Neuroscience – BrainiYak

Category Archives: Neuroscience

Small Mayo Clinic investigation demonstrates that changes in blood pressure and heart rate may prove to be more reliable indicators of concussion severity than self-reporting 0

© 2013 Peter Free Citation — to press release Newsroom, Mayo Clinic Researchers Develop Test to Gauge Severity of Concussions, Mayo Clinic (19 March 2013) Findings From the press release: “This has the potential to change the way we approach concussion patients,” says David Dodick, M.D., a neurologist and director of the Mayo Clinic Concussion [...]

Categories: Medicine,Neuroscience,Science

Tagged: autonomic system, Bert Vargas, blood pressure, Brent Goodman, concussion, David Dodick, dementia, Gauge Severity of Concussions, heart rate, Mayo Clinic, traumatic brain injury

Published:: 21 March 2013 – 10:40
Author:: By BrainiYak

A new paper suggests that one of the most influential psychology paper of all time was grossly wrong, when it reported that the human brain could hold and process 7 chunks of information simultaneously in short term memory — but the new paper, which reduces the graspable elements to only 4, does not even provide an abstract, and it has a completely unrevealing title 0

Citation — to the upstart paper Gordon Parker, Acta is a four-letter word, Acta Psychiatrica Scandinavica 126(6): 476–478 (December 2012) Citation — to the long-standing paper George A. Miller, The magical number seven, plus or minus two: some limits on our capacity for processing information, Psychology Review 63(2): 81-97, doi: 10.1037/h0043158 (March 1956) Citation — [...]

Categories: Neuroscience,Psychiatry,Psychology,Science,Science Journalism

Tagged: Acta is a four-letter word, Acta Psychiatrica Scandinavica, brain, chunk, four, George A. Miller, Gordon Parker, information, magical number, seven, short-term memory, storage capacity, University of New South Wales

Published:: 28 November 2012 – 10:11
Author:: By BrainiYak

Neural networks dedicated to empathy and analysis repress each other in our brains — which may explain our vulnerability to scams that play on our empathy for other people 0

Citation — to the study Anthony I. Jack, Abigail Dawson, Katelyn Begany, Regina L. Leckie, Kevin Barry, Angela Ciccia, and Abraham Snyder, fMRI reveals reciprocal inhibition between social and physical cognitive domains, NeuroImage, doi.org/10.1016/j.neuroimage.2012.10.061 (in press, early online publication, 27 October 2012) Citation — to the press release Case Western Reserve University, Empathy represses analytic [...]

Categories: Neuroscience,Psychology,Science

Tagged: Abigail Dawson, Abraham Snyder, Angela Ciccia, Anthony I. Jack, brain physiology, brain scans, cognitive domains, empathetic and analytic thinking, empathy, fMRI, functional MRI, Katelyn Begany, Kevin Barry, network of neurons, physiological constraint, reciprocal inhibition, Regina L. Leckie

Published:: 30 October 2012 – 18:26
Author:: By BrainiYak

Nothing new here, but interesting nonetheless — our brains are wired to deceive us — an experiment using mirrors to cause erroneously perceived directional torque, even when actually holding the weights in question — and a reminder about illusion’s deeper implications 0

Citation — to study Yangqing Xu, Shélan O’Keefe, Satoru Suzuki, and Steven L Franconeri, Visual influence on haptic torque perception, Perception 41(7): 862-870 (2012) Citation — to press release Hilary Hurd Anyaso, When Your Eyes Tell Your Hands What to Think, Northwestern University (28 September 2012) Findings From the press release: “When you pick up [...]

Categories: Neuroscience,Psychology,Science

Tagged: brain, haptic torque, Hilary Hurd Anyaso, illusion, mirrors, optical illusions, perception, Satoru Suzuki, self-deception, Shélan O’Keefe, Steven L Franconeri, visual information, Yangqing Xu

Published:: 28 September 2012 – 16:23
Author:: By BrainiYak

Chinchilla animal study indicates that the reduced ability to distinguish sound for those with hearing loss is much more pronounced in noisy environments — and a comment about scientific method 0

Citation — to study Kenneth S. Henry and Michael G. Heinz, Diminished temporal coding with sensorineural hearing loss emerges in background noise, Nature Neuroscience, doi:10.1038/nn.3216 (09 September 2012) Citation — to press release Amy Patterson Neubert, Study: Hearing impaired ears hear differently in noisy environments, Purdue University (10 September 2012) Findings As described by Amy [...]

Categories: Audiology,Neuroscience,Public Health

Tagged: Amy Patterson Neubert, auditory, background noise, chinchilla, diminshed temporaral coding, ears, hearing impaired, hearing loss, Kenneth S. Henry, Michael G. Heinz, noisy environments, sensorineural

Published:: 11 September 2012 – 16:03
Author:: By BrainiYak

Heavy alcohol drinking may predispose mice to anxiety disorders, including post-traumatic stress disorder (PTSD) — by “remodeling” neurons in the brain’s prefrontal cortex 0

Citation — to study Andrew Holmes, Paul J Fitzgerald, Kathryn P MacPherson, Lauren DeBrouse, Giovanni Colacicco, Shaun M Flynn, Sophie Masneuf, Kristen E Pleil, Chia Li, Catherine A Marcinkiewcz, Thomas L Kash, Ozge Gunduz-Cinar, and Marguerite Camp, Chronic alcohol remodels prefrontal neurons and disrupts NMDAR-mediated fear extinction encoding, Nature Neuroscience, doi:10.1038/nn.3204 (02 September 2012) Citation [...]

Categories: Neuroscience,Psychiatry,Psychology,Public Health

Tagged: alcohol abuse, alcoholics, Andrew Holmes, anxiety, brain, Catherine A Marcinkiewcz, Chia Li, chronic intermittent ethanol, CIE, Giovanni Colacicco, heavy drinking, Kathryn P MacPherson, Kristen E Pleil, Lauren DeBrouse, Marguerite Camp, medical prefrontal cortex, mice, mPFC, NMDA, NMDA GluN1 receptors, NMDAR-mediated fear extinction, Ozge Gunduz-Cinar, Paul J Fitzgerald, post-traumatic stress disorder, prefrontal cortex, prefrontal neurons, PTSD, rewiring, Shaun M Flynn, Sophie Masneuf, Thomas L Kash

Published:: 4 September 2012 – 15:08
Author:: By BrainiYak

Study reports that Alzheimer’s disease appears to deteriorate women’s cognitive functions more rapidly than men’s — but I find the small meta-analysis less than convincing 0

Citation Karen Irvine, Keith R Laws, Tim M Gale, and Tejinder K Kondel, Greater cognitive deterioration in women than men with Alzheimer’s disease: A meta analysis, Journal of Clinical and Experimental Neuropsychology, DOI:10.1080/13803395.2012.712676 (23 August 2012) How this study was done The paper’s authors reviewed 15 studies of Alzheimer’s disease, extracting data about verbal and [...]

Categories: Medicine,Neuroscience,Psychiatry

Tagged: AD, advanced age, Alzheimer's disease, cognitive deterioration, cognitive domains, dementia, episodic memory, gender disparity, Karen Irvine, Keith R Laws, semantic, Tejinder K Kondel, Tim M Gale, verbal memory, visuospatial

Published:: 24 August 2012 – 14:58
Author:: By BrainiYak

Protein domain “DUF1220” copy numbers, predominantly found on human chromosome 1’s long (“q”) arm, appear to control brain size — with higher numbers appearing in people and sequentially fewer, “down” through the great apes and other mammals 0

Citation — to study Laura J. Dumas, Majesta S. O’Bleness, Jonathan M. Davis, C. Michael Dickens, Nathan Anderson, J.G. Keeney, Jay Jackson, Megan Sikela, Armin Raznahan, Jay Giedd, Judith Rapoport, Sandesh S.C. Nagamani, Ayelet Erez, Nicola Brunetti-Pierri, Rachel Sugalski, James R. Lupski, Tasha Fingerlin, Sau Wai Cheung, and James M. Sikela, DUF1220-Domain Copy Number Implicated [...]

Categories: Evolution,Medicine,Neuroscience

Tagged: 1q21, Armin Raznahan, Ayelet Erez, Brain-Size Pathology and Evolution, C. Michael Dickens, chromosome, Dan Meyers, DUF1220-Domain Copy Number, evolutionary increase, human brain, J.G. Keeney, James M. Sikela, James R. Lupski, Jay Giedd, Jay Jackson, Jonathan M. Davis, Judith Rapoport, Laura J. Dumas, Majesta S. O’Bleness, Megan Sikela, Nathan Anderson, Nicola Brunetti-Pierri, Rachel Sugalski, Sandesh S.C. Nagamani, Sau Wai Cheung, Tasha Fingerlin

Published:: 20 August 2012 – 13:34
Author:: By BrainiYak

A grossly misleading headline and paragraph from Cell Press — were apparently distorted, so as to get people to read a less than surprising research article in its sister publication, Current Biology 0

Citation — to the study Timothy T. Brown, Joshua M. Kuperman, Yoonho Chung, Matthew Erhart, Connor McCabe, Donald J. Hagler, Vijay K. Venkatraman, Natacha Akshoomoff, David G. Amaral, Cinnamon S. Bloss, B.J. Casey, Linda Chang, Thomas M. Ernst, Jean A. Frazier, Jeffrey R. Gruen, Walter E. Kaufmann, Tal Kenet, David N. Kennedy, Sarah S. Murray, [...]

Categories: Medicine,Neuroscience,Science,Science Journalism

Tagged: Anders M. DaleSee, B.J. Casey, brain, brain development, brain scans, children, Cinnamon S. Bloss, composite metric morphology, Connor McCabe, cross-validated nonlinear modeling, David G. Amaral, David N. Kennedy, development, Donald J. Hagler, Elizabeth R. Sowell, Jean A. Frazier, Jeffrey R. Gruen, Joshua M. Kuperman, Linda Chang, Matthew Erhart, maturation, multimodal MRI, multisite MRI, Natacha Akshoomoff, Neuroanatomical Assessment of Biological Maturity, Sarah S. Murray, Tal Kenet, Terry L. Jernigan, Thomas M. Ernst, Timothy T. Brown, Vijay K. Venkatraman, Walter E. Kaufmann, Yoonho Chung

Published:: 16 August 2012 – 18:43
Author:: By BrainiYak

Rats exhibit compulsive behavior when opposite hemisphere communication between the ventral portions of the hippocampus and prefrontal cortices are cut — implications for human illness? 0

Citation Yogita Chudasama, Victoria M. Doobay, and Yuchen Liu, Hippocampal-Prefrontal Cortical Circuit Mediates Inhibitory Response Control in the Rat, Journal of Neuroscience 32(32): 10915-10924; doi: 10.1523/JNEUROSCI.1463-12.2012 (08 August 2012) Method and findings From the abstract: We investigated the interdependent function of the ventral hippocampus (vHC) and ventral prefrontal cortex (vPFC) in visuospatial attention and inhibitory [...]

Categories: Medicine,Neuroscience,Psychiatry,Science

Tagged: bihemispheric disruption, compulsive behavior, Hippocampal-Prefrontal Cortical Circuit, hippocampus, Inhibitory Response Control, ipsilateral lesions, prefrontal cortex, rat, unilateral lesions, vHC, Victoria M. Doobay, visuospatial attention, vPFC, Yogita Chudasama, Yuchen Liu

Published:: 15 August 2012 – 11:15
Author:: By BrainiYak

BrainiYak

Category Archives: Neuroscience

Small Mayo Clinic investigation demonstrates that changes in blood pressure and heart rate may prove to be more reliable indicators of concussion severity than self-reporting 0

Neural networks dedicated to empathy and analysis repress each other in our brains — which may explain our vulnerability to scams that play on our empathy for other people 0

Nothing new here, but interesting nonetheless — our brains are wired to deceive us — an experiment using mirrors to cause erroneously perceived directional torque, even when actually holding the weights in question — and a reminder about illusion’s deeper implications 0

Chinchilla animal study indicates that the reduced ability to distinguish sound for those with hearing loss is much more pronounced in noisy environments — and a comment about scientific method 0

Heavy alcohol drinking may predispose mice to anxiety disorders, including post-traumatic stress disorder (PTSD) — by “remodeling” neurons in the brain’s prefrontal cortex 0

Study reports that Alzheimer’s disease appears to deteriorate women’s cognitive functions more rapidly than men’s — but I find the small meta-analysis less than convincing 0

Protein domain “DUF1220” copy numbers, predominantly found on human chromosome 1’s long (“q”) arm, appear to control brain size — with higher numbers appearing in people and sequentially fewer, “down” through the great apes and other mammals 0

A grossly misleading headline and paragraph from Cell Press — were apparently distorted, so as to get people to read a less than surprising research article in its sister publication, Current Biology 0

Rats exhibit compulsive behavior when opposite hemisphere communication between the ventral portions of the hippocampus and prefrontal cortices are cut — implications for human illness? 0

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