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Working memory processes show different degrees of lateralization: evidence from event-related potentials

(2001) PSYCHOPHYSIOLOGY. 38(3). p.425-439
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Abstract
This study aimed to identify different processes in working memory, using event-related potentials (ERPs) and response times. Abstract polygons were presented for memorization and subsequent recall in a delayed matching-to-sample paradigm. Two polygons were presented bilaterally for memorization and a cue indicated whether one (and if so, which one of the two) or both polygons had to be memorized. A subsequent test figure was presented unilaterally to the left or right visual field and had to be compared with the memorized figure(s). ERP results suggested that memorization takes place in a visual buffer in contralateral posterior brain areas, whereas identification of the test stimulus as a target appears to be mainly a left hemispheric process. Increased response times were found for nontarget test stimuli as compared to targets, and for target test stimuli that were presented contralaterally with respect to the location of the memorized stimulus. In addition, response times were slower when two figures were memorized than when only one was memorized.
Keywords
FRONTAL-CORTEX, HUMAN EXTRASTRIATE CORTEX, ORGANIZATION, ACTIVATION, DISSOCIATION, ATTENTION, OBJECT, REACTION-TIME, P300 LATENCY, VISUAL MEMORY, visual working memory, ERPs, N2pc, lateralization

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Citation

Please use this url to cite or link to this publication:

MLA
Talsma, Durk, Albertus Wijers, Peter Klaver, et al. “Working Memory Processes Show Different Degrees of Lateralization: Evidence from Event-related Potentials.” PSYCHOPHYSIOLOGY 38.3 (2001): 425–439. Print.
APA
Talsma, Durk, Wijers, A., Klaver, P., & Mulder, G. (2001). Working memory processes show different degrees of lateralization: evidence from event-related potentials. PSYCHOPHYSIOLOGY, 38(3), 425–439.
Chicago author-date
Talsma, Durk, Albertus Wijers, Peter Klaver, and Gijsbertus Mulder. 2001. “Working Memory Processes Show Different Degrees of Lateralization: Evidence from Event-related Potentials.” Psychophysiology 38 (3): 425–439.
Chicago author-date (all authors)
Talsma, Durk, Albertus Wijers, Peter Klaver, and Gijsbertus Mulder. 2001. “Working Memory Processes Show Different Degrees of Lateralization: Evidence from Event-related Potentials.” Psychophysiology 38 (3): 425–439.
Vancouver
1.
Talsma D, Wijers A, Klaver P, Mulder G. Working memory processes show different degrees of lateralization: evidence from event-related potentials. PSYCHOPHYSIOLOGY. 2001;38(3):425–39.
IEEE
[1]
D. Talsma, A. Wijers, P. Klaver, and G. Mulder, “Working memory processes show different degrees of lateralization: evidence from event-related potentials,” PSYCHOPHYSIOLOGY, vol. 38, no. 3, pp. 425–439, 2001.
@article{3083613,
  abstract     = {This study aimed to identify different processes in working memory, using event-related potentials (ERPs) and response times. Abstract polygons were presented for memorization and subsequent recall in a delayed matching-to-sample paradigm. Two polygons were presented bilaterally for memorization and a cue indicated whether one (and if so, which one of the two) or both polygons had to be memorized. A subsequent test figure was presented unilaterally to the left or right visual field and had to be compared with the memorized figure(s). ERP results suggested that memorization takes place in a visual buffer in contralateral posterior brain areas, whereas identification of the test stimulus as a target appears to be mainly a left hemispheric process. Increased response times were found for nontarget test stimuli as compared to targets, and for target test stimuli that were presented contralaterally with respect to the location of the memorized stimulus. In addition, response times were slower when two figures were memorized than when only one was memorized.},
  author       = {Talsma, Durk and Wijers, Albertus and Klaver, Peter and Mulder, Gijsbertus},
  issn         = {0048-5772},
  journal      = {PSYCHOPHYSIOLOGY},
  keywords     = {FRONTAL-CORTEX,HUMAN EXTRASTRIATE CORTEX,ORGANIZATION,ACTIVATION,DISSOCIATION,ATTENTION,OBJECT,REACTION-TIME,P300 LATENCY,VISUAL MEMORY,visual working memory,ERPs,N2pc,lateralization},
  language     = {eng},
  number       = {3},
  pages        = {425--439},
  title        = {Working memory processes show different degrees of lateralization: evidence from event-related potentials},
  url          = {http://dx.doi.org/10.1017/S0048577201991450},
  volume       = {38},
  year         = {2001},
}

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