Spatial frequency requirements for audiovisual speech perception
نویسندگان
چکیده
منابع مشابه
Spatial Frequency Requirements and Gaze Strategy in Visual-Only and Audiovisual Speech Perception.
PURPOSE The aim of this article is to examine the effects of visual image degradation on performance and gaze behavior in audiovisual and visual-only speech perception tasks. METHOD We presented vowel-consonant-vowel utterances visually filtered at a range of frequencies in visual-only, audiovisual congruent, and audiovisual incongruent conditions (Experiment 1; N = 66). In Experiment 2 (N = ...
متن کاملThe role of visual spatial attention in audiovisual speech perception
Auditory and visual information is integrated when perceiving speech, as evidenced by the McGurk effect in which viewing an incongruent talking face categorically alters auditory speech perception. Audiovisual integration in speech perception has long been considered automatic and pre-attentive but recent reports have challenged this view. Here we study the effect of visual spatial attention on...
متن کاملPrediction and constraint in audiovisual speech perception.
During face-to-face conversational speech listeners must efficiently process a rapid and complex stream of multisensory information. Visual speech can serve as a critical complement to auditory information because it provides cues to both the timing of the incoming acoustic signal (the amplitude envelope, influencing attention and perceptual sensitivity) and its content (place and manner of art...
متن کاملUncertainty and attention in audiovisual speech perception
This study deals with uncertainty and attention in audiovisual speech perception. Subjects were exposed to audiovisual stimuli where independent variable was bivalent: either blocked to one ear or uncertainty about in which ear the next stimulus would appear. The hypothesis, that uncertainty would inhibit audiovisual integration was motivated by an earlier study (Öhrström et al, 2011) but these...
متن کاملNeural processing of asynchronous audiovisual speech perception
The temporal synchrony of auditory and visual signals is known to affect the perception of an external event, yet it is unclear what neural mechanisms underlie the influence of temporal synchrony on perception. Using parametrically varied levels of stimulus asynchrony in combination with BOLD fMRI, we identified two anatomically distinct subregions of multisensory superior temporal cortex (mSTC...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Perception & Psychophysics
سال: 2004
ISSN: 0031-5117,1532-5962
DOI: 10.3758/bf03194902