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Portable Brain Mapping Device Allows Researchers to See Where Memory Fails Student Veterans

Read the full article Portable Brain Mapping Device Allows Researchers to See Where Memory Fails Student Veterans at NeuroscienceNews.com.

UT Arlington researchers have successfully used a portable brain-mapping device to show limited prefrontal cortex activity among student veterans with Post Traumatic Stress Disorder when they were asked to recall information from simple memorization tasks.

The research is in NeuroImage:Clinical. (full open access)

Research: “Prefrontal responses to digit span memory phases in patients with post-traumatic stress disorder (PTSD): A functional near infrared spectroscopy study” by Fenghua Tian, Amarnath Yennu, Alexa Smith-Osborne, F. Gonzalez-Lima, Carol S. North, Hanli Liu in NeuroImage: Clinical. doi:10.1016/j.nicl.2014.05.005

Image: Topographic images of the task-evoked prefrontal activations (derived from Δ[HbO2]) in the control group. First row: mean prefrontal activations (β-maps, in microM) evoked by the digit forward (DF) task in the encoding, maintenance, and retrieval phases. Second row: mean prefrontal activations (β-maps, in microM) evoked by the digit backward (DB) task in the encoding, maintenance, and retrieval phases. Third row: mean differences of activations (β-maps, in microM) between the backward and forward tasks (DB−DF) in the encoding, maintenance, and retrieval phases. Fourth row: t-statistical maps (t-maps) which outline the regions of significant difference (paired t-test, p < 0.05) between the backward and forward tasks in the encoding, maintenance, and retrieval phases. Credit Liu et al/NeuroImage:Clinical.