Volume 51, Issue 7 pp. 634-644
Original Article

Episodic temporal structure modulates associative recognition processes: An MEG study

Roni Tibon

Corresponding Author

Roni Tibon

Department of Psychology, Bar-Ilan University, Ramat Gan, Israel

Address correspondence to: Roni Tibon, Department of Psychology, Bar-Ilan University, Ramat-Gan 52900, Israel. E-mail: [email protected]Search for more papers by this author
Eli Vakil

Eli Vakil

Department of Psychology and the Leslie and Susan Gonda (Goldschmied) Multidisciplinary Brain Research Center, Bar-Ilan University, Ramat-Gan, Israel

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Daniel A. Levy

Daniel A. Levy

School of Psychology, The Interdisciplinary Center, Herzliya, Israel

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Abraham Goldstein

Abraham Goldstein

Department of Psychology and the Leslie and Susan Gonda (Goldschmied) Multidisciplinary Brain Research Center, Bar-Ilan University, Ramat-Gan, Israel

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First published: 20 March 2014
Citations: 2
This paper is based on a thesis written by the first author and supervised by two of the authors (Eli Vakil and Abraham Goldstein), submitted to Bar-Ilan University in partial fulfillment of the requirements toward a Ph.D. degree. The work was supported by the I-CORE Program of the Planning and Budgeting Committee and The Israel Science Foundation (grant No. 51/11). We thank Roni Suchowski for assistance with data analysis.

Abstract

The formation of mnemonic associations can occur between items processed in temporal proximity. It has been proposed that such intertemporal associations are not unitizable, and may therefore be retrieved only via recollective processes. To examine this claim, we conducted a magnetoencephalograph study of recognition memory for items encoded and retrieved sequentially. Participants studied successively presented pairs of object pictures, and subsequently made old-new item judgments under several retrieval conditions, differing in degree of reinstatement of associative information. Correct recognition was accompanied by an early event-related field (ERF) component, seemingly corresponding to the FN400 event-related potential component asserted to reflect familiarity; this retrieval success effect was not modulated by degree of associative binding. A later ERF component, corresponding to the late positive component asserted to reflect recollection, was modulated by degree of associative reinstatement. These results suggest that memory of intertemporal associations, which are not amenable to unitization, is accessed via recollection.

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