Psychology Commons^™

Brainstem Cholinergic Modulation Of Muscle Tone In Infant Rats, Andrew J. Gall, Amy Poremba, Mark S. Blumberg

Faculty Publications

In week-old rats, lesions of the dorsolateral pontine tegmentum (DLPT) and nucleus pontis oralis (PnO) have opposing effects on nuchal muscle tone. Specifically, pups with DLPT lesions exhibit prolonged bouts of nuchal muscle atonia (indicative of sleep) and pups with PnO lesions exhibit prolonged bouts of high nuchal muscle tone (indicative of wakefulness). Here we test the hypothesis that nuchal muscle tone is modulated, at least in part, by cholinergically mediated interactions between these two regions. First, in unanesthetized pups, we found that chemical infusion of the cholinergic agonist carbachol (22 mM, 0.1 µL) within the DLPT produced high muscle …

Divisions Within The Posterior Parietal Cortex Help Touch Meet Vision, Catherine L. Reed

CMC Faculty Publications and Research

The parietal cortex is divided into two major functional regions: the anterior parietal cortex that includes primary somatosensory cortex, and the posterior parietal cortex (PPC) that includes the rest of the parietal lobe. The PPC contains multiple representations of space. In Dijkerman and de Haan’s (see record 2007-13802-022) model, higher spatial representations are separate from PPC functions. This model should be developed further so that the functions of the somatosensory system are integrated with specific functions within the PPC and higher spatial representations. Through this further specification of the model, one can make better predictions regarding functional interactions between somatosensory …

Maintenance Of Visual Stability In The Human Posterior Parietal Cortex, Erik Chang, Tony Ro

Publications and Research

Visual stability refers to our stable visuospatial perceptions despite the unstable visual input caused by saccades. Functional neuroimaging results, studies on patients with posterior parietal cortex (PPC) lesions, and single-unit recordings in the lateral intraparietal sulcus of primates indirectly suggest that the PPC might be a potential locus of visual stability through its involvement with spatial remapping. Here we directly explored the role of the PPC in visual stability by applying transcranial magnetic stimulation (TMS) while participants performed a perisaccadic displacement detection task. We show that TMS over the PPC but not a frontal control site alters sensitivity to displacement …

Application Of Microsatellite Dna Markers To Discriminate Maternal And Genetic Effects On Scalation And Behavior In Multiply-Sired Garter Snake Litters, Gordon Burghardt

Gordon Burghardt

Incomplete knowledge of pedigrees sometimes limits the methods of estimating quantitative genetic parameters (heritability, genetic correlation) in nature and may result in estimates that are inflated by nongenetic sources of variation. North American garter snakes and their allies provide a model system for investigating evolutionary quantitative genetics, but estimates of quantitative genetic parameters in these snakes are mostly based on offspring-dam regression and full-sib analysis, methods that fail to discriminate between maternal genetic, maternal environmental, and direct genetic effects on traits of interest. Using data from the garter snake Thamnophis sirtalis, we demonstrate that microsatellite DNA markers can be used …

Sex Differences In The Onset Of Seasonal Reproductive Quiescence In Hamsters, Annaliese K. Beery, Justin J. Trumbull, Jyeming M. Tsao, Ruth M. Costantini, Irving Zucker

Neuroscience: Faculty Publications

Day length is the primary cue used by many mammals to restrict reproduction to favourable spring and summer months, but it is unknown for any mammal whether the seasonal loss of fertility begins at the same time and occurs at the same rate in females and males; nor it established whether the termination of mating behaviour in males and females coincides with the loss of fertility. We speculated that females, owing to their greater energetic investment in reproduction, are the limiting sex in terminating offspring production in short days (SDs). Oestrous cycles and production of young were monitored in Syrian …

Adolescent Nicotine Exposure Produces Less Affective Measures Of Withdrawal Relative To Adult Nicotine Exposure In Male Rats, Laura O'Dell

Laura Elena O'Dell

No abstract provided.

“Nicotine Deprivation Effect” In Rats With Intermittent 23-Hour Access To Intravenous Nicotine Self-Administration, Laura O'Dell

Laura Elena O'Dell

No abstract provided.

Diminished Nicotine Withdrawal In Adolescent Rats: Implications For Vulnerability To Addiction, Laura O'Dell

Laura Elena O'Dell

No abstract provided.

Viral Vector-Induced Amygdala Npy Overexpression Reverses Increased Alcohol Intake Caused By Repeated Deprivations In Wistar Rats, Laura O'Dell

Laura Elena O'Dell

No abstract provided.

Crf–Crf1 System Activation Mediates Withdrawal-Induced Increases In Nicotine Self-Administration In Nicotine-Dependent Rats., Laura O'Dell

Laura Elena O'Dell

No abstract provided.

Cortical Activity Mediating Motor Representations In Stroke Survivors, Matthew Warren Lowder

Dissertations, Theses, and Masters Projects

No abstract provided.

Volitional Control Of Attention And Brain Activation In Dual Task Performance, Sharlene Newman, Timothy Keller, Marcel Just

Marcel Adam Just

No abstract provided.

Inhibitory Control In High Functioning Autism: Decreased Activation And Underconnectivity In Inhibition Networks, Rajesh Kana, Timothy Keller, Nancy Minshew, Marcel Just

Marcel Adam Just

No abstract provided.

Brain Activation During Sentence Comprehension Among Good And Poor Readers, Ann Meyler, Timothy A. Keller, Vladimir L. Cherkassky, Donghoon Lee, Fumiko Hoeft, Susan Whitfield-Gabrieli, John D. E. Gabrieli, Marcel Adam Just

Marcel Adam Just

No abstract provided.

Individual Differences In Sentence Comprehension: A Functional Magnetic Resonance Imaging Investigation Of Syntactic And Lexical Processing Demands, Chantel S. Prat, Timothy A. Keller, Marcel Adam Just

Marcel Adam Just

No abstract provided.

The Organization Of Thinking: What Functional Brain Imaging Reveals About The Neuroarchitecture Of Complex Cognition, Marcel Adam Just, Sashank Varma

Marcel Adam Just

No abstract provided.

Lexical Ambiguity In Sentence Comprehension, Robert A. Mason, Marcel Adam Just

Marcel Adam Just

No abstract provided.

Functional And Anatomical Cortical Underconnectivity In Autism: Evidence From An Fmri Study Of An Executive Function Task And Corpus Callosum Morphometry, Marcel Adam Just, Vladimir L. Cherkassky, Timothy A. Keller, Rajesh K. Kana, Nancy J. Minshew

Marcel Adam Just

No abstract provided.

Prediction Of Children’S Reading Skills Using Behavioral, Functional, And Structural Neuroimaging Measures, Fumiko Hoeft, Takefumi Ueno, Allan L. Reiss, Ann Meyler, Susan Whitfield-Gabrieli, Gary H. Glover, Timothy A. Keller, Nobuhisa Kobayashi, Paul Mazaika, Booil Jo, Marcel Adam Just, John D. E. Gabrieli

Marcel Adam Just

No abstract provided.

Planning To Reach For An Object Changes How The Reacher Perceives It., Peter Vishton, N J. Stephens, L A. Nelson, S E. Morra, Kaitlyn L. Brunick, Jennifer A. Stevens

Peter Vishton

A Developmental Study Of The Structural Integrity Of White Matter In Autism, Timothy A. Keller, Rajesh K. Kana, Marcel Adam Just

Marcel Adam Just

No abstract provided.