Different states of priority recruit different neural representations in visual working memory

by Qing Yu, Chunyue Teng, Bradley R. Postle

We used functional magnetic resonance imaging (fMRI) to investigate the neural codes for representing stimulus information held in different states of priority in working memory. Human participants (male and female) performed delayed recall for 2 oriented gratings that could appear in any of several locations. Priority status was manipulated by a retrocue, such that one became the prioritized memory item (PMI) and another the unprioritized memory item (UMI). Using inverted encoding models (IEMs), we found that, in early visual cortex, the orientation of the UMI was represented in a neural representation that was rotated relative to the PMI. In intraparietal sulcus (IPS), we observed the analogous effect for the representation of the location of the UMI. Taken together, these results provide evidence for a common remapping mechanism that may be responsible for representing stimulus identity and stimulus context with different levels of priority in working memory.

Make more money selling and advertising your products and services for free on Ominy market. Click here to start selling now

Paper source
Plos Journal

READ MORE  Time trends and prescribing patterns of opioid drugs in UK primary care patients with non-cancer pain: A retrospective cohort study

Ominy science editory team

A team of dedicated users that search, fetch and publish research stories for Ominy science.

Enable notifications of new posts    OK No thanks