Antisaccade cost is modulated by contextual experience of location probability

Chia Lun Liu, Hui Yan Chiau, Philip Tseng, Daisy L. Hung, Ovid J L Tzeng, Neil G. Muggleton, Chi Hung Juan

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

It is well known that pro- and antisaccades may deploy different cognitive processes. However, the specific reason why antisaccades have longer latencies than prosaccades is still under debate. In three experiments, we studied the factors contributing to the antisaccade cost by taking attentional orienting and target location probabilities into account. In experiment 1, using a new antisaccade paradigm, we directly tested Olk and Kingstone's hypothesis, which attributes longer antisaccade latency to the time it takes to reorient from the visual target to the opposite saccadic target. By eliminating the reorienting component in our paradigm, we found no significant difference between the latencies of the two saccade types. In experiment 2, we varied the proportion of prosaccades made to certain locations and found that latencies in the high location-probability (75%) condition were faster than those in the low location-probability condition. Moreover, antisaccade latencies were significantly longer when location probability was high. This pattern can be explained by the notion of competing pathways for pro- and antisaccades in findings of others. In experiment 3, we further explored the degrees of modulation of location probability by decreasing the magnitude of high probability from 75 to 65%. We again observed a pattern similar to that seen in experiment 2 but with smaller modulation effects. Together, these experiments indicate that the reorienting process is a critical factor in producing the antisaccade cost. Furthermore, the antisaccade cost can be modulated by probabilistic contextual information such as location probabilities.

Original languageEnglish
Pages (from-to)1438-1447
Number of pages10
JournalJournal of Neurophysiology
Volume103
Issue number3
DOIs
Publication statusPublished - Mar 2010
Externally publishedYes

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Costs and Cost Analysis
Saccades

ASJC Scopus subject areas

  • Physiology
  • Neuroscience(all)

Cite this

Liu, C. L., Chiau, H. Y., Tseng, P., Hung, D. L., Tzeng, O. J. L., Muggleton, N. G., & Juan, C. H. (2010). Antisaccade cost is modulated by contextual experience of location probability. Journal of Neurophysiology, 103(3), 1438-1447. https://doi.org/10.1152/jn.00815.2009

Antisaccade cost is modulated by contextual experience of location probability. / Liu, Chia Lun; Chiau, Hui Yan; Tseng, Philip; Hung, Daisy L.; Tzeng, Ovid J L; Muggleton, Neil G.; Juan, Chi Hung.

In: Journal of Neurophysiology, Vol. 103, No. 3, 03.2010, p. 1438-1447.

Research output: Contribution to journalArticle

Liu, CL, Chiau, HY, Tseng, P, Hung, DL, Tzeng, OJL, Muggleton, NG & Juan, CH 2010, 'Antisaccade cost is modulated by contextual experience of location probability', Journal of Neurophysiology, vol. 103, no. 3, pp. 1438-1447. https://doi.org/10.1152/jn.00815.2009
Liu, Chia Lun ; Chiau, Hui Yan ; Tseng, Philip ; Hung, Daisy L. ; Tzeng, Ovid J L ; Muggleton, Neil G. ; Juan, Chi Hung. / Antisaccade cost is modulated by contextual experience of location probability. In: Journal of Neurophysiology. 2010 ; Vol. 103, No. 3. pp. 1438-1447.
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