Header

UZH-Logo

Maintenance Infos

Sequential effects modulate spatial biases


Gökaydin, Dinis; Brugger, Peter; Loetscher, Tobias (2017). Sequential effects modulate spatial biases. Journal of Experimental Psychology: General, 146(10):1438-1447.

Abstract

Healthy individuals usually display a bias toward the left side of space. This effect can be measured in a line bisection task or, alternatively, in a landmark task where prebisected lines are presented to participants. Several factors have been shown to influence pseudoneglect, that is, to vary the magnitude of the left side bias. We performed 2 landmark experiments: 1 online (n = 801) and a 2nd in the laboratory (n = 20). Our results demonstrate that pseudoneglect is strongly modulated by the sequence of trials in a landmark task. Of particular relevance is the fact that, for some histories of responses, pseudoneglect is inverted such that apparently there is a preference for the right side. In addition, we show that the way in which the point of subjective equality depends on the previous sequence of trials is well approximated by an exponential filter, well known from the literature of sequential effects to be related to motor control. In other words, the type of sequential effects we encountered in the landmark task is consistent with a purely motor contribution, further deepening our understanding of the way motor control influences pseudoneglect. (PsycINFO Database Record

Abstract

Healthy individuals usually display a bias toward the left side of space. This effect can be measured in a line bisection task or, alternatively, in a landmark task where prebisected lines are presented to participants. Several factors have been shown to influence pseudoneglect, that is, to vary the magnitude of the left side bias. We performed 2 landmark experiments: 1 online (n = 801) and a 2nd in the laboratory (n = 20). Our results demonstrate that pseudoneglect is strongly modulated by the sequence of trials in a landmark task. Of particular relevance is the fact that, for some histories of responses, pseudoneglect is inverted such that apparently there is a preference for the right side. In addition, we show that the way in which the point of subjective equality depends on the previous sequence of trials is well approximated by an exponential filter, well known from the literature of sequential effects to be related to motor control. In other words, the type of sequential effects we encountered in the landmark task is consistent with a purely motor contribution, further deepening our understanding of the way motor control influences pseudoneglect. (PsycINFO Database Record

Statistics

Citations

Dimensions.ai Metrics
1 citation in Web of Science®
1 citation in Scopus®
Google Scholar™

Altmetrics

Downloads

1 download since deposited on 08 Feb 2018
1 download since 12 months
Detailed statistics

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Clinic for Neurology
Dewey Decimal Classification:610 Medicine & health
Language:English
Date:October 2017
Deposited On:08 Feb 2018 14:11
Last Modified:19 Feb 2018 09:06
Publisher:American Psychological Association
ISSN:0096-3445
OA Status:Closed
Publisher DOI:https://doi.org/10.1037/xge0000358
PubMed ID:28872329

Download