Publication

Intracranial electroencephalography reveals two distinct similarity effects during item recognition

van Vugt, M. K., Schulze-Bonhage, A., Sekuler, R., Litt, B., Brandt, A., Baltuch, G. & Kahana, M. J., 3-Nov-2009, In : Brain Research. 1299, p. 33-44 12 p.

Research output: Contribution to journalArticleAcademicpeer-review

  • Marieke K. van Vugt
  • Andreas Schulze-Bonhage
  • Robert Sekuler
  • Brian Litt
  • Armin Brandt
  • Gordon Baltuch
  • Michael J. Kahana

Behavioral studies of visual recognition memory indicate that old/new decisions reflect both the similarity of the probe to the studied items (probe-item similarity) and the similarities among the studied items themselves (list homogeneity) Recording intracranial electroencephalography from 1,155 electrodes across 15 patients, we examined the oscillatory correlates of probe-item similarity and homogeneity effects in short-term recognition memory for synthetic faces. Frontal areas show increases in low-frequency oscillations with both probe-item and item-item similarity, whereas temporal lobe areas show distinct oscillatory correlates for probe-item similarity and homogeneity in the gamma band We discuss these frontal low-frequency effects and the dissociation in the temporal lobe in terms of recent computational models of visual recognition memory (C) 2009 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)33-44
Number of pages12
JournalBrain Research
Volume1299
Publication statusPublished - 3-Nov-2009

    Keywords

  • Oscillation, Recognition memory, Cognitive modeling, Similarity, ANTERIOR PREFRONTAL CORTEX, SHORT-TERM-MEMORY, VISUAL WORKING-MEMORY, MEDIAL TEMPORAL-LOBE, GAMMA OSCILLATIONS, FRONTOPOLAR CORTEX, DECISION-MAKING, INDIVIDUAL-DIFFERENCES, THETA-OSCILLATIONS, DISTINGUISH TRUE

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