Overlapping brain activity between episodic memory encoding and retrieval: roles of the task-positive and task-negative networks.

ABSTRACT: The notion that the brain is organized into two complementary networks, one that is task-positive and supports externally-oriented processing, and the other that is task-negative and supports internally-oriented processing, has recently attracted increasing attention. The goal of the present study was to investigate involvement of the task-positive and task-negative networks in overlapping activity between episodic memory encoding and retrieval. To this end, we performed a functional MRI study that included both encoding and retrieval tasks. We hypothesized that during the study phase, encoding success activity (remembered > forgotten) involves mainly the task-positive network, whereas encoding failure activity (forgotten > remembered) involves mainly the task-negative network. We also hyp

SUBMITTER: Kim H 

PROVIDER: S-EPMC2764805 | biostudies-literature | 2010 Jan

REPOSITORIES: biostudies-literature