Browsed by
Author: Mark H

Information technologist, knowledge management expert, and writer. Academic background in knowledge management, social and natural sciences, information technologies, learning, educational technologies, and philosophy. Married with one adult child who's married and has a teenage daughter.
Mathematical field of topology reveals importance of ‘holes in brain’

Mathematical field of topology reveals importance of ‘holes in brain’

New Scientist article: Applying the mathematical field of topology to brain science suggests gaps in densely connected brain regions serve essential cognitive functions. Newly discovered densely connected neural groups are characterized by a gap in the center, with one edge of the ring (cycle) being very thin. It’s speculated that this architecture evolved to enable the brain to better time and sequence the integration of information from different functional areas into a coherent pattern. Aspects of the findings appear to…

Read More Read More

Please recommend sources on the evolution of political impulses and thinking

Please recommend sources on the evolution of political impulses and thinking

In preparation for the March meeting topic, Your Political Brain, please recommend any resources you have found particularly enlightening about why humans evolved political thinking. Also, please share references about how brain functions lead to political perceptions. I’m assuming political perceptions result from more fundamental cognitive orientations, and that those arise in part from one’s genetics and in part from environment (during development and afterward). Let’s use the following description from Wikipedia: Politics is the process of making decisions applying…

Read More Read More

Mass and activity of brain structures correlate with political perspectives

Mass and activity of brain structures correlate with political perspectives

Brain imaging research indicates some aspects of individual political orientation correlate significantly with the mass and activity of particular brain structures including the right amygdala and the insula. This correlation may derive in part from genetics, but is also influenced by environment and behavior. “there’s a critical nuance here. Schreiber thinks the current research suggests not only that having a particular brain influences your political views, but also that having a particular political view influences and changes your brain. The…

Read More Read More

Politicians use ‘salient availability’ bias to manipulate constituents and journalists

Politicians use ‘salient availability’ bias to manipulate constituents and journalists

https://www.wired.com/2017/02/cognitive-bias-president-trump-understands-better/  “When something is memorable, it tends to be the thing you think of first, and then it has an outsize influence on your understanding of the world. After the movie Jaws came out, a generation of people was afraid to swim in the sea—not because shark attacks were more likely but because all those movie viewers could more readily imagine them.”

Neuroplasticity at the neuron and synapse level – Neurons sort into functional networks

Neuroplasticity at the neuron and synapse level – Neurons sort into functional networks

“Individual neurons whose synapses are most likely to strengthen in response to a certain experience are more likely to connect to certain partner neurons, while those whose synapses weaken in response to a similar experience are more likely to connect to other partner neurons,” Friedlander said. “The neurons whose synapses do not change at all in response to that same experience are more likely to connect to yet other partner neurons, forming a more stable but non-plastic network.”

People’s brains store and recall stories the same way

People’s brains store and recall stories the same way

New scientific findings support the idea that different humans’ brains store and recall story scenes the same way, rather than each person developing unique memory patterns about stories. Also, people generally do well recalling the details of stories. I want to see more targeted research that determines whether information packed in story structures (a person wrestling with a difficult challenge and changing as a result) is more readily and accurately transmitted from brain to brain via storytelling. This would be…

Read More Read More