First Glimpse of Brain Circuit that Helps Experience to Shape Perception

Scientists at Cold Spring Harbor Laborotory have demonstrated that have demonstrated a method of observing how experiences shape sensory information in awake animals. The team was able to measure the activity of a group of inhibitory neurons that links the odor-sensing area of the brain with brain areas responsible for thought and cognition. This connection provides feedback so that memories and experiences can alter the way smells are interpreted.

The method works by measuring the activity of a group of inhibitory neurons in an area of the brain responsible for memory and recognition. This connection provides feedback so that memories and experiences can alter the way smells are interpreted. These neurons are called granule cells. Granule cells relay the information they receive from neurons involved in memory and cognition back to the olfactory bulb. There, the granule cells inhibit the neurons that receive sensory inputs, causing the perception of the stimulus to be changed based on experience.

With this knowledge, one day it may be possible to alter these inhibitor cells to treat PTSD patients and those with memory and association disorders, however it is also possible to  alter how people respond to different stimulus, changing them on a fundamental level. Is this science dangerous, or is it worth pursuing for the potential benefits?

NOS themes
Science is collaborative- A team of scientists worked on the study
Role of Motivation- They want to use this information to treat PTSD patients

http://www.sciencedaily.com/releases/2014/03/140302143634.htm