Category Archives: brain functioning

Dancing mitigates aging decline

See the study here in Frontiers of Human Neuroscience, 15 June 2017. From the abstract:

“Dancing seems a promising intervention for both improving balance and brain structure in the elderly. It combines aerobic fitness, sensorimotor skills and cognitive demands while at the same time the risk of injuries is low. […] Hence, dancing constitutes a promising candidate in counteracting the age-related decline in physical and mental abilities.”

The real problem of consciousness

See this article. A few excerpts:

“A new picture is taking shape in which conscious experience is seen as deeply grounded in how brains and bodies work together to maintain physiological integrity – to stay alive.”

“The brain is locked inside a bony skull. All it receives are ambiguous and noisy sensory signals that are only indirectly related to objects in the world. Perception must therefore be a process of inference, in which indeterminate sensory signals are combined with prior expectations or ‘beliefs’ about the way the world is, to form the brain’s optimal hypotheses of the causes of these sensory signals.”

“A number of experiments are now indicating that consciousness depends more on perceptual predictions, than on prediction errors. […] We’ve found that people consciously see what they expect, rather than what violates their expectations.”

Real and false reason

Some liberals (and scientists) still think that reason is somehow above and beyond emotion. When I suggest framing in emotional terms they say sure, but that works only for emotional issues as if reason is something beyond emotion. So here’s a reminder from  this Lakoff classic:

“It is a basic principle of false reason that every human being has the same reason governed by logic — and that if you just tell people the truth, they will reason to the right conclusion. […] But many liberals, assuming a false view of reason, think that such a [moral, emotional] messaging system for ideas they believe in would be illegitimate — doing the things that the conservatives do that they consider underhanded. Appealing honestly to the way people really think is seen as emotional and hence irrational and immoral. Liberals, clinging to false reason, simply resist paying attention to real reason.”

“Real reason is embodied in two ways. It is physical, in our brain circuitry. And it is based on our bodies as the function in the everyday world, using thought that arises from embodied metaphors. And it is mostly unconscious.  False reason sees reason as fully conscious, as literal, disembodied, yet somehow fitting the world directly, and working not via frame-based, metaphorical, narrative and emotional logic, but via the logic of logicians alone.”

“Real reason is inexplicably tied up with emotion; you cannot be rational without being emotional. False reason thinks that emotion is the enemy of reason,  that it is unscrupulous to call on emotion. Yet people with brain damage who cannot feel emotion cannot make rational decisions because they do not know what to want, since like and not like mean nothing. ‘Rational’ decisions are based on a long history of emotional responses by oneself and others. Real reason requires emotion.”

Promising metabolic therapy for dementias

An article describes a personalized therapeutic program involving 10 patients and using multiple modalities for metabolic enhancement for neurodegeneration (MEND).

The first 10 patients who have utilized this program include patients with memory loss associated with Alzheimer’s disease (AD), amnestic mild cognitive impairment (aMCI), or subjective cognitive impairment (SCI). Nine of the 10 displayed subjective or objective improvement in cognition beginning within 3-6 months, with the one failure being a patient with very late stage AD. Six of the patients had had to discontinue working or were struggling with their jobs at the time of presentation, and all were able to return to work or continue working with improved performance. Improvements have been sustained, and at this time the longest patient follow-up is two and one-half years from initial treatment, with sustained and marked improvement. These results suggest that a larger, more extensive trial of this therapeutic program is warranted. The results also suggest that, at least early in the course, cognitive decline may be driven in large part by metabolic processes. Furthermore, given the failure of monotherapeutics in AD to date, the results raise the possibility that such a therapeutic system may be useful as a platform on which drugs that would fail as monotherapeutics may succeed as key components of a therapeutic system.

Cognitive decline as early as 18 years prior to clinical diagnosis of dementia

Performance on individual cognitive tests of episodic memory, executive function, and global cognition also significantly predicted the development of AD dementia, with associations exhibiting a similar trend over 18 years.

Conclusions: Our findings suggest that cognitive impairment may manifest in the preclinical phase of AD dementia substantially earlier than previously established.

State of AI progress

An MIT Technology Review article introduces the man responsible for the 30-year-old deep learning approach, explains what deep machine learning is, and questions whether deep learning may be the last significant innovation in the AI field. The article also touches on a potential way forward for developing AIs with qualities more analogous to the human brain’s functioning.

Future discussion topic recommendations

Several of us met on Labor Day with the goal of identifying topics for at least five future monthly meetings. (Thanks, Dave N, for hosting!) Being the overachievers we are, we pushed beyond the goal. Following are the resulting topics, which will each have its own article on this site where we can begin organizing references for the discussion:

  • sex-related influences on emotional memory
    • gross and subtle brain differences (e.g., “walls of the third ventricle – sexual nuclei”)
    • “Are there gender-based brain differences that influence differences in perceptions and experience?”
    • epigenetic factors (may need an overview of epigenetics)
  • embodied cognition
    • computational grounded cognition (possibly the overview and lead-in topic)
    • neuro-reductionist theory vs. enacted theory of mind
    • “Could embodied cognition influence brain differences?” (Whoever suggested this, please clarify.)
  • brain-gut connection (relates to embodied cognition, but can stand on its own as a topic)
  • behavioral priming and subliminal stimuli (effects on later behavior)
  • incremental theory – “The Dark Side of Malleability”
  • creative flow as a unique cognitive process
  • Eastern philosophies and psychology – a psychology of self-cultivation
  • neuroscience of empathy – effects on the brain, including on neuroplasticity (discussed October 2017)
  • comparative effects of various meditative practices on the brain
  • comparative effects of various psychedelics on the brain
  • effects of childhood poverty on the brain
  • neurocognitive bases of racism

If I missed anything, please edit the list (I used HTML in the ‘Text’ view to get sub-bullets). If you’re worried about the formatting, you can email your edits to and Mark will post your changes.

There’s no such thing as a male or female brain

See this New Scientist article. Excerpt:

When the group looked at each individual brain scan, however, they found that very few people had all of the brain features they might be expected to have, based on their sex. Across the sample, between 0 and 8 per cent of people had “all-male” or “all-female” brains, depending on the definition. “Most people are in the middle,” says Joel.

This means that, averaged across many people, sex differences in brain structure do exist, but an individual brain is likely to be just that: individual, with a mix of features. “There are not two types of brain,” says Joel.

‘Entangled’ consciousness app approaching release

The Global Consciousness Project, Institute of Noetic Sciences (IONS, for which I was once Hawaii state coordinator) and Princeton Engineering Anomalies Research (PEAR) are collaborating to release a smart phone app, Entangled, that aims to

  • Monitor your mind’s influence on your physical environment
  • Let you take part in large-scale consciousness experiments
  • Support ongoing development of a”consciousness technology” platform for developers and artists
  • Monitor global consciousness data in real-time

Before you think I’ve gone off the deep end, let me explain that I gently stepped away from IONS after nearly 20 years because I did not see enough focus on or progress toward their stated goal—scientifically researching consciousness. I fully enjoyed their practice-oriented emphases on intuitive, embodied, mindful living, but while they remained ‘entangled’ in New Age phenomenalism and esoteric speculations, true scientific programs at many universities and research organizations have made steady, sometimes frustratingly slow progress (which is how science typically works). So, please don’t take this post as a tacit endorsement of any of the sponsoring organizations. They each raise interesting questions and do some work of scientific merit or promise, but (in my view) if you’re interest is in verifiable, repeatable, causally intelligible phenomena, you must stay vigilant of the unscientific chaff.

That said, the spike in non-random streams in random number generators immediately prior to the 9-11 atrocity remains one of the very few well-documented phenomena that could be taken to imply a correlation between a specific objective event and human transpersonal consciousness. In the view of the Global Consciousness Project, by collecting large samples of the right sorts of data, they can test their hypothesis that “Coherent consciousness creates order in the world. Subtle interactions link us with each other and the Earth.” As I understand it, they are extrapolating to the transpersonal level how an individual brain achieves coherent, self-aware states. Also, they would say we’re aware of the apparent precognitive 9-11 phenomenon because someone was collecting the relevant data that could then be recognized as correlated. The Entanglement app aims to collect more of such data while also providing users real- or near-real-time feedback.

If truly well-designed scientific research programs can show significant evidence of direct, entanglement-like correlations between objectively observable phenomena and consciousness (shown in brain functioning), I’ll be excited to learn about it. I think this is a monumental challenge.