环亚观天下

联系我们

当前位置:主页 > 环亚观天下 > 环亚观天下

In the fight against depression, researchers turn to mind-re

发布时间:2018-10-04 编辑:K8

ShareTweet

A team of researchers from the University of Southern California (USC) AAA UC San Francisco (UCSF) has mapped the relationsAAA between patterns of activity in the brain and mood variation. Based on these links, the team built an automated ‘decoder’ that can predict changes in a patient’s mood by monitoring their brain activity.

Image via Pixabay

The findings very encouraging — they could lead to new and more effective treatments for mood and anxiety disorders, especially for patients that do not respond to conventional treatments.

Think of a number, any number

While not an actual mind-reading device, the team’s decoder comes pretty close. Its development is a significant step towards novel, closed-loop therapies that use brain stimulation to help treat the millions of patients suffering from debilitating disorders that other avenues of treatment simply fail against.

For the study, the team recruited seven volunteers. All participants were part of a group of epilepsy patients that had previously had electrodes implanted in their brain to monitor their seizures. Electrode implantation and data collection were handled by the UCSF team, led by Edward Chang, Professor of Neurological Surgery. The decoder itself was developed and built by the USC team, led by Assistant Professor and Viterbi Early Career Chair in Electrical Engineering, Maryam Shanechi.

Across multiple days of monitoring, the researchers recorded large-scale signals generated by the participants’ brains. Signals were continuously recorded from all the seven human volunteers. At the same time, they were periodically asked to fill mood questionnaires on a tablet, so the team could track their emotional state over time. The questionnaires were 24-question-strong, each asking the patient to “rate how you feel now” by tapping one of 7 buttons (which were spread on a continuum between fully-negative and full-positive states, e.g., “depressed” and “happy”). A higher score corresponded to a more positive mood state.

本文源自: 环亚娱乐