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Tag: brain functions

Split attention is a ‘feature’

Split attention is a ‘feature’

“neuroscientists have determined that humans lose focus on whatever task they’re participating in four times a second in order to take stock of their environment. Since a similar study with macaques (short-tailed monkeys found in regions of Asia and Africa) achieved the same result, researchers believe that this shift in focus is an evolutionary tool primates use to react to an ever-shifting environment and avoid threats from predators. On one level, this is an excellent example of embodied cognition in…

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‘Neurosexism’ debated

‘Neurosexism’ debated

Neuroscientist Larry Cahill takes issue with a Feb 2019 Nature favorable book review of Gina Rippon’s The Gendered Brain: The New Neuroscience That Shatters The Myth Of The Female Brain. Cahill’s response prompted an interview by Medium Neuroscience writer Meghan Daum. Scientific findings have a way of upsetting apple carts, especially when we consider our oft-demonstrated human capacity to bend science to advantage some power-coveting groups over others. Valid research amply shows there are real differences in male and female…

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Ultrasound stimulation to improve brain function

Ultrasound stimulation to improve brain function

Earlier this year I attended a presentation by Dr. Jay Sanguinetti, UNM, on using ultrasound stimulation of the brain to improve factors related to attention and clear thinking. His team published an article recently in Frontiers in Neurology describing their research.

Book discussion event on embodied cognition

Book discussion event on embodied cognition

Our discussions all, to some extent, relate to cognition. An important area of inquiry concerns whether some form of physical embodiment is required for a brain to support cognition in general and the self-aware sort of cognition we humans possess. THE BOOK Philosophy In The Flesh: The Embodied Mind And Its Challenge To Western Thought, by George Lakoff and Mark Johnson. Please note, while the title includes “Philosophy,” we are not a philosophy group and the book and discussion will…

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Seismic communication: Elephants communicate through their feet

Seismic communication: Elephants communicate through their feet

During our recent meeting to discuss animal intelligence, Eve mentioned elephants communicating over large distances by transmitting and receiving low-frequency waves through their skeletons and feet. This was in the context of my question, “Is physical embodiment necessary to higher cognition?” This article and video from KQED show and explain the phenomenon. 

Fast mapping technique will revolutionize brain research

Fast mapping technique will revolutionize brain research

Tony Zador of Cold Spring Harbor Laboratory devised a new technique for mapping connections among neurons. It is much faster than other methods and at least as accurate as the most accurate competing methods, including fluorescence techniques. The technique, MAPseq, uses genetically modified viruses to insert unique RNA sequences (“bar codes”) into each neuron. Post-mortem DNA sequencing identifies connections among all neurons in the sample. The resulting model is structural, not functional. Derived models are not spatially accurate (i.e., not…

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Recording data from one million neurons in real time

Recording data from one million neurons in real time

Given the human brain’s approximately 80 billion neurons, it would take tens of thousands of these devices to record a substantial volume of neuron-level activities. Still, this is a remarkable achievement. The system would simultaneously acquire data from more than 1 million neurons in real time. It would convert the spike data (using bit encoding) and send it via an effective communication format for processing and storage on conventional computer systems. It would also provide feedback to a subject in…

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