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HIPPOCAMPAL THETA-TRIGGERED CONDITIONING: ENHANCED RESPONSES IN HIPPOCAMPUS AND PREFRONTAL CORTEX

Darling, Ryan Daniel
http://rave.ohiolink.edu/etdc/view?acc_num=miami1130446123

Abstract Details

2005, Master of Arts, Miami University, Psychology.
This project manipulated the administration of nictitating membrane conditioning trials as a function of discrete hippocampal states. A brain-computer interface triggered trial presentation during the explicit presence (T+) or absence (T-) of 3-7 Hz theta. Theta-triggering has proven to be an effective manipulation to facilitate behavioral learning and to accelerate hippocampal plasticity early in training. Hippocampal evoked potentials were time-locked to both conditioned and unconditioned stimuli. These responses reset on-going theta in the T+ group or elicited coherent post-stimulus theta in the T- group. Simultaneous recordings from two areas in prefrontal cortex revealed hippocampal state-modulated excitatory responses. These findings are the first attempt to evaluate the effect of hippocampal state on other forebrain structures and support theta as an important regulator of both hippocampal and prefrontal involvement during this task. These data are consistent with a hypothesized role of theta to coordinate distributed networks with increasing complexity of classical conditioning.
Stephen Berry (Advisor)
54 p.
Psychology, Psychobiology
Classical Conditioning; Hippocampus; Theta; Prefrontal Cortex

Recommended Citations

Citations

  • Darling, R. D. (2005). HIPPOCAMPAL THETA-TRIGGERED CONDITIONING: ENHANCED RESPONSES IN HIPPOCAMPUS AND PREFRONTAL CORTEX [Master's thesis, Miami University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=miami1130446123

    APA Style (7th edition)

  • Darling, Ryan. HIPPOCAMPAL THETA-TRIGGERED CONDITIONING: ENHANCED RESPONSES IN HIPPOCAMPUS AND PREFRONTAL CORTEX. 2005. Miami University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=miami1130446123.

    MLA Style (8th edition)

  • Darling, Ryan. "HIPPOCAMPAL THETA-TRIGGERED CONDITIONING: ENHANCED RESPONSES IN HIPPOCAMPUS AND PREFRONTAL CORTEX." Master's thesis, Miami University, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=miami1130446123

    Chicago Manual of Style (17th edition)

miami1130446123
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© 2005, all rights reserved.
This open access ETD is published by Miami University and OhioLINK.