Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2014 Dec 24;4(1):1–16. doi: 10.3390/biology4010001

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© 2014 by the authors; licensee MDPI, Basel, Switzerland.

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/).

PMC Copyright notice

Increase in frontal midline theta (FMtheta) activity with increasing cognitive demand. (A) Headmap depicting significantly higher FMtheta activity over medial frontal electrode positions during semantic manipulation (SEM) of information in working memory (WM) than during the simple retention (RET) thereof; (B) Line chart depicting the significant amplitude difference between the retention (RET) and the semantic manipulation (SEM) conditions. Error bars show standard errors; (C) Standardised sLORETA cortex depicting areas with significantly higher FMtheta activity during the semantic manipulation (SEM) of information in working memory than the simple retention (RET) thereof; (D) Depiction of cortical areas on source level which show significantly stronger theta activity during the semantic manipulation (SEM) of information in working memory than during the backwards manipulation (BACK) thereof. Warm colours depict increase in activity and cold colours depict activity decrease.