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 103 for “"vocalization"”.
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Immunohistochemical study of laterodorsal tegmental neurons active during 22kHz vocalization /
… was implicated in the initiation of ultrasonic vocalization. The goal of this study was to histochemically examine the activity the LDT following ultrasonic calls induced by two methods. It was hypothesized that cholinergic LDT cells would be more active during air puffinduced vocalization than …
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Cell Type-Specific Roles of FoxP Transcription Factors in Vocalization and Cognition
… important functions in neural circuits mediating vocalization and sensorimotor learning. Their known gene targets regulate neuronal development, activity, and plasticity, and animal models of FoxP2 and FoxP1 function have linked some of these molecular functions with neurophysiological and …
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Structure and social significance of vocalization by Anolis grahami grahami (Sauria: Iguanidae)
Even though the ability to produce vocalizations by the vibration of a membrane is widespread throughout the lizard suborder, only the sounds of geckos (Gekkonidae) have been closely studied. The purposes of this study were to describe the physical structure, social significance, and means of sound …
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Early and Late Stage Mechanisms for Vocalization Processing in the Human Auditory System
… elements of the incoming acoustic stream. Vocalizations produced by other humans (conspecifics) likely represent the most ethologically-relevant sounds encountered by hearing individuals. Subtle acoustic characteristics of these vocalizations aid in determining the identity, emotional …
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The role of the GABAergic system in the production of ultrasonic vocalization in rats /
Ultrasonic vocalization plays an important role in intraspecies communication for rats. It has been well demonstrated that rats will emit 22kHz vocalization in stressfiil or threatening situations. Although the neural mechanism underlying vocahzation is not well understood, it is known that …
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New Insights into the Evolution of Learned Vocalization from the Australian Zebra Finch, Taeniopygia castanotis
<p>The common goal of my thesis is to understand the causative events in evolution that produced a clade of song learning birds from non-song learning ancestors.This information is important for shedding light on the evolution of spoken language in our own human lineage, where evolutionary analyses …
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INTRACRANIAL INFUSIONS OF NEUROTENSIN AGONISTS PRODUCE AN ANXIOLYTIC PROFILE IN A RAT ULTRASONIC VOCALIZATION MODEL
… the number of fear-induced 22-kHz ultrasonic vocalizations (USVs) produced by male Wistar rats. A reduction in the number of 22-kHz USV calls is indicative of an anxiolytic effect. The current study used a USV model to evaluate the effects of PD149163 (0.1, 1.0, and 10.0 ng) and endogenous NT …
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The Effects of a Humanoid Robot's Non-lexical Vocalization on Emotion Recognition and Robot Perception
As robots have become more pervasive in our everyday life, social aspects of robots have attracted researchers' attention. Because emotions play a key role in social interactions, research has been conducted on conveying emotions via speech, whereas little research has focused on the effects of …
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Effects of prenatal alcohol exposure on pup development and vocalization behavior and on dam retrieval behavior
… and on the functional efficacy of pup vocalizations on the maternal behavior of the dam. Subjects were 72 dams and their litters. Dams were matched by weight and assigned to either an Ethanol (EtOH), a Pair-fed (PF), or an Untreated Control (UC) group. Ethanol dams received 15% ethanol …
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A Comparison of Current Anuran Monitoring Methods with Emphasis on the Accuracy of Automatic Vocalization Detection Software
… machine-learning computer software, automated vocalization recognition software (AVRS), has been developed to automatically detect vocalizations within digital sound recordings. The use of a combination of ADRS and AVRS shows the promise to reduce the number of people, time, and resources …
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Vocalization Behavior of the Endangered Bahama Oriole (Icterus northropi): Ontogenetic, Sexual, Temporal, Duetting Pair, and Geographic Variation
Many birds communicate via a diverse set of vocalizations, but the contexts, roles, and structure of their varied songs and calls may change with age, differ between sexes, and vary temporally and geographically. In New World orioles, most tropical species exhibit the ancestral states of sexual …
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Emergence of vocalization in non vocal children with a diagnosis of autism: building an evidence base for interventions
… design across subjects. Mastery criteria for vocalization for each participant was n=7 first instances of speech. Experiment 1 studied the role of stimulus-stimulus pairing (SSP) during sign-mand training on vocal emergence in 58 participants of whom 83% acquired vocal status. Experiment 2 …
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The effects of imprinting stimulus availability and temperature on vocalization and motoric behaviors of the neonatal domestic chick
… motoric behaviors and three of which concerned vocalizations. A 2 X 2 (stimulus availability X temperature) within subjects analysis of variance for each factor was also performed. These results show that motoric behavior was largely affected by the availability of the imprinted stimulus. …
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Expanding the Corpus of Vocalized Hebrew Text: Compiling an Unvocalized Text Corpus and Building an Online Interface for Vocalization Annotation
… because modern Hebrew text often lacks vocalization. The lack of available vocalized Hebrew data can lead to ambiguity in training these models and generally hinders work on natural language processing problems. The goal of this project is to contribute to the collection of vocalized …
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The Experimental Use of Operant Procedures with Language Delayed Children
… of this study: (1) To compare the amount of vocalization produced by each child before the experiment with the amount of vocalization during and after the application of operant conditioning techniques. (2) To compare the variations in the vocalization produced by the children. (3) To explore …
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Social Behavior of the Mongolian Gerbil (Meriones Unguiculatus, Milne-Edwards) With Special Reference to Allogrooming (Part I) and Ultrasonic Vocalization (Part Ii)
Made available in DSpace on 2014-12-12T01:27:34Z (GMT). No. of bitstreams: 1 7121241.pdf: 4594246 bytes, checksum: 4489dbeb9dd750c32eff87c44f99b93a (MD5) Previous issue date: 1971
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Vocal communications among Harbor Seals (Phoca vitulina) on land
Harbor seal (Phoca vitulina) vocalizations have been studied across different regions of their distribution and such studies can be used to understand interactions as well as how different environmental factors may affect them. For the first time, this study investigates the different vocalization …
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Cooperative rule-learning: a metacognitive interpretation
<p>Effects of vocalization of reasoning, and working with a partner, on rule-learning tasks were investigated. Subjects completed eight rule-learning problems, while working alone or as pairs. The trials to solution, proportion of untenable hypotheses, strategy efficiency, and decision time were …
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