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Responses Of Neurons In The Rat's Inferior Colliculus To A Sound Are Affected By Another Sound In A Temporal- And Spatial-Dependent Manner, Sarah Tran
Electronic Theses and Dissertations
In a natural acoustic environment, our perception to a sound of interest can be affected by an interfering sound. To understand the neural bases of this phenomenon, we used rats to study sound-driven activities in the auditory midbrain, namely the inferior colliculus. As a major central auditory processing center, the inferior colliculus receives a lion’s share of convergent inputs from other auditory structures on both sides of the brain. The neurons of the inferior colliculus are predominantly excited by stimulations to the contralateral ear and inhibited by stimulations to the ipsilateral ear. Integration of these excitatory-inhibitory inputs enable neurons in …
The Effect Of A Leading Sound On The Local-Field Potentials Elicited By A Trailing Sound In The Rat’S Inferior Colliculus, Syed Anam Asim
The Effect Of A Leading Sound On The Local-Field Potentials Elicited By A Trailing Sound In The Rat’S Inferior Colliculus, Syed Anam Asim
Electronic Theses and Dissertations
The perception of one sound can be influenced by another sound in the environment, with the effect dependent on the spectrotemporal and spatial relationship between the sounds. Mechanisms responsible for this perceptual phenomenon is dependent on the integration of neural signals driven by the two ears in brain centers responsible for hearing. The inferior colliculus (IC) as a midbrain structure is important for the processing of acoustic information. To understand why/how the perception of one sound is influenced by another sound, it is important to study how the two sounds interact with each other in generating responses in the IC. …