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Articles 1 - 20 of 20
Full-Text Articles in Neuroscience and Neurobiology
Immunolesions Using Site Specific Injections Of 192-Lgg Saporin Into The Basal Forebrain Fail To Affect Radial Arm Maze Performance In The Male Rat, Lesley J. Hickman '96
Immunolesions Using Site Specific Injections Of 192-Lgg Saporin Into The Basal Forebrain Fail To Affect Radial Arm Maze Performance In The Male Rat, Lesley J. Hickman '96
Honors Projects
In this study I investigated the effects of 192-lgG saporin injections into the medial septal area.(MSA) and nucleus basalis magnocel/ularis (NBM) on radial arm maze performance in the male rat. The results of the present study reveal that combined injections of 192-lgG saporin into the basal forebrain failed to disrupt RAM performance when compared to vehicle-injected controls. In addition, intraperitoneal injections using a muscarinic receptor blocker, scopolamine, failed to reveal a compensatory response of the cholinergic basal forebrain that may have explained the lack of behavioral effects of 192IgG saporin. Consequently, the results of this study suggest that a selective …
Visual Cortical Plasticity Following Unilateral Sensorimotor Cortical Lesions In The Neonatal Rat, Eleftherios Stelios Papathanasiou
Visual Cortical Plasticity Following Unilateral Sensorimotor Cortical Lesions In The Neonatal Rat, Eleftherios Stelios Papathanasiou
Master's Theses
No abstract provided.
Topographically Specific Effects Of Elf-1 On Retinal Axon Guidance In Vitro And Retinal Axon Mapping In Vivo, Masaru Nakamoto
Topographically Specific Effects Of Elf-1 On Retinal Axon Guidance In Vitro And Retinal Axon Mapping In Vivo, Masaru Nakamoto
Biology Faculty Publications
Topographic maps, which maintain the spatial order of neurons in the order of their axonal connections, are found throughout the nervous system. In the visual retinotectal projection, ELF-1, a ligand in the tectum, and its receptors in the retina show complementary gradients in expression and binding, indicating they may be positional labels for map development. Here we show that ELF-1 acts as a repellent axon guidance factor in vitro. In vivo, when the tectal ELF-1 pattern is modified by retroviral overexpression, retinal axons avoid ectopic ELF-1 patches and map to abnormally anterior positions. All these effects were seen on axons …
Bird Aversive Properties Of Methyl Anthranilate, Yucca, Xanthoxylum, And Their Mixtures, Larry Clark, Bruce Bryant, Igor Mezine
Bird Aversive Properties Of Methyl Anthranilate, Yucca, Xanthoxylum, And Their Mixtures, Larry Clark, Bruce Bryant, Igor Mezine
Larry Clark
We tested the bird aversive properties of methyl anthranilate, yucca extracts, and Xanthoxylum spp. extracts in one- and two-bottle drinking assays that used European starlings (Sturnus vulgaris). In one- and two-bottle tests, methyl anthranilate proved to be the more potent stimulus in producing an avoidance response. Starlings avoided consuming Xanthoxylum and yucca only in the two-bottle tests. Previous studies showed that yucca was a good adjuvant in stabilizing lipophilic compounds in water. Starlings did not avoid binary mixtures of methyl anthranilate and yucca differently from what would be expected if they were only responding to the solution's methyl anthranilate content. …
Grazing Repellency Of Methyl Anthranilate To Snow Geese Is Enhanced By A Visual Cue, J. Russell Mason, Larry Clark
Grazing Repellency Of Methyl Anthranilate To Snow Geese Is Enhanced By A Visual Cue, J. Russell Mason, Larry Clark
Larry Clark
Methyl anthranilate (Rejex-It AG-36) is formulated as a commercial goose repellent. Frequent reapplications of this product are often necessary, and the cost/application is high ($300.00/ha). The present experiment tested the possibility that the repellency of methyl anthranilate might be enhanced by the addition of visual cues. Twelve 0.4 ha plots were assigned randomly to three treatment groups. Plots in the first group (n = 4) were sprayed with 10% Vapor Guard (an agrochemical adhesive). Plots in the second group (n = 4) were treated with a mixture of methyl anthranilate (3.4 kg/ha) and Vapor Guard. Plots in the third group …
Avoidance Of Cabbage Fields By Snow Geese, J. Russell Mason, Larry Clark
Avoidance Of Cabbage Fields By Snow Geese, J. Russell Mason, Larry Clark
Larry Clark
now Goose activity levels were significantly less in cabbage fields than in control fields. Although the data do not unambiguously address the issue of sulfur repellency, we believe that the activity difference is consistent with avoidance of the former and not preference for the latter. Sulfurous volatiles were readily apparent to us during our visits to cabbage fields throughout the study period. Similar odors were not detected in control fields. If sulfurous volatiles were important, then avoidance could reflect some characteristic of the cover crop (e.g., unpalatability acquired through the absorption and translocation of degra dation products) or it could …
The Shape Of Self-Motion Perception. Ii. Framework And Principles For Simple And Complex Motions, Jan E. Holly, Gin Mccollum
The Shape Of Self-Motion Perception. Ii. Framework And Principles For Simple And Complex Motions, Jan E. Holly, Gin Mccollum
Gin McCollum
There have been numerous experimental studies on human perception and misperception of self-motion and orientation relative to the earth, each focusing on one or a few types of motion. We present a formal framework encompassing many types of motion and including all angular and linear components of velocity and acceleration. Using a mathematically rigorous presentation, the framework defines the space of all possible motions, the map from motion to sensor status, the space containing each possible status of the sensors, and the map from sensor status to perceived motion. The shape of the full perceptual map from actual motion to …
The Stomatogastric Nervous System: A Formal Approach, Patrick D. Roberts, Gin Mccollum
The Stomatogastric Nervous System: A Formal Approach, Patrick D. Roberts, Gin Mccollum
Gin McCollum
A discrete mathematical formalism (d-space) which is specifically designed to investigate discrete aspects of behavior is applied to the foregut of decapod crustacea. This approach differs from continuous modeling techniques in that the analysis determines a structure in which the observed behavior of the foregut is constrained. A notation for the implementation of the formalism is developed as well as a coordinate system natural to the functioning of the gastric mill. The formalism is used to organize previous observations that suggest potential courses of further experimental investigation. A detailed analysis of observed chewing modes of the gastric mill is presented, …
Dopamine Overflow In The Nucleus Accumbens During Extinction And Reinstatement Of Cocaine Self-Administration Behavior, Laura O'Dell
Dopamine Overflow In The Nucleus Accumbens During Extinction And Reinstatement Of Cocaine Self-Administration Behavior, Laura O'Dell
Laura Elena O'Dell
No abstract provided.
Dose-Dependent Characterization Of The Rewarding And Stimulant Properties Of Cocaine Across Intraperitoneal And Intravenous Routes Of Administration, Laura O'Dell
Laura Elena O'Dell
No abstract provided.
Differential Effects Of Intra-Accumbens Sulpiride On Cocaine-Induced Locomotion And Conditioned Place Preference, Laura O'Dell
Differential Effects Of Intra-Accumbens Sulpiride On Cocaine-Induced Locomotion And Conditioned Place Preference, Laura O'Dell
Laura Elena O'Dell
No abstract provided.
The Effects Of Aging And Musical Experience On The Representation Of Tonal Hierarchies, Andrea Halpern, S.Y. Kwak, J.C. Bartlett, W.J. Dowling
The Effects Of Aging And Musical Experience On The Representation Of Tonal Hierarchies, Andrea Halpern, S.Y. Kwak, J.C. Bartlett, W.J. Dowling
Faculty Journal Articles
Two experiments explored the representation of the tonal hierarchy in Western music among older (aged 60 to 80) and younger (aged 15 to 22) musicians and nonmusicians. A probe tone technique was used: 4 notes from the major triad were presented, followed by 1 note chosen from the 12 notes of the chromatic scale. Whereas musicians had a better sense of the tonal hierarchy than nonmusicians, older adults were no worse than younger adults in differentiating the notes according to musical principles. However, older adults were more prone than younger adults to classify the notes by frequency proximity (pitch height) …
Hearing In The Mind's Ear: A Pet Investigation Of Musical Imagery And Perception, Robert J. Zatorre, Andrea R. Halpern, David W. Perry, Ernst Meyer, Alan C. Evans
Hearing In The Mind's Ear: A Pet Investigation Of Musical Imagery And Perception, Robert J. Zatorre, Andrea R. Halpern, David W. Perry, Ernst Meyer, Alan C. Evans
Faculty Journal Articles
Neuropsychological studies have suggested that imagery processes may be mediated by neuronal mechanisms similar to those used in perception. To test this hypothesis, and to explore the neural basis for song imagery, 12 normal subjects were scanned using the water bolus method to measure cerebral blood flow (CBF) during the performance of three tasks. In the control condition subjects saw pairs of words on each trial and judged which word was longer. In the perceptual condition subjects also viewed pairs of words, this time drawn from a familiar song; simultaneously they heard the corresponding song, and their task was to …
The Impact Of Sick Building Syndrome On Selected Variables Associated With School Effectiveness, Caryl Shannon Felty
The Impact Of Sick Building Syndrome On Selected Variables Associated With School Effectiveness, Caryl Shannon Felty
Dissertations, Theses, and Masters Projects
Using matched pairs of schools having a diagnosis of Sick Building Syndrome (SBS) and those not identified, and not having the potential of being identified as having the diagnosis, this study examined the relationship between factors assumed or determined to have an impact on a school's ability to carry out its mission as they related to the SBS diagnosis. The factors studied were student average daily attendance (ADA); students' mean standardized test scores in math and reading on the Iowa Test of Basic Skills and the Tests of Achievement and Proficiency; the need for students to take prophylactic medications; the …
Guided Imagery As A Psychoneuroimmunological Intervention For Hiv-Positive Individuals, Christopher Dale Keene
Guided Imagery As A Psychoneuroimmunological Intervention For Hiv-Positive Individuals, Christopher Dale Keene
Dissertations, Theses, and Masters Projects
No abstract provided.
A Study Of The Effect Of Interactive Language In The Stimulation Of Cognitive Functioning For Students With Learning Disabilities, Kathleen Ricards Hopkins
A Study Of The Effect Of Interactive Language In The Stimulation Of Cognitive Functioning For Students With Learning Disabilities, Kathleen Ricards Hopkins
Dissertations, Theses, and Masters Projects
Much can be gained by applying knowledge and insight gleaned from the field of neuropsychology to the field of education. Diagnosis and treatment of learning disabilities (LD) could be enhanced through an increased understanding of neurolinguistic functioning. The present study examined the effect of five instructional techniques aimed at stimulating the cognitive functioning of students with diagnosed learning disabilities. The defining characteristic of each of the five techniques is the use of interactive dialogue to stimulate oral language production leading to greater cognitive efficiency. Evidence is presented for the need for interhemispheric collaboration in complex linguistic tasks such as reading, …
Schizotypy And Extroversion-Introversion: Correlation And Electrodermal Activities In Emotions, Kai Qu
Schizotypy And Extroversion-Introversion: Correlation And Electrodermal Activities In Emotions, Kai Qu
Dissertations, Theses, and Masters Projects
No abstract provided.
Neuropsychological Function, Recidivism, And Community Adjustment Of The Mentally Ill Chemically Addicted (Mica) Patient, Robert Warren Smith
Neuropsychological Function, Recidivism, And Community Adjustment Of The Mentally Ill Chemically Addicted (Mica) Patient, Robert Warren Smith
Dissertations, Theses, and Masters Projects
No abstract provided.
Brain Activation Modulated By Sentence Comprehension, Marcel Adam Just, Patricia A. Carpenter, Timothy A. Keller, William F. Eddy, Keith R. Thulborn
Brain Activation Modulated By Sentence Comprehension, Marcel Adam Just, Patricia A. Carpenter, Timothy A. Keller, William F. Eddy, Keith R. Thulborn
Marcel Adam Just
No abstract provided.
Trigeminal Repellents Do Not Promote Conditioned Odor Avoidance In European Starlings, Larry Clark
Trigeminal Repellents Do Not Promote Conditioned Odor Avoidance In European Starlings, Larry Clark
Larry Clark
Birds, and in particular European Starlings (Stumus vulgaris), avoid con sumption of fluid and food treated with the natural plant products, methyl anthranilate and o-aminoacetophenone. Avoidance is an unlearnedresponse most likely mediated via chem ically sensitive fibers of the trigeminal nerve. The trigeminal nerve codes for chemical irritation and pain. Starlings are not repelled by the odor of the compounds, nor is olfaction important in the avoidance response. Moreover, starlings fail to learn to avoid the odor of the repellents, even after direct oral contact with liquid repellent. While trigeminal irritants can be powerful repellents, the absence of associative learning …