Magnetic stimulation to improve visual perception

(Medical Xpress) — Using transcranial magnetic stimulation (TMS), an international team led by French researchers from the Centre de Recherche de l’Institut du Cerveau (CNRS) has succeeded in enhancing the visual abilities of a group of healthy subjects. Following stimulation of an area of the brain’s right hemisphere involved in perceptual awareness and in orienting spatial attention, the subjects appeared more likely to perceive a target appearing on a screen. This work, published in the journal PLoS ONE, could lead to the development of novel rehabilitation techniques for certain visual disorders. In addition, it could help improve the performance of individuals whose tasks require very high precision.

Hands-on research: Neuroscientists show how brain responds to sensual caress

A nuzzle of the neck, a stroke of the wrist, a brush of the knee—these caresses often signal a loving touch, but can also feel highly aversive, depending on who is delivering the touch, and to whom. Interested in how the brain makes connections between touch and emotion, neuroscientists at the California Institute of Technology (Caltech) have discovered that the association begins in the brain’s primary somatosensory cortex, a region that, until now, was thought only to respond to basic touch, not to its emotional quality.