Visual cues that are effective for contextual saccade adaptation

Article


Azadi, Reza and Harwood, M. 2014. Visual cues that are effective for contextual saccade adaptation. Journal of Neurophysiology. 111 (11), pp. 2307-2319.
AuthorsAzadi, Reza and Harwood, M.
Abstract

The accuracy of saccades, as maintained by saccade adaptation, has been shown to be context-dependent: able to have different amplitude movements to the same retinal displacement dependent on motor contexts such as orbital starting location. There is conflicting evidence as to whether purely visual cues also effect contextual saccade adaptation, and if so what function this might serve. We tested what visual cues might evoke contextual adaptation. Over 5 experiments, 78 naive subjects made saccades to circularly moving targets, which stepped outward or inward during the saccade depending on target movement direction, speed, or color and shape. To test if the movement or context post-saccade were critical, we stopped the post-saccade target motion (Exp. 4), or neutralized the contexts by equating post-saccade target speed to an intermediate value (Exp. 5). We found contextual adaptation in all conditions except those defined by color and shape. We conclude that some, but not all, visual cues before the saccade are sufficient for contextual adaptation. We conjecture that this visual contextuality functions to allow for different motor states for different co-ordinated movement patterns, such as co-ordinated saccade and pursuit motor planning.

JournalJournal of Neurophysiology
Journal citation111 (11), pp. 2307-2319
ISSN0022-3077
Year2014
PublisherAmerican Physiological Society
Digital Object Identifier (DOI)doi:10.1152/jn.00894.2013
Web address (URL)https://doi.org/10.1152/jn.00894.2013
Publication dates
Online01 Jun 2014
Print01 Jun 2014
Publication process dates
Deposited26 Sep 2018
Accepted14 Mar 2014
Accepted14 Mar 2014
Copyright information© 2014 American Physiological Society.
Permalink -

https://repository.uel.ac.uk/item/859wq

  • 3
    total views
  • 0
    total downloads
  • 1
    views this month
  • 0
    downloads this month

Related outputs

Reinforcement reduces the size–latency phenomenon: A cost–benefit evaluation of saccade triggering
Vullings, Cécile, Harwood, M. and Madelain, Laurent 2019. Reinforcement reduces the size–latency phenomenon: A cost–benefit evaluation of saccade triggering. Journal of Vision. 19 (4), p. Art. 16.
The saccadic size-latency phenomenon explored: Proximal target size is a determining factor in the saccade latency
De Vries, J.P., Azadi, R. and Harwood, M. 2016. The saccadic size-latency phenomenon explored: Proximal target size is a determining factor in the saccade latency. Vision Research. 129, pp. 87-97.
Adaptation of naturally paced saccades
Gray, Michael J., Blangero, Annabelle, Herman, James P., Wallman, Josh and Harwood, M. 2014. Adaptation of naturally paced saccades. Journal of Neurophysiology. 111 (11), pp. 2343-2354.
Salient Distractors Can Induce Saccade Adaptation
Khan, Afsheen, McFadden, Sally A., Harwood, M. and Wallman, Josh 2014. Salient Distractors Can Induce Saccade Adaptation. Journal of Ophthalmology. 2014 (585792), pp. 1-11.