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Concept information

process > neurophysiological process > event-related potentials > contralateral delay activity

Preferred term

contralateral delay activity  

Definition

  • A negative slow wave in the contralateral hemisphere where the items to be maintained are presented. CDA is an indicator of visual working memory capacity: its amplitude increases as the number of items to be maintained increases, but reaches an asymptote at 3-4 items.

Broader concept

Related concepts

Synonym(s)

  • CDA
  • CNSW
  • contralateral negative slow wave
  • contralateral search activity
  • CSA
  • SPCN
  • sustained posterior contralateral negativity

Belongs to group

Bibliographic citation(s)

  • • Hakim, N., Awh, E., & Vogel, E. K. (2021). Manifold visual working memory. In R. Logie, V. Camos, & N. Cowan (Eds.), Working memory : The state of the science (p. 311‑332). Oxford University Press.

    [Study type: literature review / Access: closed]
  • • Luria, R., Balaban, H., Awh, E., & Vogel, E. K. (2016). The contralateral delay activity as a neural measure of visual working memory. Neuroscience and Biobehavioral Reviews, 62, 100‑108. https://doi.org/10.1016/j.neubiorev.2016.01.003

    [Study type: literature review / Access: closed]
  • • Vogel, E. K., & Machizawa, M. G. (2004). Neural activity predicts individual differences in visual working memory capacity. Nature, 428(6984), 748‑751. https://doi.org/10.1038/nature02447

    [Study type: empirical study / Access: closed]
  • • Vogel, E. K., McCollough, A. W., & Machizawa, M. G. (2005). Neural measures reveal individual differences in controlling access to working memory. Nature, 438(7067), 500‑503. https://doi.org/10.1038/nature04171

    [Study type: empirical study / Access: closed]

Creator

  • Frank Arnould

In other languages

URI

http://data.loterre.fr/ark:/67375/P66-TKRT989C-Q

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