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 51 for “"Visual Discrimination"”.
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Visual discrimination and object/picture recognition in hens
… conducted to examine different aspects of hen’s visual behaviour, and to assess whether hens responded to photographs in the same way they do to the real objects that were depicted in the photographs. In Experiment 1, six hens were trained to perform either a conditional discrimination …
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The Effect of Timbre on Auditory-Visual Discrimination
Made available in DSpace on 2014-12-14T06:20:50Z (GMT). No. of bitstreams: 1 7811303.pdf: 9233205 bytes, checksum: 6ed82aef9f12c5e3ce482d3396f49010 (MD5) Previous issue date: 1978
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An exploration of pre-attentive visual discrimination using event-related potentials
… of the MMN are less well characterised in the visual domain. The five main studies presented in this thesis examine visual cortical processing using event-related potentials. Novel methodologies have been used to elicit visual detection and discrimination components in the absence of a …
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Visual discrimination as a function of stimulus size, shape, and edge-gradient
The basic response of the visual mechanism is the discrimination of changes in luminous intensity in the visual world. This discrimination consists of (1) detecting the presence of a signal, and (2) assigning this signal to a category which has definitive class properties (recognition). Detection: …
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Potential for change: Characterizing synaptic plasticity following visual discrimination learning in adult rats.
… to describe synaptic plasticity in the adult rat visual system after learning a simple visual discrimination task. Initially, a novel method is described providing a simple and noninvasive means to restrict visual input. Using a harness and face-mask for monocular occlusion, rats were trained in a …
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The effects of graduated stimulus change on learning efficiency in a visual discrimination task
… efficiency produced by two different methods of discrimination training among regular placement fifth-grade pupils. It was designed to explore possible between-group differences in rate of learning, length of training, mastery rate, recall of learning, and task persistence following training. The …
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Effects of Pretraining on the Visual Discrimination Learning Performance of 3-Month-Old Infants
… that infants who display shorter fixations to visual stimuli demonstrate more effective performances on visual task than infants who display longer fixations to visual stimuli. The purpose of this experiment was to study the effects of visual intervention upon the task performance of both short …
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The Efects of Dose and Time of Administration of Pentylenetetrazol on a Visual Discrimination Task
… doses differentially affected retention of a visual discrimination task in the rat as a function of time of administration after training was completed. Procedure: Using food reinforcement, 36 rats were trained to perform a brightness discrimination in a Y-maze until they reached a criterion …
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The Role of Parvalbumin Interneurons in Mouse Primary Visual Cortex during Visual Discrimination and Perceptual Learning
… Although increasing their activity may improve discrimination (Lee et al., 2012), findings are inconsistent and the role of PV cells has been under debate (Atallah et al., 2012; El-Boustani et al., 2014; Wilson et al., 2012). The primary visual cortex (V1) has an early and a late phase of …
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Effects of Habitual and Contingency Experience on the Visual Discrimination Learning and Decision Time of 4-Month-Old Infants
… experiences aimed at promoting exhaustive visual scanning of stimuli to enhance visual discrimination learning. There were three phases to this study. Phase 1 was an assessment of all infants' natural attending behavior to compare to existing laboratory norms. Phase 2 consisted of the …
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School aged children: Visual perception and reversal recognition of letters and numbers separately and in context
Visual discrimination, spatial orientation, and recognition of letters and numbers in context are important issues in helping young students achieve good literacy and numeracy standards. Thus, measures of Visual Discrimination of Upper Case Letters (VDUCL), Visual Discrimination of Lower Case …
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A study of the effectiveness of two methods of practicing high frequency words
… effects of two methods of practicing words: (1) visual discrimination and (2) copying. Both methods were designed to facilitate the retention of words. Two hundred fifty-four kindergarten subjects in twelve intact classrooms received twenty-five minutes of instruction on five high frequency words …
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A Design For Kindergarten Learning Centers Based on Research in Reading Readiness, Learning Theory, and Learning Centers
… of experience, oral language skill, auditory discrimination, visual discrimination, following directions, and associative learning were found to be significantly related to success in beginning reading and acquirable by training. It was concluded that before decisions can be made as to which …
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Visual Processing Ability: Early Predictor Of Inferential Language And Phonemic Awareness Ability
… a statistically significant relationship among visual processing, inferential language, and phonemic awareness ability. All participants attended Model Laboratory school, passed a visual and hearing screening, spoke English as the primary language in their household, possessed no history of …
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Pre-Reading Visual Exercises for Disadvantaged Children
… materials for auto-instruction in developing visual discrimination skills at the pre-reading level. The tapes and materials were specifically designed to meet the needs of first grade children from a low socio-economic environment in Calgary, Alberta.
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The Influence of Study Time on Memory and Recognition of Structural Properties in Paintings: A Developmental Study
… also, to examine the developmental influence of visual discrimination. In the research, study time and categories were manipulated in three grade levels.
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Interhemispheric transfer in a marsupial : a behavioural investigation of interhemispheric transfer of visual information in Trichosurus vulpecula
… the optic chiasma were trained monocularly in a visual discrimination task, as were four which had, in addition, mid-saggital sections of the anterior commissure, fasciculus aberrans and hippocampal commissure. All were tested for transfer to the untrained hemisphere. The results showed that …
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Cognitive and Perceptual-Motor Indicators of Lateralized vs. Diffuse Brain Damage in Adults.
… of Neuromuscular Development (MAND) and Haptic Visual Discrimination Test (HVDT), from the McCarron-Dial System Neuropsychological Assessment Battery (MDS), in ascertaining the presence or absence of brain damage as well as location of lesion. The classification accuracies of using performance …
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The Development of a Reading Readiness Program Designed to be Implemented into a Kindergarten Curriculum
… were; language development, listening skills, visual discrimination, visual memory, auditory discrimination, auditory memory and perceptual motor development. Over all goals for the project were also developed. Each of the seven areas discussed included; objectives, activities and assessment …
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