4th anniversary: Post #2 Genetic watersheds

I look at what we humans do every day all day long in the course of living and see biological marvels. I watch from the perspective of two metaphors, 1: the genetic watersheds of SWP (Solving World Problems) and CR (Conspecific Relations) and their confluences into RS (River Sentience), RE (River Empathy), and their confluence into RC (River Consciousness; and 2: the Soma, its Brain and the MEMBRAIN. These ideas contribute importantly, I think, to understanding how embodied minds form and then come together to create the social mind of culture, a distinctly biological phenomena. Today I will summarize the watersheds. Next post will be about the soma-brain-MEMBRAIN.

watersheds

Genetic watersheds of SWP (solving world problems) and CR (conspecific relations)

The flow from two main genetic watersheds fills our gene pool. Consider that life’s evolution progresses from “a vast reservoir of fortuitous variability”, to use Monod’s phrase, and this variability comes from the uncounted chance mutational events erupting from the ground, most rising and disappearing without consequence, contributing nothing to the watershed’s flow, but some rising to pass muster first as fitting coherently with the other segments of the genome and then as increasing adaptability; these then contribute to the flow down to proceeding generations.

The timeline is quantifiable and unimaginable. Our planet Earth coalesced around 4.54 billion years ago (bya), our moon formed by one or more big asteroid strikes 4.53 bya, our planet’s water was here from the beginning or arrived by more asteroids by 4.4 bya, and evidence indicates that life had begun by 3.7 bya. With that the transition from planetary Earth to vital Gaia began. Incipient life forms began evolving further means of SWP, Solving the World Problem of finding and using nutrients, and speciation developed as life forms spread into new environments and evolved the capabilities needed to exploit the opportunities in new niches. The metamorphosis to Gaia continued until the main phyla extant today appeared by 500 million years ago (mya). The genetic springs in the SWP watershed contributed the increased ability to sense and move and to use different nutrients, all in the service of mitigating exigencies and exploiting chance (these the functions of all life’s existence), and this led to life developing sentience. Thus, the main confluence flowing down from the SWP watershed I have named the River Sentience.

Back upstream a new watershed appeared around 1.2 bya instigated by a powerful spring for sexual reproduction. The flow from this spring enabled a new source of genetic variability, not that of chance mutations but from the recombination of existent genes leading thereby to a more diverse set of individuals from generation to generation. Along with this really monumental development, this spring added on the value of conspecific relations because the search for a proper mate from amongst the great variety of individuals took on an obvious importance. The genetic watershed that developed I call CR for Conspecific Relations. Furthermore, the value of CR increased from the necessity of mate selection to the opportunities of parenting. The springs of the CR watershed began to increase the prominence of cooperation, so that around 500 mya (when the main phyla were settling in) hormonal systems developed that included oxytocin and vasopressin to promote more powerful parenting feelings and behaviors. The genetic flow from CR produced signaling among conspecifics, leading to attachment and bonding with young, the formation of families, and finally, the incipient social relations permitted by new communications among kin and kind. Thus, the main confluence flowing down from the CR watershed I have named the River Empathy.

These two great rivers, RS and RE, flowed down to the ocean of experience, upon the shores of which genotype becomes phenotype, i.e., each species procreates through its individuals, and there we have arrived at the estuarine rebirth of generational life. Here one more important development occurs as a result of the confluence of RS and RE, a confluence made possible by the evolutionary appearance of symbolic thought. The advancement of empathetic communication about the animal’s feeling states of intent, affect and cooperative engagement coupled with mirroring action and intent led to signaling and then symbolic communication about subjectively processed information. As explained elsewhere, with the empathic sense of each other’s mind comes the impulse to share some of the mind’s contents, thereby empowering a new level of social interaction. Now solving world problems (SWP) becomes a shared socially organized activity and conspecific relations (CR) becomes a world problem to be solved. With this development symbolization and empathy interact and initiate human consciousness and culture (the habitus), and so I name the river resulting from the confluence of RS and RE the River Consciousness (RC).

This first metaphor captures the long evolutionary descent of genetic flows that contribute to our species-specific form and renders this remarkable number of infinitesimal chemical and energetic events into two primary flows, SWP that carries out the mitigation of exigency and exploitation of chance in order to gain from the environment what life needs and CR that creates social domains that enlarge Gaia in organizational, informational ways. From this phylogeny we travel on to the ontogeny of each individual soma, its brain (precursor to complex) and the MEMBRAIN in 4th anniversary post # 3.

 

The purpose of sleep and the mnemonic forms of experience

 

So we have a science story in the NYT entitled ‘The purpose of sleep is to forget’: https://www.nytimes.com/2017/02/02/science/sleep-memory-brain-forgetting.html

Catchy but maybe not as summary a title as one would want. They cite some assiduous research showing that during sleep the brain decreases synapses in some areas, an action mediated by at least one particular protein that we know of. Some of this work was done by Guilio Tononi who collaborated with Gerald Edelman before his death. What a lot of good science is being done. The premise underlying the title is that loss of synapses equals forgetting. Not so fast there, my friends. Pruning improves and sharpens growth, helping forms to be articulated more coherently, as the story goes on to explain. Sure we may forget some details due to pruning, but we also forget without pruning, and the larger purpose is to remember (and imagine) more clearly. Let me explain myself better.

The NYT title refers simply to the ongoing debate about what is sleep is for. Why sleep? We know sentience and being awake helps exploit environmental resources, e.g., food. Some think sleep keeps us quiet at night when predators are about; others think sleep lets the brain clean up metabolites and such, much like I take the compost out after cooking. Tononi and colleagues posed the hypothesis a while back that sleep lets us clear our minds of the residua of the day and prepare for another and further research has slowly begun to support such a view. Presumably the synapses that shrunk, in some areas by as much as 18%, quite a significant proportion, had enlarged dealing with the exigencies of the days past. Here is my question: does the shrinkage constitute pruning, like apoptosis, or consolidation, like items in STM moving to LTM, if you get my gist here. Remember that TMs are not spaces but activity and that activity contributes to invariant and variant mental structures (you know, of information).

Our model for pruning comes from apoptosis, the death of neurons that are poorly connected or that connect poorly during early maturation of the year or so after birth, thereby contributing to the invariances of personality through attachment and affective regulation. This pruning promotes the development of other systems and structures, reducing noise in the processes, that are presumably more adaptive to the person’s niche. Our model for consolidation is not quite so clear. It can be looked at from several perspectives. There is the long standing cognitive research tradition studying short and long term memories, how the transition between them might happen and what happens when it doesn’t happen as in the case of H.M. who had his hippocampi ablated to control epilepsy but taught us so much about the loss of that transition between STM and LTM. Neuroscience, both clinical and experimental, has long studied the processes of symbolic competence and performance, i.e., the maturation and development of language and how it is compromised by disorder and trauma (aphasias, etc.). For example, consider word retrieval. Frequently used words in your vocabulary come to mind almost effortlessly while more unusual ones are more difficult to remember. Could it be that the higher frequency usage keeps the memory traces of neurons and synapses primed while pruning leaves less frequently used words less accessible?

Consider as well the connectome, that ongoing connective patterning of CNS communication amongst its systems, and the clinical example of a young scientist falling into icy water who died, whose body was recovered after some time underwater, and who was later resuscitated at a hospital, her identity intact and who with therapy came back close to her previous self and competence. Somehow her connectome was resilient and unpruned or at least, information not forgotten and lost.  Next consider the question of how dreaming plays into synaptic flux. Do synapses shrink or grow or just maintain with dreaming? And what about meditation? How does this pruning/consolidation change with developing expertise at meditation?

My list goes on, a sort of wish list for empirical clarification. When someone is depressed and their cognition is a maladaptive redundant feedback loop called rumination, what happens to their synaptic tidal rhythms? Does cognitive therapy bolster both the ebbing of ruminative circuits and their replacement with the flow of adaptive flexible and realistic cognition? Does this tidal flow while sleeping contribute to that? When someone cogitates over a problem like Monod’s colleague, Jakob Wolff, who subconsciously solved a problem leading to our understanding of rDNA, how does the brain keep the thought processes alive when asleep, as with Kekule’s dream of the benzene ring or Wolff’s insight flash during a movie with his wife? (She did indeed, I hope, understand why they had to leave the theatre and return to his desk). Did the cogitations over a theoretical problem keep certain thoughts bright and let others dim, thereby heightening and clarifying the gestalt answering the theoretical call?

This is already a longer post for me (and I have much else to do today), so let me not go into a lot more details of which there are many, and instead go back to my notion that sentience and consciousness are quite different. In my thinking sentience is a basic life function; the sensing of the environment is necessary to solve the world problem of finding nutrients and conspecifics and avoiding the bad stuff. The evolution of sentience, then, can be traced from early single celled organisms to multicellular ones and then through its evolutionary victory with vertebrates, especially mammals. When we think of an animal’s Umvelt, we usually think of its sentient abilities. Consciousness is the contribution of the organism’s own autogenic impulses to its Umvelt; consciousness is the suffusion of information from memory and imagination to sentience. I have talked about this many times in past posts, like when I say we can be +/-sentient and +/-conscious, creating a 4 celled matrix:

SENTIENCE/CONSCIOUS            + sentient                                  -sentient

+conscious                                       awake                                              dream (REM sleep)

-conscious                                       hypnosis/dissociative                    sleep (slow wave)

I have also discussed this in reference to Jaak Panksepp’s remarkable observation that the center for dreaming (REM) seems to have appeared in evolution before the centers for arousal/awake. Thus, looking at this in a poetic light, animals dreamed before they awoke. (Actually the earlier dream centers controlled arousal through the suffusion of conscious energy into sentient processes. With further evolution sentient processes gained their own arousal governance system, I presume because of the increasing scope and power of perceptual abilities, e.g., olfactory, auditory, and visual and the special systems for conspecific recognition and interaction and consciousness increased in its power to manage memory and imagination.)

Here’s my point now: The research into the tidal ebb and flow of synapses during sleep does not reveal that the purpose of sleep is forgetting, though that is part of it, but it does provide a glimpse into how sentience and consciousness interact in a balanced manner, of how they are balanced. This is a dialectical process by which the organism’s vital nerve centers incipient to its intentional stance exert control over and respond to the sentient processes that are necessary for adaptive functioning. Unconscious sentience is mechanical and inflexible. Insentient consciousness is fluid with a reality unbounded by necessities though fertile with possibilities. Conscious sentience, when balanced, allows creative intelligence to flourish, and some of that balancing occurs when unconscious insentience allows the chaff of the days to be separated from the seeds needed for the next mental crop.

So remember, please, as you travel on, where you read such thoughts first put together. I will pause and dream about variant and invariant forms in language and art, in memes and tropes, and how each aesthetic communication transmits an organized form of experience allowing it to be replicated in another mind and how this organization leads to mobilization. Right on.

The heirs of Wolfgang Kohler

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Wolfgang Kohler

This is Wolfgang Kohler who had a remarkable and distinguished scientific career in Germany and then America where he went to elude Nazi authorities. He was one of the founders of Gestalt psychology and coined the phrase, “The whole is different from the sum of its parts.” He understood the methodological and theoretical limits of introspection and behaviorism, and he studied chimpanzees for awhile early in his career. Thank you, Wikipedia. I refreshed my memory there because his name came up in two very different books.

I have finished re-reading Edelson and Tononi’s How Matter Becomes Imagination, and Kohler is mentioned at the very end. They discuss the necessity of incorporating values and emotions into our theories and experimentation for neuroscience if we are to understand consciousness. They conclude by citing the title of Kohler’s 1938 book, The Place of Value in a World of Fact. Their stance, especially Edelson’s, that the brain is not a computer is noteworthy in this regard. Their analysis focuses on language as a necessary condition for what they call ‘secondary consciousness’. Their ‘primary consciousness’ is what I would call sentience, and while they acknowledge that our minds are embodied in social animals, their analysis slights this facet by neglecting empathy and kinesic communication to focus on linguistic symbolization.

Now contrast their approach with that of Frans der Waals who focuses on empathy and social relations and shows a high level of consciousness amongst the simians at least. I am now deep into his newest book, Are We Smart Enough to Understand How Smart Animals Are?, and he mentions Kohler many times because Kohler advocated getting to know the species by observing and working with them based upon their natural, ecologically driven behaviors. Der Waals says at one point that a human giving human tests to children and chimpanzees in order to compare their intelligence, saying they had treated them the same, is like throwing a cat and a fish in a pool and saying they had treated them the same. Kohler was early on, say 1913, a proponent of species specific talents requiring sensitivity for studying their particular intelligences. One of the great pleasures of reading this book is der Waals’ incredible knowledge of different animals’ different behaviors and what these indicate about their cognitions.

41Qs-4KzRHL._SY344_BO1,204,203,200_

Der Waals highlights another early scientist, Jakob von Uexkull, and his concept of the Umwelt, i.e., “the perceptual world in which an organism exists and acts as subject” (from Wikipedia). The umwelt is the beginning of signifying functions for the organism. In vertebrates the sensorium or ambient of its ecological niche is different from their umwelt which is transformed by the values placed upon or interpreted from the sensorium. Important, yes? Our umwelts differ from that of chimpanzees or bonobos not in our consciousness of others but in the prominence of our conspecific relations (this from der Waals). Mammalian umwelts differ from those of non-mammals by the prominence of social relations in general.

This is one motivation for my concept of the MEMBRAIN, that part of the brain that processes social communication. Within each MEMBRAIN a self gazes upon an umwelt filled with social objects, procedures and autobiographical memory along with information from the sensorium. With the advent of symbolic capacities the umwelt depends less upon ambient information and more upon information generated within through symbolic control. The common factor in all of this is conspecific relationships.

These two books are both excellent and quite different from each other because the science behind them is quite different. Edelson (now deceased) and Tononi, who have probably forgotten more neuroscience than I will ever know, examine brain functioning from a high theoretical perspective from where they can see neural systems energize, organize, and flow as conscious processes arise to facilitate adaptive mentation. They are quite positivistic in orientation and exemplary in their understanding of the limits such an approach meets. For example, they say that art results from consciousness but that studying the brain does not contribute much to our aesthetic understanding; they say that such contemplations yield only “trivial” contributions. Amen (and someday I might discuss this in terms of a book, Biopoetics).

Der Waals, on the other hand, studies animal behavior through observation of the species in a more natural ecological setting and through experimental designs based upon our current understanding of the animal’s umwelt. In his discussion of animal research we see the power of life as it is manifested in mental control of adaptive processes and the biological roots of our humanity. Travel on.

Back to the connectome

So re-reading Edelson and Tononi’s book, A Universe of Consciousness: How Matter Becomes Imagination, I began thinking about the connectome. In previous posts (5/31/15, 6/29/15, 9/23/15) I have talked about how the connectome is the dynamic set of connections and neural activity that is ongoing, shaped by experience, flexible enough for cogitating new circumstances yet set deeply enough to maintain personality, cognitive skills, and autobiographical memory over a lifetime and even beyond when you consider the young lady (see post 1/10/15) who was chilled to death for some hours and then revived well enough with therapeutic help to recover her self more or less completely over time. She put the ‘om’ in connectome.

White_Matter_Connections_Obtained_with_MRI_Tractography

Connectome picture

Now as best I can understand, Edelson and Tononi’s model for conscious functioning is that some large and specific portion of the connectome organizes into a dynamic core of activity where neural systems in the cortex and their perceptual motor systems switchboarded in the thalamus sustain patternings that then shapes them as needed. Here is where their concept of re-entrance comes in because it is through feeding forward (and backward and sideways) to enhance and diminish certain facets so that the dynamic core is sustained, i.e., by ‘re-entering’ processed results into the same systems to support both invariant information structures and then editing needed variants. The scope and specificity of their conceptualization of a general process capable of operating on many levels is mind-boggling and the reason why I am reading it again slowly.

thalamus

The thalamus has many divisions that relay and integrate perceptual-motor information with their corresponding cortical areas.

Two things re-enter my mind here. The first is the PLOS article by Eve Marder (see post 5/31/15 & 6/3/15 & 6/29/15) wherein she discusses her rigorous work developing a technique for stimulating, i.e., delivering an electrical pulse, a small number of neurons, even just one, and then studying the resultant spread of excitation. Looking at the image of the connectome, imagine kicking one node and figuring out what changes, i.e., discerning the variance in the patterns. In her article she says something to the effect that the ongoing connectome activity is so powerful that one change is quickly drowned in a sea of complexity and the connectome’s momentum, like a single drop into choppy waters. Change large enough for the dynamic core to be a re-frame comes about through specific events, e.g., startled by the lion’s roar, or through the intelligent re-entrance as the brain clarifies, apprehends, understands, considers and acts.

What I find especially important here is the autonomy and flexible independence of the connectome because this smacks of the animal’s own determinate life impulse.   Living forms are the compositors of their own experience, and we humans are distinctly talented primates in this regard. We not only compose and re-compose our experience as we live but we also compose what is beyond our experience. I do not think we could do this without a well-organized self agency and a virtual mental context generated through symbolization. Further I do not think doing this would matter at all if not connected empathically with other minds.

Here I come back to what has kept my interest for a long time, Susanne Langer’s characterization of mental action as either impactive, i.e., incipience felt from without, or autogenic, i.e., incipience felt arising from within. For example, I startle with the impact of the lion’s roar; my emotional energy rises autogenically to energize and direct my actions. Consider the connectomes and which information or processes were re-entered, i.e., kept in mind, prevalent in a hunter-gather society, in a pre-literate one, in farmers, with the advent of writing, in shaman organizing metaphysical activity, in scientists dedicated to understanding our world and ourselves, and here’s the most interesting one to me, in artists composing their works as an expression of their felt experience, some invariant form communicable to others composed from the variant images, thoughts and feelings of their lives.

Each person’s connectome must absorb much impactive energies to maintain reality orientation and adaptive success, and every person’s connectome is an expression of the autogenic energies from within; indeed, the genome of a fertilized egg is the chemical spark igniting each life that then burns for awhile before exhausting its run. Understanding this life energy as the basis of artistic endeavors is the task I took from reading Langer long ago and again recently as I re-read Edelson and Tononi. Travel on.

Beyond hippocampus redux

Another article in Science News (4/30/16) shows our further understanding of this remarkable structure and lets me speculate even more. This new report is about research that shows that the hippocampus maps social objects, i.e., conspecifics or people if you are Homo sapiens as in the experimental study, or maybe rats if you are a rat, a mammal in which the hippocampus evolved early to serve memory especially for spaces and sounds in their case. This brings up two issues: one is how we conceptualize and talk about such phenomena and our research into them and the second is the difference between experimental laboratory studies and in vivo ecological studies, i.e., real life not the lab, and my speculation on what we will find we can do more of the latter.

To review a bit for the newer readers of my blog, the hippocampus (actually hippocampi, right and left) is a cortical structure which receives input of highly processed information from the posterior perceptual areas for processing as old or new, remembered or to be remembered, and feeds its results into frontal areas to support intentional guidance. It is one of my favorite areas for discussion so I have several blog posts on it over the years. It is an area between midbrain and cortex, so that is either at the peak of midbrain evolution and operates as the cortex for the limbic system, the emotional core of the brain or at the beginning of the neocortex and the evolution of the cerebral hemispheres and higher cognition.

Gray739-emphasizing-hippocampus

Hippocampus on the left side under the cut away cortex and on top of the limbic system

The Science News article focuses on studies with rats when mapping tonal sequences or time’s passage is important and a study with humans undergoing a computer simulation of hunting for a new home or job. The subjects interacted virtually with different characters and formed judgments about their power and approval of the subject. The interaction with the virtual characters correlated with activity in the hippocampus and upon further analysis, the judgments formed correlated with some behavioral traits associated with social anxiety. So imagine in the real world, going to a party with mostly familiars or with mostly strangers, we would imagine that our hippocampi would keep up with, i.e., map, the people we meet in different ways for strangers and familiars, that people with different social approaches, e.g., low or high social anxiety, introversion or extroversion, would map the interactions quite differently and subsequently remember the events quite differently.   So later on, say that night while sleeping, the hippocampi would consolidate particular memories of the party; they would extract the more salient experiences for memory input based upon their emotional stance.

The articles I read in Plosbiology are quite technical and I can only partially digest them. Still what I can glean there is interesting. They all used the electrical activity (EEGs of various sorts) to correlate with behavioral/mental activity. One looked at how the hippocampus grows quieter during REM (dream) sleep, where by quieter I mean more synchronized, i.e., less analysis going on, and with lower energies. This would seem to indicate that its role as memory organizer for input has momentarily paused while the selected memories are consolidated for later recall. Another article reports research showing that, contrary to current thinking and models, memory input-recall is done unconsciously as well as consciously. Many currently think conscious processing is needed for input and recall, though why I do not know. There is a lot of literature now showing that subconscious processes do much of the work—see Malcolm Gladwell’s book Blink for one perspective on this.

The third article is the most interesting to me because it shows differences between right and left hemispheres in detecting new information. Specifically the left hippocampus works more at detecting violations of expectations while the right hippocampal circuit monitors novelty and changes more generally. Are we using our left sided linguistic abilities to set and codify expectations for monitoring? Sure, look at the science about inner speech. Is the right side more concerned with the ongoing present, our consciousness being the remembered present (to use William James’ term)? Sure, look through my blog.

Now all these studies looked at the brain’s and the hippocampus’ response to events impacting our perceptual systems as set up by experimental designs. Leaving the strictly positivistic behind while still remaining empirically oriented I want to ask about functioning in the natural world (in vivo and ecological), about how we talk about hippocampal processing, and most especially, about the brain’s own creative processes that underlie artistic activity.

Consider how the hippocampus and its functions presumably develop early in life. Mostly immature at birth it quickly matures during the sensitive early years to acquire the ability to map space and time, things, and animate objects, not just people–remember toddlers’ affinities to other animals, especially dogs. These social maps, in conjunction with other areas such as the higher visual cortex for facial recognition and the lower limbic areas for attachment and emotional regulation, come to demarcate family and intimates from others, familiars from strangers and safety from danger. Imagine the impact on these incipient maps when intimates turn out to be dangerous as happens in instances of childhood maltreatment. Treasure the impact of healthy families on these same maps.

Consider what is actually being mapped here. Yes, experimental science, in order to progress in a sure-footed manner, must study aspects with careful controls. So studies have shown that the hippocampus maps space, time, things, and others. In a more holistic sense the hippocampus maps our experiences. Remember the patient H.M. (see post on ) who had a bilateral hippocampectomy, i.e., surgical removal of both hippocampi, in the effort to control severe epilepsy. He lost the ability to make new memories even though he could remember educational material and some events from his long past. He failed to recognize his doctors and other medical personal and the scientists studying his neuropsychological deficits even though he saw some of them almost every day, even though he had seen them an hour beforehand. He could converse and express himself on many topics and retained some procedural memories of how to do things. One conversation I find remarkable is reported in Joseph’s Neuroscience text. H.M. asked someone what he had done in the past little while because he was worried he may have done something wrong. He knew he had done something but he did not know what and so worried about that. His consciousness lacked the experience of the remembered present. (To my mind his worries mark him as a true gentleman as opposed to some politicians and sociopaths who worry about this not at all).

Consider what we do not know about hippocampal functioning during artistic endeavors such as dance, novels or music. I am quite sure that dancing, at least well with others, involves hippocampal maps for guidance. Ritualized and choreographed motions would necessarily involve maps for space, time, and others as well as procedural memories for the actual movements. Ritualized motion would summon emotional involvement in a consistent acculturated manner; modern choreographed motions would summon emotional involvement in a dramatic manner. What about novels with their virtual space, time, characters and experiences, all from different perspectives? Here I do not think we know much about how the hippocampus might function in support of the virtual domains involved and I do not think the hippocampus as a part of the perceptual-motor system dealing with objective events is sufficient for virtual operations. For these I think that dorsal and ventral loops involving longitudinal fasciculi in the cortex must contribute (see post Important stuff 2/11/16). So I wonder how Faulkner knew Yoknapatawpha County so well and how Gandalf and Aragorn knew all the paths of Middle Earth.

Finally consider music that I have focused on here so recently. Memory for tones, rhythms, melodies, beats seem basic and probably involve procedural memories as well. Memories for the biographical frames of favored songs are among the last to be lost with dementia, sometimes lasting even after one’s own identity is forgotten. This highlights again an important feature of hippocampal functioning, the setting of a standard or the stabilizing memory of the song’s emotional tone and echoes in a fashion analogous to its noticing things are out of place or out of order as reported in the previously cited studies and in H.M.’s worries. We experience only as we are able to fit moments together and this requires that we organize our mental functions coherently in an integrated fashion as moments in our life. Somehow our brains know what melodies work for a particular culture–no atonal tunes for me please–and some brains know innovative genius upon hearing; think of the responses to Stravinsky’s Rite of Spring.  So good job, hippocampus, and thanks for the memories.

Conscious or not?

For some reason several news stories have popped up questioning whether other animals are conscious. Try these links:

http://www.nytimes.com/2016/04/19/science/honeybees-insects-consciousness-brains.html

Or

http://earthsky.org/earth/are-super-smart-octopuses-conscious?utm_source=EarthSky+News&utm_campaign=ef3953ce97-

I like these stories because they bring up the issue of what kind of minds our fellow beasts have. Of course some scientists and philosophers reserve consciousness for animals with symbolic capabilities, which restricts it to humans, but I think other factors are involved here. The earthsky article says that animals, like Inky the octopus who smartly escaped his aquarium, are intelligent enough to be conscious, but if intelligence were key, that would rule out some people I know and some politicians I read about.

Long ago I posted about the difference between sentience and consciousness. Let me review: They are not synonyms. Sentience is the alert perceptual awareness of your environment, internal as well as external. When you sleep, then you are insentient. Sentience would seem to me an inherent property of all life because all life must sense and find resources. Sure sentience comes about in many ways, from the amoeba’s sensitive membrane, the lobster’s vision and chemical senses, or mammalian perception along with the sleep-wake cycle. So all life is sentient (yes, even trees in this view—don’t their leaves follow the sun? don’t  they communicate with chemicals?); one facet of their intelligence is how sophisticated their sentience is .

Now consciousness is a different matter. We can be sentient but unconscious as when we are hypnotized or drive too long fatigued and experience what is called highway hypnosis. We can be insentient but conscious as when we dream. We can be both sentient and conscious as I hope we all are as of this writing and reading or we can be neither as when we fall into deep, non-REM sleep. (It has occurred to me that dissociative processes can involve being both sentient and conscious in a disconnected way, e.g., PTSD flashback). Consciousness, then, is a quality dependent upon our internal subjective awareness. I have posted before about the claustrum that Crick and Koch think is the conductor organizing mental or conscious processes. When the claustrum is momentarily ‘turned off’, the person remains awake but unconscious and remembers nothing of the experience; our subjectivity is disrupted.

We humans are able to monitor and control (to a lesser degree than some might think) our thoughts because of our symbolic capacity, so it does seem that symbols are important to our consciousness. While other animals may not communicate symbolically, some must have some proto-symbolic processes that facilitate mental control. (So as not to ignore what ‘proto-symbolic’ entails, please consider how animals control information displaced in time and space mnemonic or imaginative but beyond the current situation). I think that something else is important to whether or not an animal’s sentience also develops into consciousness (hint: the title of this blog).

Consciousness arises in animals who are social and have an empathic awareness of another’s mind and so an increased awareness of their own. (This is close to the basis of object relations theory in psychodynamic psychology.) In this view consciousness is a matter of degrees, not all or none. How empathically tuned is the animal and how robust are its symbolic or protosymbolic capabilities? Our human consciousness is a paragon here because our roots of empathy and symbolization have joined mightily in the evolution of our lineage.

Yes, some old fogeys want to keep consciousness as one of humanity’s special traits, but don’t you buy it. That is, in de Waal’s terminology, anthropodenial. On the other hand, yes, your dog is conscious to some degree, but a different one than ours or simians or cetaceans. In one of his books, Frans de Waal utters a challenge for anyone to interact with a bonobo or chimpanzee, look into their eyes and then deny they are conscious. Can’t be done if you yourself are conscious.

Which brings me to consider whether or not some politicians who utter repeatedly an ill-considered script and show an utter disregard for the empathy required for normal interactions are conscious. Could NIMH study them? Maybe better to follow the path set by Inky. Travel on.

chimpanzee-personality

So you think you are conscious and that it somehow matters, eh?

a longer post on sleep

Awhile back I read two things that jostled something loose in my brain and I am working to get a handle on what and where it is. The first item was a PLOS article asking if infant sleep were a precursor to adult sleep, linked here.

http://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.0060269

This is an odd question to me, because all things infant (except those neurons marked for apoptosis or cell death) are the precursors of most adult things. Ask William Wordsworth and he will tell you:

My heart leaps up when I behold

A rainbow in the sky:

So was it when my life began;

So is it now I am a man;

So be it when I shall grow old,

Or let me die!

The Child is father of the Man;

Anyway the researchers found infant sleep to have similar components to adult sleep, so we also have it scientifically. The specifics here are interesting. The researchers identified cells in the pons (of mice) that turn off the body’s motor output, resulting in atonia, the limp, relaxed body state of sleep. Other cells turned on the twitching movements characteristic of dream states. Both of these are critical components of REM sleep, so that infant sleep is indeed a precursor to adult sleep, i.e., there is continuity of function through development. Of course we knew that but just hadn’t found it right here.

Reading further these researchers are following up on some work by Howard Roffwarg, a preeminent sleep researcher since the 1960s. He presented the notion in 1966 that dreaming, aka REM sleep, plays a role in our neurological development. In this he focused on the fact that for all mammals, REM sleep is more frequent during infancy than during adulthood, and that for adults, sleep and dream deprivation has serious negative results. This is great work.  Here is his picture and a good bio:  http://www.cumc.columbia.edu/psjournal/archive/archives/jour_v19no2/profile.html

Dr. Roffwarg

Dr. Roffwarg

Now while reading about this research, I also read in Joseph’s Neuroscience text that infants, who we know spend much time asleep and much of that time in REM sleep, also show REM during wakefulness. Dr. Roffwarg, it turns out, was probably one source for this information. He found that infants engage in more REM sleep, go directly from awake to REM unlike adults who have to have some period of deep sleep before REMing, and that the eye flutters and gurgles of satisfaction after nursing are really the manifestation of REM, the pons instigating the movements and relaxation.

I like this. If you have followed this train in my posts, you may remember that 1) I think consciousness is the autogenic (following Langer) control of sentience and 2) that sentience and consciousness, being two different things, can be on and off at different times. Sentience is a basic life function: find the nutrients out there and move on to more. Consciousness evolves as the CNS cephalizes and autogenic impulses, the vital energy the animal produces autonomously not in response to any impact from outside, take control of  sentient functions. From a past post, then, I thought that adults can be both sentient and conscious (as I assume you are now), not sentient but conscious (as in REM dream sleep), unconscious but sentient (as in highway hypnosis), and unconscious and insentient (as in deep sleep). Infants in their sleep patterns develop some control over these 4 states, thereby creating more discrete and adaptive functioning modes.

Now Dr. Roffwarg has studied the complexities involved in REM sleep as it prepares the developing mind for learning and then helps to maintain the mature mind’s capacity. From my perspective, early REM helps the developing self and MEMBRAIN exert control over sentient functions, the ones dedicated to perceiving the external environment and moving on to life sustaining activities. With this control comes the ability to be conscious, i.e., mindful, of non-sentient information such as memory and symbols. Thus, ‘priming’ for learning means the integration of perceptual information with intentional formation (and its displaced information), and ‘maintenance’ means the rhythmic resurgence of autogenic impulses over sentience while the sentient flow is much reduced. This would be another essential part of sleep: quieting the soma and its need for sentient processing of the welter out there, so that the information rising into the more mindful layers is self-generated. Which brings up the subject of meditation, but enough for now.

so is this kid dreaming or what?

so is this kid dreaming or what?