Skip to main content
Journal cover image

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

Publication ,  Journal Article
Kim, H; Daselaar, SM; Cabeza, R
Published in: NeuroImage
January 2010

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 hypothesized that during the test phase, retrieval success activity (old > new) involves mainly the task-negative network, whereas novelty detection activity (new > old) involves mainly the task-positive network. Based on these hypotheses, we made 3 predictions regarding study-test overlap. First, there would be relatively high level of overlap between encoding success and novelty detection activity involving the task-positive network. Second, there would be relatively high level of overlap between encoding failure and retrieval success activity involving the task-negative network. Third, there would be relatively low level of overlap between encoding success and retrieval success activity as well as between encoding failure and novelty detection activity. The results fully confirmed our 3 predictions. Taken together, the present findings clarify roles of the task-positive and task-negative networks in encoding and retrieval and the function of overlapping brain activity between encoding and retrieval.

Duke Scholars

Altmetric Attention Stats
Dimensions Citation Stats

Published In

NeuroImage

DOI

EISSN

1095-9572

ISSN

1053-8119

Publication Date

January 2010

Volume

49

Issue

1

Start / End Page

1045 / 1054

Related Subject Headings

  • Young Adult
  • Reading
  • Psychomotor Performance
  • Neurology & Neurosurgery
  • Nerve Net
  • Models, Neurological
  • Mental Recall
  • Male
  • Magnetic Resonance Imaging
  • Image Processing, Computer-Assisted
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Kim, H., Daselaar, S. M., & Cabeza, R. (2010). Overlapping brain activity between episodic memory encoding and retrieval: roles of the task-positive and task-negative networks. NeuroImage, 49(1), 1045–1054. https://doi.org/10.1016/j.neuroimage.2009.07.058
Kim, Hongkeun, Sander M. Daselaar, and Roberto Cabeza. “Overlapping brain activity between episodic memory encoding and retrieval: roles of the task-positive and task-negative networks.NeuroImage 49, no. 1 (January 2010): 1045–54. https://doi.org/10.1016/j.neuroimage.2009.07.058.
Kim, Hongkeun, et al. “Overlapping brain activity between episodic memory encoding and retrieval: roles of the task-positive and task-negative networks.NeuroImage, vol. 49, no. 1, Jan. 2010, pp. 1045–54. Epmc, doi:10.1016/j.neuroimage.2009.07.058.
Journal cover image

Published In

NeuroImage

DOI

EISSN

1095-9572

ISSN

1053-8119

Publication Date

January 2010

Volume

49

Issue

1

Start / End Page

1045 / 1054

Related Subject Headings

  • Young Adult
  • Reading
  • Psychomotor Performance
  • Neurology & Neurosurgery
  • Nerve Net
  • Models, Neurological
  • Mental Recall
  • Male
  • Magnetic Resonance Imaging
  • Image Processing, Computer-Assisted