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Vision 2017, 1(4), 25; doi:10.3390/vision1040025

The Effect of Stimulus Size and Eccentricity on Attention Shift Latencies

1
Department of Affective Neuroscience and Psychophysiology, Göttingen University, Leibniz Science Campus Primate Cognition, 37073 Göttingen, Germany
2
Division of Psychology and Language Sciences, Faculty of Brain Sciences, University College London, London WC1E 6BT, UK
Academic Editors: Alessandro Soranzo, Wilson Christopher and Marco Bertamini
Received: 5 September 2017 / Revised: 24 November 2017 / Accepted: 4 December 2017 / Published: 7 December 2017
(This article belongs to the Special Issue Reflexive Shifts in Visual Attention)
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Abstract

The ability to shift attention between relevant stimuli is crucial in everyday life and allows us to focus on relevant events. It develops during early childhood and is often impaired in clinical populations, as can be investigated in the fixation shift paradigm and the gap–overlap paradigm. Different tests use stimuli of different sizes presented at different eccentricities, making it difficult to compare them. This study systematically investigates the effect of eccentricity and target size on refixation latencies towards target stimuli. Eccentricity and target size affected attention shift latencies with greatest latencies to big targets that were presented at a small eccentricity. Slowed responses to large parafoveal targets are in line with the idea that specific areas in the superior colliculus can lead to inhibition of eye movements. Findings suggest that the two different paradigms are generally comparable, as long as the target is scaled in proportion to the eccentricity. View Full-Text
Keywords: attention; fixation shift paradigm; gap–overlap paradigm; infancy; eye-tracking attention; fixation shift paradigm; gap–overlap paradigm; infancy; eye-tracking
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Kulke, L. The Effect of Stimulus Size and Eccentricity on Attention Shift Latencies. Vision 2017, 1, 25.

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