Hacker News with Generative AI: Human Brain

Deciphering language processing in the human brain through LLM representations (research.google)
Large Language Models (LLMs) optimized for predicting subsequent utterances and adapting to tasks using contextual embeddings can process natural language at a level close to human proficiency. This study shows that neural activity in the human brain aligns linearly with the internal contextual embeddings of speech and language within large language models (LLMs) as they process everyday conversations.

Neuroscience, Human Brain

184 points by Korling 36 days ago | 106 comments

What ketamine does to the human brain (theatlantic.com)
Excessive use of the drug can make anyone feel like they rule the world.

Drugs, Neuroscience, Human Brain

72 points by aagha 45 days ago | 19 comments

Head Games – a humiliating list of all the ways your brain can deceive you (futilitycloset.com)
This is beautifully well done — a humiliating list of all the ways your brain can deceive you (click to enlarge).

Psychology, Cognitive Science, Human Brain, Neuroscience, Deceptions

9 points by beardyw 72 days ago | 0 comments

The Roots of Fear: Understanding the Amygdala (ucdavis.edu)
Treating anxiety, depression and other disorders may depend on the amygdala, a part of the brain that controls strong emotional reactions, especially fear. But a deep understanding of this structure has been lacking. Now scientists at the University of California, Davis have identified new clusters of cells with differing patterns of gene expression in the amygdala of humans and non-human primates. The work could lead to more targeted treatments for disorders such as anxiety that affect tens of millions of people.

Neuroscience, Mental Health, Anxiety, Research, Human Brain

146 points by birriel 173 days ago | 54 comments

What's so special about the human brain? (nature.com)
Torrents of data from cell atlases, brain organoids and other methods are finally delivering answers to an age-old question.

Neuroscience, Biology, Human Brain, Science

6 points by mschnell 177 days ago | 0 comments

Study Reveals the Brain Divides the Day into Chapters Like a Book (sciencealert.com)
Life can feel like a novel some days, full of romance and mystery, and perhaps a touch of horror or even a little fantasy. So perhaps it comes as little surprise that the human brain keeps track of narratives in discrete chunks not unlike the chapters of a book.

Neuroscience, Cognitive Science, Psychology, Human Brain

9 points by isaacfrond 190 days ago | 0 comments

Brain detects patterns in the everyday: without conscious thought (nature.com)
The human brain is constantly picking up patterns in everyday experiences — and can do so without conscious thought, finds a study1 of neuronal activity in people who had electrodes implanted in their brain tissue for medical reasons.

Neuroscience, Human Brain, Pattern Recognition, Consciousness

11 points by NoRagrets 209 days ago | 0 comments

The Human Brain in Numbers: A Linearly Scaled-Up Primate Brain (nlm.nih.gov)
The human brain has often been viewed as outstanding among mammalian brains: the most cognitively able, the largest-than-expected from body size, endowed with an overdeveloped cerebral cortex that represents over 80% of brain mass, and purportedly containing 100 billion neurons and 10× more glial cells.

Neuroscience, Biology, Human Brain, Evolution, Primates

8 points by robertclaus 214 days ago | 0 comments

Abstract representations emerge in human hippocampal neurons during inference (nature.com)

Neuroscience, Human Brain, Inference, AI

11 points by rntn 253 days ago | 0 comments

Why your brain is 3 milion more times efficient than GPT-4 (grski.pl)

Human Brain, AI, Efficiency, GPT-4

158 points by sebastianvoelkl 307 days ago | 206 comments

Ten years of neuroscience at Google yields maps of human brain (research.google)