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 20 of 78 for “"auditory stimuli"”.
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Estimating Nonorganic Hearing Thresholds Using Binaural Auditory Stimuli
The Stenger Principle describes the observation that when two tones of the same frequency are presented simultaneously, a single tone is perceived only in the ear in which the tone is louder. This principle underlies the Stenger Test, which is used to identify the presence of unilateral nonorganic …
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Nonlinear Representation of Auditory Stimuli Across the Auditory Cortex
… neural evoke activity to pure tones in primary auditory cortex has been systematically studied for many years, as has the spatial organization of these responses. Unlike pure tones, natural sounds possess complex spectro-temporal structures across frequencies. How simple tuning properties scale …
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Habituation to Auditory Stimuli by Captive African Elephants (Loxodonta Africana)
… sensory system and may habituate to stimuli that could be used for enrichment and/or management. The aim of this study was to examine the habituation process of elephants in response to repeated presentations of two auditory stimuli –buzzing by a disturbed beehive and the sound of …
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Event-Related Potentials Correlated with State/Trait Anxiety Using Auditory Stimuli
… the use of event-related potentials (ERPs) and auditory stimuli. Prior research has focused on anxiety, visual stimuli, experimental tasks, and how ERP components relate to them. Few of the studies used auditory stimuli. This study proposes that the P2, P3, and late positive potential (LPP) ERP …
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Adaptability of Human Gait: Exploring Red Noise Auditory Stimuli and Gait Fluctuation Patterns
… is important for understanding gait, and that stimuli can influence gait variability. The present study was performed to test for an adaptability limit and to analyze stepping strategies used for entraining gait. The study used Detrended Fluctuation Analysis to analyze gait variability, …
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Real-time detection of auditory : steady-state brainstem potentials evoked by auditory stimuli
The auditory steady-state response (ASSR) is advantageous against other hearing techniques because of its capability in providing objective and frequency specific information. The objectives are to reduce the lengthy test duration, and improve the signal detection rate and the robustness of the …
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A Factorial Study of the Meaning of Complex Auditory Stimuli (Passive Sonar Sounds)
Made available in DSpace on 2014-12-03T23:50:37Z (GMT). No. of bitstreams: 1 0009147.pdf: 4756378 bytes, checksum: ba5456a1800467dffae8718b7154b5db (MD5) Previous issue date: 1954
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The Effects of Auditory Stimuli at Various Intensity Levels Upon Selectedphysiological Measures of Arousal
Made available in DSpace on 2014-12-10T17:03:19Z (GMT). No. of bitstreams: 1 6706768.pdf: 3799235 bytes, checksum: eabc70c39a87a84c051bf3861773e770 (MD5) Previous issue date: 1966
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Physiological and behavioral responses of genetic lines of chickens to physical and auditory stimuli
… to enhance chicken-human relationships, and auditory playbacks of contentment calls were used as husbandry procedures in the context of environmental enrichment. Socialization involved gentle handling of a sample of the birds while playbacks were of 30 minute duration. Both were conducted …
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A Naturalistic Study of Long-term Working Memory Capacity for Meaningful Visual and Auditory Stimuli
<p>The purpose of this study was to explore long-term working memory in experts in an information-rich, dynamic domain. Of particular interest were strategies experts use to enhance long-term working memory capacity when working with verbal versus aural information. Three air traffic control …
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What Do We Know about the Bilingual Advantage When the Executive Functioning Performance Is Tested Using Auditory Stimuli? A Systematic Review
… attend, perceive, process and respond to the stimuli around them as they conduct different tasks. Many of these tasks may require auditory perception and processing and involve verbal communication. For many of us, our verbal environment involves more than one language. Some researchers argue …
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Automatic Processing of Musical and Phonemic Sounds: Differences Between Musicians and Nonmusicians
… focused on a video and were instructed to ignore auditory stimuli. Simultaneous to the video presentation, auditory stimuli (60dB) in an oddball paradigm (80% standard, 20% deviant) were presented in 4 conditions (500 stimuli each): chord, phoneme, chord interval, and tone interval. EEG was …
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A disjunctive analysis of neonatal approach stimulus prepotence
… to investigate the relative importance of auditory and visual stimuli in eliciting initial approach and following responses in domestic fowl. 72 Canadian Athens random-bred chicks were tested at 24 or 36 hours post-hatch. A repetitive, tapping tone (4 per sec., 50 msec. duration, 500 Hz) …
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Experimental analysis of specific auditory-light safety belt reminder systems and safety belt behavior: "prods" or "prompts"
… allowed for the manipulation of different auditory reminder stimuli (i.e., chime, buzzer, and voice), temporal factors (e.g., presentation delays and second reminders) I and the measurement of the driver's safety belt use. Three modifications were explored: the presentation of a Delayed …
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THE ROLE OF THE CAT’S ANTERIOR ECTOSYLVIAN CORTEX IN
… are critical for orientation to multisensory stimuli. However, whether AES also plays a role in orientation to unisensory auditory stimuli is not yet clear. Some studies have shown that AES deactivation does not produce unisensory (visual or auditory) orientation deficits, consistent with …
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What Next? Unpacking Anticipatory EEG Oscillations in Auditory, Tactile and Visual Modalities: Relations with Behavior and Executive Function in Children and Adults
… of anticipatory attention to visual, tactile and auditory stimuli with inter- and intra-individual variation in executive function (EF) abilities. Consistent with prior findings (Weiss, Meltzoff, & Marshall, 2018), the sensorimotor mu rhythm in the alpha range of the EEG signal was suppressed in …
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The plasticity of the human perceptual systems in processing auditory- and spatial-frequencies
A common technique in research on visual and auditory perception is to embed stimuli in noise. The traditional assumption is that, when noisy stimuli are repeatedly presented to an observer, each noise component remains equally unpredictable. I challenged that assumption by running two experiments …
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The within-subjects partial reinforcement extinction effect: stimulus similarity as a controlling factor
… (PR) reinforcement in the presence of two auditory stimuli differing in amount of similarity along a frequency dimension. Results revealed that in the groups where stimulus similarity was least, a within-subjects reversed partial reinforcement extinction effect (PREE) was found. The results …
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Spatial and temporal factors in visual-auditory interaction
… and trajectories of saccades toward visual and auditory targets in various experiments. The Two-Stage Model of visual-auditory interaction introduced by Colonius & Arndt (2001) was applied to the data. This prohabilistic approach describes at the first stage the peripheral processing of visual …
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