Crossref journal-article
MIT Press - Journals
Journal of Cognitive Neuroscience (281)
Abstract

Abstract The effects of divided attention (DA) on episodic memory encoding and retrieval were investigated in 12 normal young subjects by positron emission tomography (PET). Cerebral blood flow was measured while subjects were concurrently performing a memory task (encoding and retrieval of visually presented word pairs) and an auditory tone-discrimination task. The PET data were analyzed using multivariate Partial Least Squares (PLS), and the results revealed three sets of neural correlates related to specific task contrasts. Brain activity, relatively greater under conditions of full attention (FA) than DA, was identified in the occipital-temporal, medial, and ventral-frontal areas, whereas areas showing relatively more activity under DA than FA were found in the cerebellum, temporo-parietal, left anterior-cingulate gyrus, and bilateral dorsolateral-prefrontal areas. Regions more active during encoding than during retrieval were located in the hippocampus, temporal and the prefrontal cortex of the left hemisphere, and regions more active during retrieval than during encoding included areas in the medial and right-prefrontal cortex, basal ganglia, thalamus, and cuneus. DA at encoding was associated with specific decreases in rCBF in the left-prefrontal areas, whereas DA at retrieval was associated with decreased rCBF in a relatively small region in the right-prefrontal cortex. These different patterns of activity are related to the behavioral results, which showed a substantial decrease in memory performance when the DA task was performed at encoding, but no change in memory levels when the DA task was performed at retrieval.

Bibliography

Iidaka, T., Anderson, N. D., Kapur, S., Cabez, R., & Craik, F. I. M. (2000). The Effect of Divided Attention on Encoding and Retrieval in Episodic Memory Revealed by Positron Emission Tomography. Journal of Cognitive Neuroscience, 12(2), 267–280.

Authors 5
  1. Tetsuya Iidaka (first)
  2. Nicole D. Anderson (additional)
  3. Shitij Kapur (additional)
  4. Roberto Cabez (additional)
  5. Fergus I. M. Craik (additional)
References 43 Referenced 106
  1. 10.1037/0882-7974.13.3.405
  2. 10.1037/0096-3445.113.4.518
  3. 10.1097/00001756-199801050-00024
  4. 10.1523/JNEUROSCI.17-01-00391.1997
  5. 10.1162/jocn.1997.9.2.277
  6. 10.1162/jocn.1997.9.1.1
  7. 10.1523/JNEUROSCI.11-08-02383.1991
  8. 10.1037/0735-7044.108.5.848
  9. 10.1037/0096-3445.125.2.159
  10. 10.1038/378279a0
  11. 10.1038/41561
  12. 10.1214/ss/1177013815
  13. 10.1093/brain/118.2.401
  14. 10.1016/S0166-2236(96)01013-2
  15. {'key': 'p_17', 'first-page': '1239', 'volume': '121', 'author': 'Fletcher P. C.', 'year': '1998', 'journal-title': 'I. Encoding. Brain'} / I. Encoding. Brain by Fletcher P. C. (1998)
  16. 10.1073/pnas.95.3.906
  17. 10.1093/brain/117.6.1271
  18. 10.1006/nimg.1997.0292
  19. 10.1073/pnas.91.6.2008
  20. 10.1016/S0926-6410(96)00058-4
  21. 10.1016/S0896-6273(00)80474-2
  22. 10.1093/cercor/8.7.593
  23. {'key': 'p_26', 'first-page': '21', 'volume': '66', 'author': 'Knight R. T.', 'year': '1995', 'journal-title': 'Advance in Neurology'} / Advance in Neurology by Knight R. T. (1995)
  24. 10.1002/(SICI)1098-1063(1998)8:4<313::AID-HIPO1>3.0.CO;2-I
  25. 10.1006/nimg.1997.0308
  26. 10.1002/(SICI)1097-0193(1997)5:6<389::AID-HBM1>3.0.CO;2-#
  27. 10.1006/nimg.1996.0016
  28. 10.1002/(SICI)1097-0193(1997)5:6<422::AID-HBM3>3.0.CO;2-5
  29. 10.1016/S0079-6123(08)62676-X
  30. 10.1038/349061a0
  31. 10.1152/jn.1993.70.2.453
  32. 10.1093/cercor/4.1.8
  33. 10.1016/0892-0362(89)90025-1
  34. 10.1002/(SICI)1098-1063(1999)9:1<7::AID-HIPO2>3.0.CO;2-K
  35. 10.1002/(SICI)1097-0193(1996)4:3<174::AID-HBM3>3.0.CO;2-0
  36. 10.1038/368633a0
  37. 10.1162/jocn.1997.9.5.624
  38. 10.1073/pnas.91.6.2016
  39. 10.1093/cercor/6.1.71
  40. 10.1097/00001756-199811160-00026
  41. 10.1126/science.6879207
  42. 10.1097/00004728-199307000-00004
  43. 10.1523/JNEUROSCI.14-04-01908.1994
Dates
Type When
Created 23 years, 1 month ago (July 27, 2002, 7:56 a.m.)
Deposited 4 years, 1 month ago (July 27, 2021, 12:40 p.m.)
Indexed 3 months, 2 weeks ago (May 20, 2025, 9:14 a.m.)
Issued 25 years, 6 months ago (March 1, 2000)
Published 25 years, 6 months ago (March 1, 2000)
Published Online 25 years, 6 months ago (March 1, 2000)
Published Print 25 years, 6 months ago (March 1, 2000)
Funders 0

None

@article{Iidaka_2000, title={The Effect of Divided Attention on Encoding and Retrieval in Episodic Memory Revealed by Positron Emission Tomography}, volume={12}, ISSN={1530-8898}, url={http://dx.doi.org/10.1162/089892900562093}, DOI={10.1162/089892900562093}, number={2}, journal={Journal of Cognitive Neuroscience}, publisher={MIT Press - Journals}, author={Iidaka, Tetsuya and Anderson, Nicole D. and Kapur, Shitij and Cabez, Roberto and Craik, Fergus I. M.}, year={2000}, month=mar, pages={267–280} }