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The saccadic Stroop effect: Evidence for involuntary programming of eye movements by linguistic cues.

Hodgson TL, Parris BA, Gregory NJ, Jarvis T - Vision Res. (2009)

Bottom Line: The effect of automatic priming of behaviour by linguistic cues is well established.However, as yet these effects have not been directly demonstrated for eye movement responses.The results showed that oculomotor programming was influenced by word identity, even though the written word provided no task relevant information.

View Article: PubMed Central - PubMed

Affiliation: School of Psychology, University of Exeter, Prince of Wales Road, Devon EX4 4QG, UK. t.l.hodgson@exeter.ac.uk

ABSTRACT
The effect of automatic priming of behaviour by linguistic cues is well established. However, as yet these effects have not been directly demonstrated for eye movement responses. We investigated the effect of linguistic cues on eye movements using a modified version of the Stroop task in which a saccade was made to the location of a peripheral colour patch which matched the "ink" colour of a centrally presented word cue. The words were either colour words ("red", "green", "blue", "yellow") or location words ("up", "down", "left", "right"). As in the original version of the Stroop task the identity of the word could be either congruent or incongruent with the response location. The results showed that oculomotor programming was influenced by word identity, even though the written word provided no task relevant information. Saccade latency was increased on incongruent trials and an increased frequency of error saccades was observed in the direction congruent with the word identity. The results argue against traditional distinctions between reflexive and voluntary programming of saccades and suggest that linguistic cues can also influence eye movement programming in an automatic manner.

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(a) Response times and error rates for control experiment in which 12 participants repeated the experiment with peripheral colour patch location randomised across trials; (b) Example “capture error” trials from the control experiment.
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d32e622: (a) Response times and error rates for control experiment in which 12 participants repeated the experiment with peripheral colour patch location randomised across trials; (b) Example “capture error” trials from the control experiment.


The saccadic Stroop effect: Evidence for involuntary programming of eye movements by linguistic cues.

Hodgson TL, Parris BA, Gregory NJ, Jarvis T - Vision Res. (2009)

(a) Response times and error rates for control experiment in which 12 participants repeated the experiment with peripheral colour patch location randomised across trials; (b) Example “capture error” trials from the control experiment.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2724027&req=5

d32e622: (a) Response times and error rates for control experiment in which 12 participants repeated the experiment with peripheral colour patch location randomised across trials; (b) Example “capture error” trials from the control experiment.
Bottom Line: The effect of automatic priming of behaviour by linguistic cues is well established.However, as yet these effects have not been directly demonstrated for eye movement responses.The results showed that oculomotor programming was influenced by word identity, even though the written word provided no task relevant information.

View Article: PubMed Central - PubMed

Affiliation: School of Psychology, University of Exeter, Prince of Wales Road, Devon EX4 4QG, UK. t.l.hodgson@exeter.ac.uk

ABSTRACT
The effect of automatic priming of behaviour by linguistic cues is well established. However, as yet these effects have not been directly demonstrated for eye movement responses. We investigated the effect of linguistic cues on eye movements using a modified version of the Stroop task in which a saccade was made to the location of a peripheral colour patch which matched the "ink" colour of a centrally presented word cue. The words were either colour words ("red", "green", "blue", "yellow") or location words ("up", "down", "left", "right"). As in the original version of the Stroop task the identity of the word could be either congruent or incongruent with the response location. The results showed that oculomotor programming was influenced by word identity, even though the written word provided no task relevant information. Saccade latency was increased on incongruent trials and an increased frequency of error saccades was observed in the direction congruent with the word identity. The results argue against traditional distinctions between reflexive and voluntary programming of saccades and suggest that linguistic cues can also influence eye movement programming in an automatic manner.

Show MeSH