559 Physiological mechanism, determining time boundary of the perception of sound source movement simulated by intensity change

1998 ◽  
Vol 30 (1-2) ◽  
pp. 213-214
Author(s):  
I.G. Andreeva ◽  
I.A. Vartanian
Keyword(s):  
Sound Source ◽  
Physiological Mechanism ◽  
Intensity Change ◽  
Sound Source Movement ◽  
Time Boundary

scholarly journals Early multisensory integration of self and source motion in the auditory system

2016 ◽  
Vol 113 (29) ◽  
pp. 8308-8313 ◽  
Author(s):  
Eyal Wigderson ◽  
Israel Nelken ◽  
Yosef Yarom
Keyword(s):  
Auditory System ◽  
Sound Source ◽  
Sensory Information ◽  
Dorsal Cochlear Nucleus ◽  
Head Direction ◽  
Sound Stimulation ◽  
Sound Source Movement ◽  
To Receive ◽  
The Brain ◽  
Source Motion

Discriminating external from self-produced sensory inputs is a major challenge for brains. In the auditory system, sound localization must account for movements of the head and ears, a computation likely to involve multimodal integration. Principal neurons (PNs) of the dorsal cochlear nucleus (DCN) are known to be spatially selective and to receive multimodal sensory information. We studied the responses of PNs to body rotation with or without sound stimulation, as well as to sound source rotation with stationary body. We demonstrated that PNs are sensitive to head direction, and, in the presence of sound, they differentiate between body and sound source movement. Thus, the output of the DCN provides the brain with enough information to disambiguate the movement of a sound source from an acoustically identical relative movement produced by motion of the animal.

Auditory cortical neurons in the cat sensitive to the direction of sound source movement

1974 ◽  
Vol 73 (3) ◽  
pp. 455-471 ◽  
Author(s):  
Anssi R.A. Sovija¨rvi ◽  
Juhani Hyva¨rinen
Keyword(s):  
Sound Source ◽  
Cortical Neurons ◽  
Sound Source Movement

Obesity and adiposity: the culprit of dietary protein efficacy

2020 ◽  
Vol 134 (4) ◽  
pp. 389-401
Author(s):  
Carla El-Mallah ◽  
Omar Obeid
Keyword(s):  
Food Intake ◽  
Behavioural Change ◽  
Physiological Mechanism ◽  
Short Term ◽  
The Past ◽  
Body Adiposity ◽  
Reduce Sugar ◽  
Eye Opening ◽  
Potential Strategy ◽  
Limitations And Exceptions

Abstract Obesity and increased body adiposity have been alarmingly increasing over the past decades and have been linked to a rise in food intake. Many dietary restrictive approaches aiming at reducing weight have resulted in contradictory results. Additionally, some policies to reduce sugar or fat intake were not able to decrease the surge of obesity. This suggests that food intake is controlled by a physiological mechanism and that any behavioural change only leads to a short-term success. Several hypotheses have been postulated, and many of them have been rejected due to some limitations and exceptions. The present review aims at presenting a new theory behind the regulation of energy intake, therefore providing an eye-opening field for energy balance and a potential strategy for obesity management.

Role of pinnae and head movements in localizing pure tones 1The authors would like to thank Mr. Remi Humbert for implementing the experiment in Turbo Pascal and for his further assistance.

1999 ◽  
Vol 58 (3) ◽  
pp. 170-179 ◽  
Author(s):  
Barbara S. Muller ◽  
Pierre Bovet
Keyword(s):  
Sound Source ◽  
Head Movement ◽  
Movement Analysis ◽  
Head Movements ◽  
Sound Sources ◽  
Localization Accuracy ◽  
Sound Effects ◽  
Posterior Quadrant ◽  
Localization Performance ◽  
Pure Tones

Twelve blindfolded subjects localized two different pure tones, randomly played by eight sound sources in the horizontal plane. Either subjects could get information supplied by their pinnae (external ear) and their head movements or not. We found that pinnae, as well as head movements, had a marked influence on auditory localization performance with this type of sound. Effects of pinnae and head movements seemed to be additive; the absence of one or the other factor provoked the same loss of localization accuracy and even much the same error pattern. Head movement analysis showed that subjects turn their face towards the emitting sound source, except for sources exactly in the front or exactly in the rear, which are identified by turning the head to both sides. The head movement amplitude increased smoothly as the sound source moved from the anterior to the posterior quadrant.

A Perceptual Bias for Accelerated Intensity Change: An Evolved Mechanism?

2002 ◽  
Author(s):  
John G. Neuhoff ◽  
Kimberly Fukai ◽  
John Preston ◽  
Kate Willaman
Keyword(s):  
Perceptual Bias ◽  
Intensity Change
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