Space Perception

Publication Title: 
Experimental Brain Research

The scientific discovery of novel training paradigms has yielded better understanding of basic mechanisms underlying cortical plasticity, learning and development. This study is a first step in evaluating Tai Chi (TC), the Chinese slow-motion meditative exercise, as a training paradigm that, while not engaging in direct tactile stimulus training, elicits enhanced tactile acuity in long-term practitioners.

Author(s): 
Kerr, Catherine E.
Shaw, Jessica R.
Wasserman, Rachel H.
Chen, Vanessa W.
Kanojia, Alok
Bayer, Thomas
Kelley, John M.
Publication Title: 
Experimental Brain Research

The scientific discovery of novel training paradigms has yielded better understanding of basic mechanisms underlying cortical plasticity, learning and development. This study is a first step in evaluating Tai Chi (TC), the Chinese slow-motion meditative exercise, as a training paradigm that, while not engaging in direct tactile stimulus training, elicits enhanced tactile acuity in long-term practitioners.

Author(s): 
Kerr, Catherine E.
Shaw, Jessica R.
Wasserman, Rachel H.
Chen, Vanessa W.
Kanojia, Alok
Bayer, Thomas
Kelley, John M.
Publication Title: 
Journal of Alzheimer's disease: JAD

We recently found that moderate consumption of two unrelated red wines generate from different grape species, a Cabernet Sauvignon and a muscadine wine that are characterized by distinct component composition of polyphenolic compounds, significantly attenuated the development of Alzheimer's disease (AD)-type brain pathology and memory deterioration in a transgenic AD mouse model. Interestingly, our evidence suggests that the two red wines attenuated AD phenotypes through independent mechanisms.

Author(s): 
Ho, Lap
Chen, Ling Hong
Wang, Jun
Zhao, Wei
Talcott, Stephen T.
Ono, Kenjiro
Teplow, David
Humala, Nelson
Cheng, Alice
Percival, Susan S.
Ferruzzi, Mario
Janle, Elsa
Dickstein, Dara L.
Pasinetti, Giulio Maria
Publication Title: 
Hormones and Behavior

Endocrine disruptors, chemicals that disturb the actions of endogenous hormones, have been implicated in birth defects associated with hormone-dependent development. Phytoestrogens are a class of endocrine disruptors found in plants. In the current study we examined the effects of exposure at various perinatal time periods to genistein, a soy phytoestrogen, on reproductive development and learning in male rats. Dams were fed genistein-containing (5 mg/kg feed) food during both gestation and lactation, during gestation only, during lactation only, or during neither period.

Author(s): 
Ball, Evan R.
Caniglia, Mary Kay
Wilcox, Jenna L.
Overton, Karla A.
Burr, Marra J.
Wolfe, Brady D.
Sanders, Brian J.
Wisniewski, Amy B.
Wrenn, Craige C.
Publication Title: 
The Journal of Neuroscience: The Official Journal of the Society for Neuroscience

Cued spatial attention modulates functionally relevant alpha rhythms in visual cortices in humans. Here, we present evidence for analogous phenomena in primary somatosensory neocortex (SI). Using magnetoencephalography, we measured changes in the SI mu rhythm containing mu-alpha (7-14 Hz) and mu-beta (15-29 Hz) components.

Author(s): 
Jones, Stephanie R.
Kerr, Catherine E.
Wan, Qian
Pritchett, Dominique L.
Hämäläinen, Matti
Moore, Christopher I.
Publication Title: 
Journal of Neurophysiology

Timing is central to many coordinated actions, and the temporal accuracy of central nervous system commands presents an important limit to skilled performance. Using target-oriented throwing in a virtual environment as an example task, this study presents a novel analysis that quantifies contributions of timing accuracy and shaping of hand trajectories to performance. Task analysis reveals that the result of a throw is fully determined by the projectile position and velocity at release; zero error can be achieved by a manifold of position and velocity combinations (solution manifold).

Author(s): 
Cohen, Rajal G.
Sternad, Dagmar
Publication Title: 
Neurotoxicology and Teratology

Over 90% of the U.S. population has detectable bisphenol-A (BPA) in their urine according to recent biomonitoring data. BPA is best known for its estrogenic properties, and most rodent research on the nervous system effects of BPA has focused on determining if chronic exposures during pre- and perinatal development have organizational effects on brain development and behavior. Estrogens also have important impacts on brain and behavior during adulthood, particularly in females during aging, but the impact of BPA on the adult brain is less studied.

Author(s): 
Neese, Steven L.
Bandara, Suren B.
Schantz, Susan L.
Publication Title: 
Neuroscience

Expansion of medical marijuana use in the US and the recently successful decriminalization of recreational marijuana in two States elevates interest in the specific cognitive effects of Δ(9)tetrahydrocannabinol (Δ(9)THC), the major psychoactive constituent of marijuana. Controlled laboratory studies in nonhuman primates provide mixed evidence for specific effects of Δ(9)THC in learning and memory tasks, with a suggestion that frontal-mediated tasks may be the most sensitive.

Author(s): 
Wright, M. J.
Vandewater, S. A.
Parsons, L. H.
Taffe, M. A.
Publication Title: 
Experimental Brain Research

The scientific discovery of novel training paradigms has yielded better understanding of basic mechanisms underlying cortical plasticity, learning and development. This study is a first step in evaluating Tai Chi (TC), the Chinese slow-motion meditative exercise, as a training paradigm that, while not engaging in direct tactile stimulus training, elicits enhanced tactile acuity in long-term practitioners.

Author(s): 
Kerr, Catherine E.
Shaw, Jessica R.
Wasserman, Rachel H.
Chen, Vanessa W.
Kanojia, Alok
Bayer, Thomas
Kelley, John M.
Publication Title: 
Experimental Neurology

Caloric restriction (CR) is a daily reduction of total caloric intake without a decrease in micronutrients or disproportionate reduction of any one dietary component. CR can increase lifespan reliably in a wide range of species and appears to counteract some aspects of the aging process throughout the body. The effects on the brain are less clear, but moderate CR seems to attenuate age-related cognitive decline.

Author(s): 
Adams, Michelle M.
Shi, Lei
Linville, M. Constance
Forbes, M. Elizabeth
Long, Ashley B.
Bennett, Colleen
Newton, Isabel G.
Carter, Christy S.
Sonntag, William E.
Riddle, David R.
Brunso-Bechtold, Judy K.

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