Article | REF: TE5184 V1

Spatial perception and immersion - Audiovisual perception and virtual reality

Author: Jacques Jouhaneau

Publication date: February 10, 2013, Review date: January 1, 2024

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2. From perception to interpretation

2.1 Pseudo-convergences

We saw in paragraph 2.1.2 that the simultaneous perception of an image and a sound can escape the process of fusion/dissociation and enter that of compromise. This is known as "summation". One of the most classic cases of pseudo-convergence is known as the "ventriloquist effect".

A puppet animator who speaks without moving his lips gives the spectator the impression that the sound is coming from his puppet's mouth. The illusion is reinforced by the movement...

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