Post List

Neuroscience posts

(Modify Search »)

  • October 23, 2016
  • 02:57 PM

Your BMI might affect your brain function

by Dr. Jekyll in Lunatic Laboratories

There are plenty of reasons it's important to maintain a healthy weight, and now you can add one more to the list: It may be good for your brain. Researchers have found that having a higher body mass index, or BMI, can negatively impact cognitive functioning in older adults.

... Read more »

  • October 22, 2016
  • 06:00 AM

Does Effect Size Matter for fMRI?

by Neuroskeptic in Neuroskeptic_Discover

fMRI researchers should care about (and report) the size of the effects that they study, according to a new Neuroimage paper from NIMH researchers Gang Chen and colleagues. It's called Is the statistic value all we should care about in neuroimaging?. The authors include Robert W. Cox, creator of the popular fMRI analysis software AFNI.

Chen et al. explain the purpose of their paper:
Here we address an important issue that has been embedded within the neuroimaging community for a long tim... Read more »

  • October 20, 2016
  • 01:51 PM

Oligodendrocyte selectively myelinates a particular set of axons in the white matter

by Dr. Jekyll in Lunatic Laboratories

There are three kinds of glial cells in the brain, oligodendrocyte, astrocyte and microglia. Oligodendrocytes myelinate neuronal axons to increase conduction velocity of neuronal impulses. A Japanese research team found a characteristic feature of oligodendrocytes that selectively myelinate a particular set of neuronal axons.

... Read more »

  • October 16, 2016
  • 02:18 PM

Female brains change in sync with hormones

by Dr. Jekyll in Lunatic Laboratories

Although it has already been known for some time that the brain does not remain rigid in its structure even in adulthood, scientists have recently made a surprising discovery. The brain is not only able to adapt to changing conditions in long-term processes, but it can do this every month.

... Read more »

Barth, C., Steele, C., Mueller, K., Rekkas, V., Arélin, K., Pampel, A., Burmann, I., Kratzsch, J., Villringer, A., & Sacher, J. (2016) In-vivo Dynamics of the Human Hippocampus across the Menstrual Cycle. Scientific Reports, 32833. DOI: 10.1038/srep32833  

  • October 15, 2016
  • 03:26 PM

Untangling a cause of memory loss in neurodegenerative diseases

by Dr. Jekyll in Lunatic Laboratories

Tauopathies are a group of neurodegenerative disorders, including Alzheimer's disease that are characterized by the deposition of aggregates of the tau protein inside brain cells. A new study reveals that the cutting of tau by an enzyme called caspase-2 may play a critical role in the disordered brain circuit function that occurs in these diseases.

... Read more »

Zhao, X., Kotilinek, L., Smith, B., Hlynialuk, C., Zahs, K., Ramsden, M., Cleary, J., & Ashe, K. (2016) Caspase-2 cleavage of tau reversibly impairs memory. Nature Medicine. DOI: 10.1038/nm.4199  

  • October 15, 2016
  • 05:47 AM

Know your brain: Suprachiasmatic nucleus

by neurosci in Neuroscientifically Challenged

Where is the suprachiasmatic nucleus?

the suprachiasmatic nucleus is represented by a small green area within the hypothalamus (indicated by red arrow).

The suprachiasmatic nuclei are two small, paired nuclei that are found in the hypothalamus. Each suprachiasmatic nucleus only contains approximately 10,000 neurons. The nuclei rest on each side of the third ventricle, just above the optic chiasm. The location provides the rationale for........ Read more »

  • October 14, 2016
  • 11:50 AM

Pathways to Substance Use and Abuse

by William Yates, M.D. in Brain Posts

Neuroscience medicine clinicians encounter patients every day who have both a mental and substance use disorder.This co-occurrence, or comorbidity, complicates diagnosis, treatment and outcome.The exact mechanism for this comorbidity issue is unclear.A recent study out of Washington University in St. Louis and King's College London provides some insight into this comorbidity issue.They examined participants in the Study of Addiction: Genetics and Environment (SAGE). These subjects provided genet........ Read more »

Carey CE, Agrawal A, Bucholz KK, Hartz SM, Lynskey MT, Nelson EC, Bierut LJ, & Bogdan R. (2016) Associations between Polygenic Risk for Psychiatric Disorders and Substance Involvement. Frontiers in genetics, 149. PMID: 27574527  

  • October 13, 2016
  • 11:37 AM

Social Priming - Does It Work After All?

by Neuroskeptic in Neuroskeptic_Discover

"Social priming" has been the punching-bag of psychology for the past few years.

The term "social priming" refers to the idea that subtle cues can exert large, unconscious influences on human behaviour. The classic example of a social priming effect was the "professor priming" study in which volunteers who completed a task in which they had to describe a typical professor, subsequently performed better on a general knowledge task. In other words, as the authors put it, "priming a stereotype o... Read more »

Payne BK, Brown-Iannuzzi JL, & Loersch C. (2016) Replicable effects of primes on human behavior. Journal of experimental psychology. General, 145(10), 1269-1279. PMID: 27690509  

  • October 10, 2016
  • 11:54 AM

Alzheimer's Disease: Atrophy Pattern and Symptoms

by William Yates, M.D. in Brain Posts

Memory impairment is a key symptom of Alzheimer's dementia common to patients with the condition.However, additional cognitive and behavioral symptoms vary between patients with a clinical and pathological diagnosis of Alzheimer's disease.A key area of research is focused on understanding factors that contribute to symptom variability in Alzheimer's disease.A team of researchers from Singapore and Harvard Medical School recently published an important study on this topic.They analyzed structural........ Read more »

Zhang X, Mormino EC, Sun N, Sperling RA, Sabuncu MR, Yeo BT, & Alzheimer’s Disease Neuroimaging Initiative. (2016) Bayesian model reveals latent atrophy factors with dissociable cognitive trajectories in Alzheimer's disease. Proceedings of the National Academy of Sciences of the United States of America. PMID: 27702899  

  • October 10, 2016
  • 11:31 AM

Are There Too Few Jobs In Neuroscience?

by Neuroskeptic in Neuroskeptic_Discover

Is European neuroscience facing a jobs crisis? Writing in The Lancet Neurology, Mario Bonato and Esperanza Jubera-Garcia sound the alarm:

As young European neuroscientists, we want to bring attention to the dramatic absence of professional long-term opportunities that researchers are facing mostly, although not exclusively, in the south of Europe.

In the past few years, young scientists from several European countries have been forced to move to other countries, or to quit research a... Read more »

  • October 9, 2016
  • 03:07 PM

New sensor material could enable more sensitive readings of biological signals

by Dr. Jekyll in Lunatic Laboratories

High-tech prosthetics, computers that are controlled by thought, the ability to walk or even move again, these are just a few of the promises of technology. Unfortunately, while the tech is -- mostly -- up to the challenge, getting the biology side of things to cooperate has been difficult at best, but that could change. Now, scientists have created a material that could make reading biological signals, from heartbeats to brainwaves, much more sensitive.

... Read more »

Giovannitti, A., Nielsen, C., Sbircea, D., Inal, S., Donahue, M., Niazi, M., Hanifi, D., Amassian, A., Malliaras, G., Rivnay, J.... (2016) N-type organic electrochemical transistors with stability in water. Nature Communications, 13066. DOI: 10.1038/ncomms13066  

  • October 8, 2016
  • 02:31 PM

Concentrating on the social billions

by Dr. Jekyll in Lunatic Laboratories

Using online social media does not lead to long-term problems with our ability to concentrate, according to new research. We are social animals, so it is really no surprise that billions of us now use online tools to communicate, educate and inform each other. The advent of social media and social networking has nevertheless been phenomenally rapid.

... Read more »

Doss, S., Carstens, D., & Kies, S. (2016) Episodic social media impact on users. International Journal of Social Media and Interactive Learning Environments, 4(3), 273. DOI: 10.1504/IJSMILE.2016.079505  

  • October 7, 2016
  • 01:57 PM

First demonstration of brain-inspired device to power artificial systems

by Dr. Jekyll in Lunatic Laboratories

New research has demonstrated that a nanoscale device, called a memristor, could be used to power artificial systems that can mimic the human brain. Artificial neural networks (ANNs) exhibit learning abilities and can perform tasks which are difficult for conventional computing systems, such as pattern recognition, on-line learning and classification.

... Read more »

  • October 6, 2016
  • 01:48 PM

Mental illness genetically linked to drug use and misuse

by Dr. Jekyll in Lunatic Laboratories

There are many reports of drug use leading to mental health problems, and we all know of someone having a few too many drinks to cope with a bad day. Many people who are diagnosed with a mental health disorder indulge in drugs, and vice versa. As severity of both increase, problems arise and they become more difficult to treat. But why substance involvement and psychiatric disorders often co-occur is not well understood.

... Read more »

Carey, C., Agrawal, A., Bucholz, K., Hartz, S., Lynskey, M., Nelson, E., Bierut, L., & Bogdan, R. (2016) Associations between Polygenic Risk for Psychiatric Disorders and Substance Involvement. Frontiers in Genetics. DOI: 10.3389/fgene.2016.00149  

  • October 5, 2016
  • 02:14 PM

Scientists find new path in brain to ease depression

by Dr. Jekyll in Lunatic Laboratories

Scientists have discovered a new pathway in the brain that can be manipulated to alleviate depression. The pathway offers a promising new target for developing a drug that could be effective in individuals for whom other antidepressants have failed. New antidepressant options are important because a significant number of patients don't adequately improve with currently available antidepressant drugs.

... Read more »

  • October 4, 2016
  • 05:36 PM

Revising the meaning of 'prion'

by Dr. Jekyll in Lunatic Laboratories

A team of scientists are redefining what it means to be a prion--a type of protein that can pass heritable traits from cell to cell by its structure instead of by DNA. Although prions are infamous for causing Creutzfeldt-Jakob disease, fatal familial insomnia, and bovine spongiform encephalopathy, commonly known as mad cow's disease, the present study indicates that prions identified in yeast, and possibly in plants, and other organisms may be beneficial.

... Read more »

Chakrabortee, S., Byers, J., Jones, S., Garcia, D., Bhullar, B., Chang, A., She, R., Lee, L., Fremin, B., Lindquist, S.... (2016) Intrinsically Disordered Proteins Drive Emergence and Inheritance of Biological Traits. Cell. DOI: 10.1016/j.cell.2016.09.017  

  • October 3, 2016
  • 05:05 PM

Can Electricity Stimulate Your Brain To Work Faster?

by Neuroskeptic in Neuroskeptic_Discover

A widely-used 'brain stimulation' tool has no effect on the speed of the brain's responses, according to a new study from Australian neuroscientists Jared Horvath et al.

The technique of transcranial Direct Current Stimulation (tDCS) involves attaching electrodes to the scalp and applying a weak electrical current. This current is thought to flow through the brain and alter neural activity in areas close to the electrodes. tDCS is a popular experimental method in neuroscience, and there's a... Read more »

  • October 3, 2016
  • 01:54 PM

For women, caffeine could be ally in warding off dementia

by Dr. Jekyll in Lunatic Laboratories

Among a group of older women, self-reported caffeine consumption of more than 261 mg per day was associated with a 36 percent reduction in the risk of incident dementia over 10 years of follow-up. This level is equivalent to two to three 8-oz cups of coffee per day, five to six 8-oz cups of black tea, or seven to eight 12-ounce cans of cola.

... Read more »

Driscoll, I., Shumaker, S., Snively, B., Margolis, K., Manson, J., Vitolins, M., Rossom, R., & Espeland, M. (2016) Relationships Between Caffeine Intake and Risk for Probable Dementia or Global Cognitive Impairment: The Women’s Health Initiative Memory Study. The Journals of Gerontology Series A: Biological Sciences and Medical Sciences. DOI: 10.1093/gerona/glw078  

  • October 3, 2016
  • 12:08 PM

The 7 Most Interesting Extrasolar Systems.

by Jeffrey Daniels in United Academics

Beyond the well-known Solar System, there is an immensity of other unique systems... Read more »

Johanna K. Teske, Stephen A. Shectman, Steve S. Vogt, Matías Díaz, R. Paul Butler, Jeffrey D. Crane, Ian B. Thompson, & Pamela Arriagada. (2016) The Magellan PFS Planet Search Program: Radial Velocity and Stellar Abundance Analyses of the 360 AU, Metal-Poor Binary "Twins" HD 133131A . Astronomical Journal,. arXiv: 1608.06216v2

Orosz, J., Welsh, W., Carter, J., Fabrycky, D., Cochran, W., Endl, M., Ford, E., Haghighipour, N., MacQueen, P., Mazeh, T.... (2012) Kepler-47: A Transiting Circumbinary Multiplanet System. Science, 337(6101), 1511-1514. DOI: 10.1126/science.1228380  

R. Di Stefano, & A. Ray. (2016) Globular Clusters as Cradles of Life and Advanced Civilizations. ASTROPHYSICAL JOURNAL , 827(1). arXiv: 1601.03455v1

Marcelo Tucci Maia, Jorge Melendez, & Ivan Ramirez. (2014) High precision abundances in the 16 Cyg binary system: a signature of the rocky core in the giant planet. ASTROPHYSICAL JOURNAL LETTERS , 790(2). arXiv: 1407.4132v1

Anglada-Escudé, G., Amado, P., Barnes, J., Berdiñas, Z., Butler, R., Coleman, G., de la Cueva, I., Dreizler, S., Endl, M., Giesers, B.... (2016) A terrestrial planet candidate in a temperate orbit around Proxima Centauri. Nature, 536(7617), 437-440. DOI: 10.1038/nature19106  

Borucki, W., Agol, E., Fressin, F., Kaltenegger, L., Rowe, J., Isaacson, H., Fischer, D., Batalha, N., Lissauer, J., Marcy, G.... (2013) Kepler-62: A Five-Planet System with Planets of 1.4 and 1.6 Earth Radii in the Habitable Zone. Science, 340(6132), 587-590. DOI: 10.1126/science.1234702  

Stephen R. Kane, & Dawn M. Gelino. (2014) On the Inclination and Habitability of the HD 10180 System. ASTROPHYSICAL JOURNAL, 792(2). arXiv: 1408.4150v1

  • October 3, 2016
  • 10:56 AM

Robin Williams and Lewy Body Disease

by William Yates, M.D. in Brain Posts

In a post last week, I highlighted a recent study examining clinical issues in the diagnosis of Lewy body dementia (LBD).This study examined differentiating clinical and neuropsychological factors between LBD, Alzheimer's dementia and Parkinson's disease.You can access this post by clicking HERE.This topic received significant attention following the description of comedian Robin Williams' last years by his wife in the journal Neurology.Robin Williams suffered from LBD and like many, his diagnos........ Read more »

Williams SS. (2016) The terrorist inside my husband's brain. Neurology, 87(13), 1308-1311. info:/

join us!

Do you write about peer-reviewed research in your blog? Use to make it easy for your readers — and others from around the world — to find your serious posts about academic research.

If you don't have a blog, you can still use our site to learn about fascinating developments in cutting-edge research from around the world.

Register Now

Research Blogging is powered by SMG Technology.

To learn more, visit