Speed-Accuracy Instructions modulate Saccadic Velocity in an Eye-Tracking version of the Trail-Making-Test

Recker L, Poth CH (2021)
Perception 50(Suppl. 1): 115.

Kurzbeitrag Konferenz / Poster | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
Examining the eye movements of a person during their performance of a task offers a way to gain deeper insights into ongoing cognitive processes of that person. A body of work suggests that the peak velocity of a saccade is related to the cognitive demands of a task. Recently, we recorded eye movements of participants while they performed a version of a computerized Trail-Making-Test (TMT), a popular test of executive functions applied in neuropsychological contexts. During the test participants clicked through a sequence of numbers (TMT-A) or alternated between a sequence of numbers and letters (TMT-B) emphasizing either the speed or the accuracy of their responses. Since part A and part B generally differ in their task difficulty, we examined if the saccadic peak velocities were reflective of that difference. Our analyses revealed peak velocities were greater during performance of TMT-B but only when participants were emphasizing the speed of their responses. TMT-A performance yielded no such differences. We suggest that this is due to the combination of test part B with the speed task-set. The speed task-set might amplify the effect of task difficulty on the level of arousal which becomes visible in higher saccade peak velocities. In contrast, the accuracy task set might limit the effect of task-difficulty on arousal, to ensure an appropriate level of carefulness in task performance. Taken together, these findings highlight saccade velocities as a tool to uncover cognitive and physiological states in sensorimotor tasks.
Erscheinungsjahr
2021
forms.conference_abstract.field.series_title_volume.series_title.label
Perception
Band
50
Ausgabe
Suppl. 1
Seite(n)
115
Konferenz
43rd European Conference on Visual Perception (ECVP)
Konferenzort
Online
ISSN
0301-0066
eISSN
1468-4233
Page URI
https://pub.uni-bielefeld.de/record/2960714

Zitieren

Recker L, Poth CH. Speed-Accuracy Instructions modulate Saccadic Velocity in an Eye-Tracking version of the Trail-Making-Test. Perception . 2021;50(Suppl. 1):115.
Recker, L., & Poth, C. H. (2021). Speed-Accuracy Instructions modulate Saccadic Velocity in an Eye-Tracking version of the Trail-Making-Test. Perception , 50(Suppl. 1), 115. https://doi.org/10.1177/03010066211059887
Recker, L., and Poth, C. H. (2021). Speed-Accuracy Instructions modulate Saccadic Velocity in an Eye-Tracking version of the Trail-Making-Test. Perception 50, 115.
Recker, L., & Poth, C.H., 2021. Speed-Accuracy Instructions modulate Saccadic Velocity in an Eye-Tracking version of the Trail-Making-Test. Perception , 50(Suppl. 1), p 115.
L. Recker and C.H. Poth, “Speed-Accuracy Instructions modulate Saccadic Velocity in an Eye-Tracking version of the Trail-Making-Test”, Perception , vol. 50, 2021, pp. 115.
Recker, L., Poth, C.H.: Speed-Accuracy Instructions modulate Saccadic Velocity in an Eye-Tracking version of the Trail-Making-Test. Perception . 50, 115 (2021).
Recker, Lukas, and Poth, Christian H. “Speed-Accuracy Instructions modulate Saccadic Velocity in an Eye-Tracking version of the Trail-Making-Test”. Perception 50.Suppl. 1 (2021): 115.

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