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Full-Text Articles in Medicine and Health Sciences
Temporospatial Characteristics Of The Effect Of A Sound On The Response To Another Sound In Neurons In The Rat Auditory Midbrain, Olivia Elizabeth Sauvé
Temporospatial Characteristics Of The Effect Of A Sound On The Response To Another Sound In Neurons In The Rat Auditory Midbrain, Olivia Elizabeth Sauvé
Electronic Theses and Dissertations
The soundscape of a natural environment can often contain multiple complex sounds, which are perceived binaurally, i.e., by both ears. Under such conditions, the perception of one sound can be affected by another sound. This study was conducted to find the neural basis of such a perceptual phenomenon. The rat is used as an animal model. Action potentials were recorded from individual neurons within the rat inferior colliculus in response to acoustic stimulation. The inferior colliculus is an auditory midbrain structure which receives converging inputs from many other structures along the auditory pathway. It plays a significant role in the …
Studies Of Chemosensory Responses In The Pharynx Of The Sea Lamprey (Petromyzon Marinus), Hasan Huseyin Polat
Studies Of Chemosensory Responses In The Pharynx Of The Sea Lamprey (Petromyzon Marinus), Hasan Huseyin Polat
Electronic Theses and Dissertations
The sea lamprey is a basal vertebrate, and the oldest extant species with taste buds. The objective of this thesis was to study the chemosensory responses from the sea lamprey’s pharynx, which is located caudal to oral cavity and medial to seven lateral brachiopores. The pharynx contains taste buds that detect and respond to tastants to inform lampreys about gustatory factors in the environment. The location of these taste buds along the lateral surface of the pharynx was first determined using scanning electron microscopy. Then using electrophysiology, our recordings from these pharyngeal regions containing taste buds picked up responses from …