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Social and Behavioral Sciences Commons™
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Full-Text Articles in Social and Behavioral Sciences
Case Study: Effects Of Ultrasonic Vocalizations On Rat Behavior And Place Cell Remapping In The Hippocampus, Qingli Hu
Honors Scholar Theses
Spatial information is known to be encoded in the hippocampus, and small changes in the environment can alter the way that it is represented by our hippocampal place cells in a process called remapping. Hearing is an important sense that can be used to orient ourselves and react to the environment accordingly. In this case study, a rat model is used to test the effects of emotional auditory stimuli, behaviorally significant ultrasonic vocalizations (USVs) (50 kHz, emitted during play; 22 kHz, emitted during danger), on rat behavior on a linear track and place cell remapping in the hippocampus. Behaviorally, it …
Remapping Of Place Cells In The Dorsal And Ventral Hippocampus In Response To Environmental Change, Aditi Anam
Remapping Of Place Cells In The Dorsal And Ventral Hippocampus In Response To Environmental Change, Aditi Anam
Honors Scholar Theses
The hippocampus is an important brain structure involved in memory and navigation of both rats and humans. Neurons in the hippocampus can be “spatially” tuned, meaning they fire in specific physical locations. These spatially tuned cells are referred to as place cells. Collectively, they are thought to provide a map-like representation of the environment around us. If the environment is changed, some place cells can adjust by “remapping”, or altering their firing patterns. There are multiple sub-regions within the hippocampus. During experiments, cells were recorded simultaneously from the dorsal and ventral hippocampus of rats running on a track for food …
Spike Field Coherence (Sfc) For Ripples In Rat Hippocampus, Pranav Singla
Spike Field Coherence (Sfc) For Ripples In Rat Hippocampus, Pranav Singla
Honors Scholar Theses
The aim of this project was to determine coherence between two types of neural recordings which can be obtained from the rat hippocampus: spikes and local field potentials. Extracellular recording makes it possible to determine spiking activity from individual neurons in the vicinity of the recording electrode. Local field potential recording gives a combined activity of many neurons (thousands) at once to determine an overall picture of the coordination of the cells in real time. Here we examine the relationship between these two signals, focusing on place cells which spike at their maximal rate only at certain positions in physical …