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Visual PsychophysicsFrom Laboratory to Theory$
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Zhong-Lin Lu and Barbara Dosher

Print publication date: 2013

Print ISBN-13: 9780262019453

Published to MIT Press Scholarship Online: May 2014

DOI: 10.7551/mitpress/9780262019453.001.0001

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Response Collection

Response Collection

(p.161) 6 Response Collection
Visual Psychophysics

Zhong-Lin Lu

Barbara Dosher

The MIT Press

Once the stimulus is generated and displayed on the monitor or other display device, the next step is to measure aspects of the observer’s response, which may be as simple as a key-press or as complex as an implicit behavior such as eye movements or physiological responses observed through external devices. In this chapter, we describe the use of many standard methods of collecting responses and consider issues of synchronization between stimulus presentation and response collection or between multiple devices collecting distinct responses. The first two sections describe the collection of discrete responses and the measurement of response times, respectively. The third section provides relevant programs and examples. The fourth section treats the measurement of eye movements, and the fifth section describes the synchronization issues in the collection of physiological data.

Keywords:   Manual responses, Eye movement responses, Physiological responses, Response times, Response box, Eyetracker, Electroencephalography (EEG), Magnetoencephalography (MEG), Functional Magnetic Resonance Imaging (fMRI), Device synchronization

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