Unilateral Auditory Stimulation and the Visual Perception of Verticality: One More Time

1980 ◽  
Vol 50 (1) ◽  
pp. 171-182
Author(s):  
H. D. Day ◽  
L. F. Shelly
Keyword(s):  
Field Theory ◽  
Visual Perception ◽  
Auditory Stimulation ◽  
Vertical Position ◽  
Starting Position ◽  
Perception Of Verticality

The effects of varying conditions of unilateral auditory stimulation on the visual perception of verticality were examined in two experiments using 18 and 42 subjects, respectively. Significant effects of auditory stimulation and hand used to make the verticality adjustments were not found. With only one exception in Exp. 2, the starting position of the rod also had no influence on the ability of the subjects to adjust a rod to its vertical position. The literature pertaining to sensory-tonic field theory of perception was critically reviewed.

scholarly journals Rhythmic modulation of visual perception by continuous rhythmic auditory stimulation

2020 ◽  
Author(s):  
Anna-Katharina R. Bauer ◽  
Freek van Ede ◽  
Andrew J. Quinn ◽  
Anna C. Nobre
Keyword(s):  
Visual Perception ◽  
Neural Activity ◽  
Sensory Modality ◽  
Auditory Stimulation ◽  
Visual Performance ◽  
List Type ◽  
Sensory Modalities ◽  
Visual Areas ◽  
Visual Cortical

AbstractAt any given moment our sensory systems receive multiple, often rhythmic, inputs from the environment. Processing of temporally structured events in one sensory modality can guide both behavioural and neural processing of events in other sensory modalities, but how this occurs remains unclear. Here, we used human electroencephalography (EEG) to test the cross-modal influences of a continuous auditory frequency-modulated (FM) sound on visual perception and visual cortical activity. We report systematic fluctuations in perceptual discrimination of brief visual stimuli in line with the phase of the FM sound. We further show that this rhythmic modulation in visual perception is related to an accompanying rhythmic modulation of neural activity recorded over visual areas. Importantly, in our task, perceptual and neural visual modulations occurred without any abrupt and salient onsets in the energy of the auditory stimulation and without any rhythmic structure in the visual stimulus. As such, the results provide a critical validation for the existence and functional role of cross-modal entrainment and demonstrates its utility for organising the perception of multisensory stimulation in the natural environment.Highlightscross-modal influences are mediated by the synchronisation of neural oscillationsvisual performance fluctuates in line with the phase of a frequency-modulated soundcross-modal entrainment of neural activity predicts fluctuation in visual performancecross-modal entrainment organises perception of multisensory stimuli

scholarly journals Contribution of Somesthetic Information to the Perception of Body Orientation in the Pitch Dimension

2003 ◽  
Vol 56 (5) ◽  
pp. 909-923 ◽  
Author(s):  
Lionel Bringoux ◽  
Vincent Nougier ◽  
Ludovic Marin ◽  
Pierre-Alain Barraud ◽  
Christian Raphel
Keyword(s):  
The Body ◽  
Body Orientation ◽  
Body Tilt ◽  
Vertical Position ◽  
Starting Position ◽  
Pitch Dimension ◽  
Cast Condition ◽  
Static Body ◽  
Body Cast

This study investigated the contribution of otolithic and somesthetic inputs in the perception of body orientation when pitching at very slow velocities. In Experiment 1, the subjects’ task was to indicate their subjective postural vertical, in two different conditions of body restriction, starting from different angles of body tilt. In the “strapped” condition, subjects were attached onto a platform by means of large straps. In the “body cast” condition, subjects were completely immobilized in a depressurized system, which attenuates gravity-based somesthetic cues. Results showed that the condition of body restriction and the initial tilt largely influenced the subjective postural vertical. In Experiment 2, subjects were displaced from a vertical position and had to detect the direction of body tilts. Results showed that the threshold for the perception of body tilt was higher when subjects were immobilized in the body cast and when they were tilted backward. Experiment 3 replicated the same protocol from a supine starting position. Compared to results of Experiment 2, the threshold for the perception of body tilt decreased significantly. Overall, these data suggested that gravity-based somesthetic cues are more informative than otolithic cues for the perception of a quasi-static body orientation.

scholarly journals Rhythmic modulation of visual perception by continuous rhythmic auditory stimulation

2021 ◽  
pp. JN-RM-2980-20
Author(s):  
Anna-Katharina R. Bauer ◽  
Freek van Ede ◽  
Andrew J. Quinn ◽  
Anna C. Nobre
Keyword(s):  
Visual Perception ◽  
Auditory Stimulation ◽  
Rhythmic Auditory Stimulation
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