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Archive for the ‘neuroscience’ category: Page 99

Mar 2, 2024

Ableism Puts Neurodivergent Students at a Disadvantage

Posted by in categories: biotech/medical, neuroscience

Physics has a diversity problem: those with identities outside of the majority “able-bodied, white, cis, and male” face significant barriers to entry. While efforts in the US to level the playing field are beginning to show success, studies continue to find that minority physicists will likely experience some form of bigotry, bias, or barrier during their career that will hamper their chances of success. These inequities and biases range from skewed course structures that favor specific learning styles (see Research News: Restructuring Classes Can Level the Playing Field) to systemic prejudices that hinder some groups from gaining grants (see News Feature: Systemic Racism Reflected in Grant Allocations, Researchers Argue) to unconscious biases that lead to the significant undercitation of minority physicists compared to their white, male counterparts (see News Feature: The Uneven Spread of Citations). All these factors can have serious career consequences, with negative experiences being a key factor driving people to leave the field.

One lesser-studied aspect of identity and how it impacts a person’s experience in physics is neurodivergence—a nonmedical umbrella term used to describe people whose brains process information in way that is different to what is considered normal. Now Geraldine Cochran of Ohio State University and Liam McDermott and Nazeer Mosley, both of Rutgers University, New Jersey, have developed a framework for interpreting the experiences of this group of people [1]. An initial analysis of interviews with three neurodivergent physicists shows that, while this group reports little outright discrimination or violence, structural ableism negatively impacted their time as students. “There are more neurodivergent people entering college than ever before,” McDermott says. “But their needs regularly get overlooked.”

A person who identifies as neurodivergent may have a neurological disorder, such as autism or Tourette’s syndrome; they may have a learning disability, such as dyslexia (which affects language processing) or dyscalculia (which affects number processing); or they could have a mental illness, such as depression or anxiety. For their study, Cochran, McDermott, and Mosley interviewed three physicists who identified as being neurodivergent and who pursued nonacademic careers after completing their undergraduate degrees. All three identified as having attention-deficit hyperactivity disorder (ADHD) and anxiety. Sky (the interviewees were all given pseudonyms) also has depression, Catalina has depression and dyslexia, and Henry has epilepsy. The interviews covered the trio’s undergraduate experiences. Cochran, McDermott, and Mosley then analyzed the trio’s answers using their newly developed “Critical Disability Physics Identity” framework.

Mar 2, 2024

WileyK_TheStreamOfConsciousnessAndPersonalIdentity_slides_2020 (1).pdf

Posted by in category: neuroscience

Keith wiley stream of consciousness and identity.


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Mar 2, 2024

Comparative connectomics of dauer reveals developmental plasticity

Posted by in category: neuroscience

How the dauer, an alternative developmental stage in nematodes, exhibits distinct behavioral traits remains unclear. Here, the authors reveal the neural circuitry underlying these distinctions by reconstructing the dauer connectome and comparing it with other stages.

Mar 2, 2024

Neurosurgeon gets virtual avatar for brain surgery training

Posted by in categories: augmented reality, biotech/medical, neuroscience, virtual reality

MIT and an AR/VR startup join forces to pioneer a new era in medical training. Dive into the future as a virtual avatar of a top neurosurgeon mentors learners globally.

Mar 2, 2024

Brain stimulation poised to move from last resort to frontline treatment

Posted by in categories: biotech/medical, neuroscience

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Even so, proponents say that TMS and other noninvasive brain-stimulation methods—which include updated forms of electroconvulsive therapy (ECT) and transcranial direct-current stimulation—have yet to achieve their full potential, both as research tools and as clinical treatments for a range of neurological conditions. To get there, researchers want to fully understand the biological mechanisms behind these techniques, along with finding more rigorous ways to test them in the lab, all with a view toward making treatments more tailored and reliably successful. With its demonstrated benefits and lack of serious side effects, Colleen Loo, a neurostimulation pioneer at the University of New South Wales, says, “there’s no reason TMS can’t be used as a frontline treatment” for major depression.

Mar 2, 2024

Meet Mark. He’s one of the few people in the world with a brain-computer interface

Posted by in categories: biotech/medical, computing, neuroscience

CNN Chief Medical Correspondent Dr. Sanjay Gupta watches a brain-computer interface in action and explores the technology that is allowing humans to control computers using only the neural activity in their brains.

Mar 2, 2024

“There’s a lot of concern”: Doctors Demand Full Transparency After Being Frightened by Elon Musk’s Brain Chip Tech Neuralink

Posted by in categories: biotech/medical, computing, Elon Musk, neuroscience

Elon Musk has done a lot of things in his life but doctors demand answers from Musk after his Neuralink tech scared them.

Mar 1, 2024

A Randomized, Controlled Clinical Trial Demonstrates Improved Cognitive Function in Senior Dogs Supplemented with a Senolytic and NAD+ Precursor Combination

Posted by in categories: biotech/medical, life extension, neuroscience

Aging reversed in dogs face_with_colon_three


Age-related decline in mobility and cognition are associated with cellular senescence and NAD+ depletion in dogs and people. A combination of a novel NAD+ precursor and senolytic, LY-D6/2 was examined in this randomized controlled trial. Seventy dogs were enrolled and allocated into placebo, low or full dose groups. Primary outcomes were change in cognitive impairment measured with the owner-reported Canine Cognitive Dysfunction Rating (CCDR) scale and change in activity measured with physical activity monitors. Fifty-nine dogs completed evaluations at the three-month primary endpoint, and 51 reached the six-month secondary endpoint. There was a significant difference in CCDR score across treatment groups from baseline to the primary endpoint (p=0.02) with the largest decrease in the full dose group. There were no significant differences between groups in changes in measured activity. However, the proportion of dogs that improved in frailty and owner-reported activity levels and happiness was higher in the full dose group than other groups. Adverse events occurred equally across groups. All groups showed improvement in cognition, frailty, and activity suggesting placebo effect and benefits of trial participation. We conclude that LY-D6/2 significantly improves owner-assessed cognitive function and may have broader effects on frailty, activity and happiness as reported by owners.

The authors have declared no competing interest.

Mar 1, 2024

Insomnia: Insomnia is a common sleep disorder

Posted by in category: neuroscience

Insomnia is a common sleep disorder. If you have it, you may have trouble falling asleep, staying asleep, or both. As a result, you may get too little sleep or have poor-quality sleep. You may not feel refreshed when you wake up.

What are the types of insomnia?

Insomnia can be acute (short-term) or chronic (ongoing). Acute insomnia is common. Common causes include stress at work, family pressures, or a traumatic event. It usually lasts for days or weeks.

Mar 1, 2024

‘Can control computer mouse with thoughts’: Says Elon Musk on Neuralink’s first human patient as he successfully recovers

Posted by in categories: biotech/medical, computing, Elon Musk, neuroscience

Elon Musk disclosed that a human patient implanted with a brain chip from the company has fully recovered and demonstrated the ability to control a computer mouse using their thoughts.