Top-down instructional attention modulates audiovisual speech perception in unimpaired listeners

Evidence

Audiovisual fusion has long been considered as an automatic fusion process (e.g. Massaro 1987 ). However Exp. A. confirms that the contextual stimulus may modulate fusion as in our previous experiments (Nahorna et al. 2012 ; Ganesh et al. 2013 ; Nahorna et al. 2015 ) and extends the concept to the case of competing sources. This supports the AVSSA hypothesis, in which a first speech scene analysis process would group together the adequate audiovisual pieces of information and estimate the degree of audiovisual coherence. — Dijk, Pim van, Physiology, Psychoacoustics and…, 5137 (#corroborates, via linked claim)

Categorization

• XREF: connects to: Voluntary attention modulates how audiovisual contexts affect subsequent fusion — Dijk, Pim van, Physiology, Psychoacoustics and…, 5137; Speech processing deficits can impair understanding independent of hearing; Audiovisual context coherence strengthens perceptual binding of speech syllables (+2 more)

Broader Connections

• Audiovisual speech fusion is not an automatic process but context-modulated. #corroborates (0.85) — Dijk, Pim van, Physiology, Psychoacoustics and…, 5137
• Audiovisual context coherence strengthens perceptual binding of speech syllables #corroborates (0.82)
• Speech processing deficits can impair understanding independent of hearing #qualifies (0.72)