Pursuit Eye-Movements in Curve Driving Differentiate between Future Path and Tangent Point Models

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http://hdl.handle.net/10138/164335

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Lappi , O , Pekkanen , J & Itkonen , T H 2013 , ' Pursuit Eye-Movements in Curve Driving Differentiate between Future Path and Tangent Point Models ' , PLoS One , vol. 8 , no. 7 , 68326 . https://doi.org/10.1371/journal.pone.0068326

Title: Pursuit Eye-Movements in Curve Driving Differentiate between Future Path and Tangent Point Models
Author: Lappi, Otto; Pekkanen, Jami; Itkonen, Teemu H.
Contributor: University of Helsinki, Behavioural Sciences
University of Helsinki, Behavioural Sciences
University of Helsinki, Univ Helsinki, University of Helsinki, Inst Behav Sci
Date: 2013-07-22
Language: eng
Number of pages: 16
Belongs to series: PLoS One
ISSN: 1932-6203
URI: http://hdl.handle.net/10138/164335
Abstract: For nearly 20 years, looking at the tangent point on the road edge has been prominent in models of visual orientation in curve driving. It is the most common interpretation of the commonly observed pattern of car drivers looking through a bend, or at the apex of the curve. Indeed, in the visual science literature, visual orientation towards the inside of a bend has become known as “tangent point orientation”. Yet, it remains to be empirically established whether it is the tangent point the drivers are looking at, or whether some other reference point on the road surface, or several reference points, are being targeted in addition to, or instead of, the tangent point. Recently discovered optokinetic pursuit eye-movements during curve driving can provide complementary evidence over and above traditional gaze-position measures. This paper presents the first detailed quantitative analysis of pursuit eye movements elicited by curvilinear optic flow in real driving. The data implicates the far zone beyond the tangent point as an important gaze target area during steady-state cornering. This is in line with the future path steering models, but difficult to reconcile with any pure tangent point steering model. We conclude that the tangent point steering models do not provide a general explanation of eye movement and steering during a curve driving sequence and cannot be considered uncritically as the default interpretation when the gaze position distribution is observed to be situated in the region of the curve apex.
Subject: OPTOKINETIC NYSTAGMUS
ALGORITHM
DRIVER
FLOW
6162 Cognitive science
515 Psychology
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