Hacker News with Generative AI: Neuroscience

Why Noisy Rooms Are Harder for Some Brains to Handle (neurosciencenews.com)
As they age, some people find it harder to understand speech in noisy environments.
Vagus Nerve Stimulation Erases PTSD: Study (neurosciencenews.com)
In a first-of-its-kind clinical study, scientists at The University of Texas at Dallas and Baylor University Medical Center showed that patients with treatment-resistant PTSD were symptom-free up to six months after completing traditional therapy paired with vagus nerve stimulation (VNS).
AI focused on brain regions recreates what you're looking at (2024) (newscientist.com)
Artificial intelligence systems can now create remarkably accurate reconstructions of what someone is looking at based on recordings of their brain activity. These reconstructed images are greatly improved when the AI learns which parts of the brain to pay attention to.
A new hairlike electrode for long-term, high-quality EEG monitoring (psu.edu)
The future of electroencephalography (EEG) monitoring may soon look like a strand of hair.
The Nature of Consciousness in Anaesthesia (sciencedirect.com)
Neuroscientists agree on the value of locating the source of consciousness within the brain.
Researchers Create a Brain Implant for Near-Real-Time Speech Synthesis (hackaday.com)
Brain-to-speech interfaces have been promising to help paralyzed individuals communicate for years. Unfortunately, many systems have had significant latency that has left them lacking somewhat in the practicality stakes.
Cognitive Benefits of Open-Skill Sports in Childhood: Evidence from ABCD Study (nlm.nih.gov)
This study analyzed baseline data from the Adolescent Brain Cognitive Development (ABCD) study, comprising 11,869 children aged 9-10 years. Participants were categorized into open-skill sports group (OSG), closed-skill sports group (CSG), and non-sport group (NSG). Cognitive performance was assessed using seven tasks from the NIH Toolbox, covering executive function, processing speed, and language domains. Group differences were examined using ANCOVA, controlling for sex, race, parental education, income, Area Deprivation Index (ADI), body mass index (BMI), and total time spent in activities.
NAC: The Amino Acid That Turns Psychiatry on Its Head (2018) (psychologytoday.com)
Research on N-acetylcysteine (NAC) illuminates an old question.
Brain interface allows speech decoding in ALS patient (medicalxpress.com)
University of California, Davis researchers have developed a brain-computer interface (BCI) that enables computer cursor control and clicking, using neural signals from the speech motor cortex.
Type 2 diabetes alters brain circuits involved in reward processing (psypost.org)
A new study published in The Journal of Neuroscience has found that type 2 diabetes can alter how the brain processes spatial and reward-related information.
The language brain matters more for programming than the math brain? (2020) (massivesci.com)
A recent study published from researchers at the University of Washington showed that language ability and problem solving skills best predict how quickly people learn Python, a popular programming language.
Reconstructing dopamine's link to reward (2024) (thetransmitter.org)
The field is grappling with whether to modify the long-standing theory of reward prediction error—or abandon it entirely.
Dopamine signals when a fear can be forgotten (picower.mit.edu)
A new study in mice by MIT neuroscientists shows that the signal is the release of dopamine along a specific interregional brain circuit.
Methylene Blue Address Vascular-Hypometabolism in Alzheimer's Disease (gethealthspan.com)
Alzheimer’s disease (AD) is often associated with amyloid plaques and neurofibrillary tangles, yet growing evidence supports a vascular-hypometabolism hypothesis in which cerebral hypoperfusion and mitochondrial dysfunction—particularly at the level of cytochrome c oxidase—drive early disease processes.
Simons Foundation Launches Collaboration on Ecological Neuroscience (simonsfoundation.org)
The newly launched Simons Collaboration on Ecological Neuroscience (SCENE) will unite leading scientists across neuroscience and machine learning to discover how the brain represents ‘sensorimotor’ (that is, sensory and motor) interactions.
General anesthesia reduces uniqueness of brain's functional 'fingerprint' (medicalxpress.com)
General anesthesia suppresses the unique functional connectivity patterns in the brain, making it difficult to distinguish individuals based on their neural activity.
Neuroscientists are racing to turn brain waves into speech (arstechnica.com)
Neuroscientists are striving to give a voice to people unable to speak in a fast-advancing quest to harness brainwaves to restore or enhance physical abilities.
To Make Language Models Work Better, Researchers Sidestep Language (quantamagazine.org)
Language isn’t always necessary. While it certainly helps in getting across certain ideas, some neuroscientists have argued that many forms of human thought and reasoning don’t require the medium of words and grammar. Sometimes, the argument goes, having to turn ideas into language actually slows down the thought process.
Mapping the half-billion connections that allow mice to see (engineering.princeton.edu)
After nine years of painstaking work, an international team of researchers on Wednesday published a precise map of the vision centers of a mouse brain, revealing the exquisite structures and functional systems of mammalian perception.
Differentiation of human dental pulp stem cells into neuron-like cells (biomedcentral.com)
Human dental pulp stem cells (hDPSCs) constitute a promising alternative for central nervous system (CNS) cell therapy.
Dopamine 'gas pedal' and serotonin 'brake' team up to accelerate learning (thetransmitter.org)
Mice learn fastest and most reliably when they experience an increase in dopamine paired with an inhibition of serotonin in their nucleus accumbens, a new study shows, helping to resolve long-standing questions about the neuromodulators’ relationship.
Molecules that fight infection also act on the brain (news.mit.edu)
New research on a cytokine called IL-17 adds to growing evidence that immune molecules can influence behavior during illness.
Gut-brain link may affect behavior in children with autism (medicalxpress.com)
A new USC study suggests that gut imbalances in children with autism may create an imbalance of metabolites in the digestive system—ultimately disrupting neurotransmitter production and influencing behavioral symptoms.
An LSD Analogue with Potential for Treating Schizophrenia (ucdavis.edu)
University of California, Davis, researchers have developed a new, neuroplasticity-promoting drug closely related to LSD that harnesses the psychedelic’s therapeutic power with reduced hallucinogenic potential.
Mind Wandering Increases Periodic EEG, Improves Implicit Probabilistic Patterns [pdf] (biorxiv.org)
Vitamin K Deficiency Affects Cognition, Neurogenesis, and Inflammation in Mice (sciencedirect.com)
Scientists: Protein IL-17 fights infection, acts on the brain, inducing anxiety (medicalxpress.com)
Immune molecules called cytokines play important roles in the body's defense against infection, helping to control inflammation and coordinating the responses of other immune cells. A growing body of evidence suggests that some of these molecules also influence the brain, leading to behavioral changes during illness.
Low Vit K Intake Impairs Cognition/Neurogenesis/Elevates Neuroinflamma in Mice (sciencedirect.com)
In addition to its important roles in blood coagulation and bone formation, vitamin K (VK) contributes to brain function.
Lead is still bad for your brain (neurofrontiers.blog)
Talking about lead is boring. I would know, I’ve spent quite a bit of time trudging through papers about lead while writing this post and the best opening I could come up with is just how mind-numbingly boring lead is. Sadly, boredom isn’t a good indicator for importance.
Nominal Aphasia: Problems in Name Retrieval (serendipstudio.org)
Serendip is an independent site partnering with faculty at multiple colleges and universities around the world. Happy exploring!