6,285 research outputs found
Benjamin G. Harris CdV (from House Representatives, 38th Congress Album)
No full textThe photograph features a portrait of Benjamin G. Harris (United States Representatives from Maryland). On its verso, it has a Mathew Brady backmark. The CdV is included in an album containing CdVs of Lincoln\u27s cabinet members as well as senators and representatives from the 38th Congress.https://scholarsjunction.msstate.edu/fvw-cdv/1145/thumbnail.jp
Marriage record of Floyd, Mathew and Tanner, Maggie
No full textMarriage license for Mathew Floyd and Maggie Tanner. H.C. Harris was the officiant
The topography of tactile learning in humans
No full textThe spatial distribution of learned information within a sensory system can shed light on the brain mechanisms of sensory-perceptual learning. It has been argued that tactile memories are stored within a somatotopic framework in monkeys and rats but within a widely distributed network in humans. We have performed experiments to reexamine the spread of tactile learning across the fingertips. In all experiments, subjects were trained to use one fingertip to discriminate between two stimuli. Experiment 1 required identification of vibration frequency, experiment 2 punctate pressure, and experiment 3 surface roughness. After learning to identify the stimuli reliably, subjects were tested with the trained fingertip, its first and second neighbors on the same hand, and the three corresponding fingertips on the opposite hand. As expected, for all stimulus types, subjects showed retention of learning with the trained fingertip. However, the transfer beyond the trained fingertip varied according to the stimulus type. For vibration, learning did not transfer to other fingertips. For both pressure and roughness stimuli, there was limited transfer, dictated by topographic distance; subjects performed well with the first neighbor of the trained finger and with the finger symmetrically opposite the trained one. These results indicate that tactile learning is organized within a somatotopic framework, reconciling the findings in humans with those in other species. The differential distribution of tactile memory according to stimulus type suggests that the information is stored in stimulus-specific somatosensory cortical fields, each characterized by a unique receptive field organization, feature selectivity, and callosal connectivity
Performance of a micro-engineered ultrasonic particle manipulator
No full textAn ultrasonic microfluidic particle manipulator has been modeled and its experimentally measured separation performance has been compared with the modeled results for 1 µm latex particles, and yeast particles in water
Author-Agent Conversation
No full textAuthor-agent conversation, April 21st, 2023
Langsam 646, Elliston Poetry Room
Host: Chris Bachelder
Author: Allegra Hyde
Agent: Erin Harris
1.) Welcome (Bachelder)
2.) Introduction of Allegra Hyde (Bachelder)
3.) Introduction of Erin Harris (Bachelder)
4.) Writer and agent’s paths and their intersection (Hyde, Harris)
5.) Writer and agent working relationship (Hyde, Harris)
6.) Publishing short stories versus novels (Hyde, Harris)
7.) Query letter and timing to seek representation (Hyde, Harris)
8.) Audience Q&A (Hyde, Harris)
9.) Where the market is now (Hyde, Harris)
10.) Closing (Bachelder
Ipsilateral and contraletral transfer of tactile learning
No full textWe examined the spatial organization of perceptual learning in a cortex- dependent task. Rats learned a tactile task using four whiskers on one side of the snout, all others being clipped. These trained whiskers were then clipped and prosthetic whiskers were attached. Subsequent performance was found to be determined by the location of the prosthetic whiskers. There was partial transfer of learning to neighbouring whisker positions. In addition, there was partial transfer of learning to whisker positions on the other side of the snout, but only if the prosthetic whiskers were symmetrically opposite the trained whiskers. These findings suggest that neural changes underlying perceptual learning are distributed according to the topographic organization of the sensory cortical map. (C) 2000 Lippincott Williams and Wilkins
Distribution of tactile learning and its neural basis
No full textThe brain's sensory processing systems are modified during perceptual learning. To learn more about the spatial organization of learning-related modifications, we trained rats to utilize the sensory signal from a single intact whisker to carry out a behavioural task. Once a rat had mastered the task, we clipped its 'trained' whisker and attached a 'prosthetic' one to a different whisker stub. We then tested the rat to determine how quickly it could relearn the task by using the new whisker. We observed that rats were immediately able to use the prosthetic whisker if it were attached to the stub of the trained whisker but not if it were attached to a different stub. Indeed, the greater the distance between the trained and prosthetic whisker, the more trials were needed to relearn the task. We hypothesized that this 'transfer' of learning between whiskers might depend on how much the representations of individual whiskers overlap in primary somatosensory cortex. Testing this hypothesis by using 100-electrode cortical recordings, we found that the overlap between the cortical response patterns of two whiskers accounted well for the transfer of learning between them: The correlation between the electrophysiological and behavioral data was very high (r = 0.98). These findings suggest that a topographically distributed memory trace for sensory-perceptual learning may reside in primary sensory cortex
A Conversation with Jessica B. Harris
No full textA conversation with culinary historian and award-winning author Jessica B. Harris, moderated by Gabrielle Fulton Ponder
Biographical essay of Grant Harris
No full textA short biographical essay of Grant Harris, owner of Cowtown, the oldest weekly rodeo in America, located in New Jersey. This essay was written as a part of the You're U.S. project (http://youreus.com/). Created by Emile Klein, You’re U.S. is a unique ethnographic project using arts and craftsmanship to display the distinctive character of people across America. Its goal is to create an engaging and accessible public archive of American people and their histories, an archive that provides diverse opinions and honest representations of those documented.The New York Foundation for the Arts acts as the project's fiscal sponsor.Dirk Johnson, the biographer, is a nationally prominent author and journalist known for his award-winning work as Bureau Chief for The New York Times and Newsweek magazine. He is the author of Biting the Dust and Meth: America's Home Cooked Menace
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