Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"acoustic startle response"”.
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Acoustic Startle Response in High and Low Hostiles Before And After A Cold Pressor Task
High-hostiles exhibit exaggerated physiological responses to stressors as seen by increased cardiovascular reactivity (BP & HR) (Rhodes, Harrison, & Demaree, 2002; Demaree & Harrison, 1997). This exaggerated physiological response style is associated with cardiovascular disease and premature death …
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AN EXAMINATION OF CHANGES IN THE SOUND ENVIRONMENT AS MODULATORS OF THE HUMAN ACOUSTIC STARTLE RESPONSE IN CONTROL AND TINNITUS SAMPLES
… goal of this project was to determine whether a startle reflex paradigm could be used as a detector of tinnitus symptoms. The startle response is a brainstem reflex, initiated by sudden change in the environment. Responses can be facilitated by embedding a startle stimulus in background noise, or …
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Prenatal stress alters fear-conditioned behaviors and the response to serotonergic drugs
… prenatally stressed (PS) rats, most notably the acoustic startle response and behavioral inhibition (i.e. freezing). PS rats do not differ in baseline peak startle responding, or in the habituation of the peak startle response when compared to the non-prenatally stressed (CON) rats. However, PS …
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Effects of Exposure to Perinatal Ultrasound Radiation on Information Processing in the Auditory System
… a locomotor task to test for appropriate motor responses. Acoustic startle and prepulse inhibition tests were administered to test for sensorimotor gating, hearing, and motor response. Finally, a brainstem auditory evoke potential test was given to track auditory threshold and appropriate neural …
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Noise-induced cochlear neuronal degeneration and its role in hyperacusis -- and tinnitus-like behavior
… hyperacusis and tinnitus often occur following acoustic overexposure. Although such exposure can also result in permanent threshold elevation, some individuals with noise-induced hyperacusis or tinnitus show clinically normal thresholds. Recent work in animals has shown that noise exposure can …
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Studies of generalized worry in college students
… motivational system was probed using the acoustic startle response, and startle modification by visually presented words was used to quantify threat perception across various stages of information processing. Chronic high worriers exhibited word-induced startle facilitation at all stages …
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mGluR5 Involvement in Methamphetamine Reward and the Co-Morbidity of Schizophrenia and Stimulant Use Disorders
… the use of pre-pulse inhibition (PPI) of the acoustic startle response. PPI is defined as a normal suppression of the startle response when a weaker acoustic stimulus is presented before a louder startling acoustic stimulus. The current dissertation project utilized Meth-induced CPP, motor …
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Characterization of a novel recombinant inbred mouse model of high fear
… and threat to trigger the appropriate adaptive responses ensuring species survival. However, aberrant expression of these emotions, and an inability to cope can lead to anxiety disorders such as post-traumatic stress disorder (PTSD), which manifest after exposure to a traumatic event or …