Title |
Medial prefrontal activity during delay period contributes to learning of a working memory task
|
---|---|
Published in |
Science, October 2014
|
DOI | 10.1126/science.1256573 |
Pubmed ID | |
Authors |
Ding Liu, Xiaowei Gu, Jia Zhu, Xiaoxing Zhang, Zhe Han, Wenjun Yan, Qi Cheng, Jiang Hao, Hongmei Fan, Ruiqing Hou, Zhaoqin Chen, Yulei Chen, Chengyu T Li |
Abstract |
Cognitive processes require working memory (WM) that involves a brief period of memory retention known as the delay period. Elevated delay-period activity in the medial prefrontal cortex (mPFC) has been observed, but its functional role in WM tasks remains unclear. We optogenetically suppressed or enhanced activity of pyramidal neurons in mouse mPFC during the delay period. Behavioral performance was impaired during the learning phase but not after the mice were well trained. Delay-period mPFC activity appeared to be more important in memory retention than in inhibitory control, decision-making, or motor selection. Furthermore, endogenous delay-period mPFC activity showed more prominent modulation that correlated with memory retention and behavioral performance. Thus, properly regulated mPFC delay-period activity is critical for information retention during learning of a WM task. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 6 | 26% |
China | 1 | 4% |
Ireland | 1 | 4% |
Australia | 1 | 4% |
Netherlands | 1 | 4% |
United Kingdom | 1 | 4% |
Unknown | 12 | 52% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 15 | 65% |
Scientists | 6 | 26% |
Practitioners (doctors, other healthcare professionals) | 1 | 4% |
Science communicators (journalists, bloggers, editors) | 1 | 4% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 7 | 1% |
Germany | 5 | <1% |
Japan | 3 | <1% |
France | 2 | <1% |
China | 2 | <1% |
Italy | 1 | <1% |
Australia | 1 | <1% |
United Kingdom | 1 | <1% |
Korea, Republic of | 1 | <1% |
Other | 2 | <1% |
Unknown | 512 | 95% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 129 | 24% |
Researcher | 109 | 20% |
Student > Bachelor | 57 | 11% |
Student > Master | 55 | 10% |
Student > Doctoral Student | 26 | 5% |
Other | 77 | 14% |
Unknown | 84 | 16% |
Readers by discipline | Count | As % |
---|---|---|
Neuroscience | 186 | 35% |
Agricultural and Biological Sciences | 140 | 26% |
Psychology | 43 | 8% |
Biochemistry, Genetics and Molecular Biology | 23 | 4% |
Medicine and Dentistry | 19 | 4% |
Other | 32 | 6% |
Unknown | 94 | 18% |