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JoVE Journal
Behavior
A Two-interval Forced-choice Task for Multisensory Comparisons
A Two-interval Forced-choice Task for Multisensory Comparisons
JoVE Journal
Behavior
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JoVE Journal Behavior
A Two-interval Forced-choice Task for Multisensory Comparisons

A Two-interval Forced-choice Task for Multisensory Comparisons

Full Text
11,496 Views
07:13 min
November 9, 2018

DOI: 10.3791/58408-v

Fabiola Duarte1, Tonatiuh Figueroa1, Luis Lemus1

1Neurociencia Cognitiva, Instituto de Fisiología Celular,Universidad Nacional Autónoma de México

Psychophysics is essential for studying perception phenomena through sensory information. Here we present a protocol to perform a two-interval forced-choice task as implemented in a previous report on human psychophysics where participants estimated the duration of visual, auditory, or audiovisual intervals of aperiodic trains of pulses.

This method can help answer critical questions in the field of perception neuroscience. Such as how time intervals are estimated by different sensory modalities. The main advantage of this technique is that it provides measurements of accuracy and reaction times which are perceptual outcomes of behavioral processes.

Though this method can provide insight into human perception, it can also be applied to other animal models, such as trained or human primates. Begin by opening the experimental software. Click on the Set Path option in the Menu tab.

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