Siobhán Hoscheidt’s Homepage

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Siobhán M. Hoscheidt

 

 

B.A.

CNS Doctoral Program

Cognition & Neuroimaging Lab / Anxiety Research Lab

Psychology 217J

University of Arizona
Tucson, AZ 85721-0068

 

Email: smhosche@email.arizona.edu

 

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Publications:

 

Payne, J.D., Jackson, E.D., Ryan, L., Hoscheidt, S., Jacobs, W.J. & Nadel, L. (2006). The impact of stress on neutral and

emotional aspects of episodic memory.  Memory, 14(1), 1-16. (PubMed Abstract)

 

 

            Conference Presentations:

           

Hoscheidt, S., Payne, J., Patterson, D., Ryan, L., Nadel, L. (2006, April). Retrieval of Episodic and Semantic Spatial

and Nonspatial Information: An fMRI Study. Poster presented at the annual meeting of the Cognitive Neuroscience Society,

San Francisco, CA.

 

Hoscheidt, S., Payne, J., Patterson, D., Nadel, L., Ryan, L. (2005, November). Retrieval of Spatial Information in Semantic

and Episodic Memory: An fMRI study. Poster presented at the annual meeting of the Society for Neuroscience, Washington,

DC.

 

Hoscheidt, S., Payne, J., Patterson, D., Nadel, L., Ryan, L. (2005, June). Varying Spatial Information in Semantic and

Episodic Memory Retrieval: An fMRI Study. Poster presented at the 11th annual meeting for the Organization for Human

Brain Mapping, Toronto, ON.

 

Payne, J., Hoscheidt, S., Jackson, E., Jacobs, W.J., & Nadel, L. (2004, October). The Effects of Psychosocial Stress

on Neutral and Emotional Episodic Memory. Poster presented at the 34th annual meeting of the Society for Neuroscience,

San Diego, CA

 

Payne, J., Jackson, E., Hoscheidt, S., Jacobs, W.J., & Nadel, L. (2004, April). Stress Effects on Memory for Emotional

and Neutral Information. Poster presented at the annual meeting of the Cognitive Neuroscience Society, San Francisco, CA.

 

Payne, J., Hoscheidt, S., Jackson, E., Jacobs, W.J., & Nadel, L. (2003, November). Stressing Memory: The Fate of

Neutral versus Emotional Information in an Episodic Memory Task. Poster presented at the annual meeting of the Society for

Neuroscience, New Orleans, LA.

 

Payne, J., Jacobs, W.J., Hardt, O., Hoscheidt, S., & Nadel, L. (2003, March). The Role of Stress: Binding in Episodic

and Emotional Memory. Poster presented at the 10th annual meeting of the Cognitive Neuroscience Society, New York City, NY.

 

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Research Interests:

 

In general, I am interested in human memory function and spatial cognition. Additionally, I am interested in the behavioral effects of stress hormones on these cognitive processes, as well as the physiological effects of stress hormones on the various brain regions that underlie these functions. My research focuses on the hippocampus, a region of the brain that has been shown to be critical for episodic memory and spatial navigation. Other regions of interest are the amygdala, an area of the brain shown to be important for processing of emotional information, and the parahippocampal gyrus, shown to be involved in spatial memory. My research endeavors currently extend between two laboratories at the University of Arizona, the Cognition and Neuroimaging Laboratory (CNL) and the Anxiety Research Group (ARG).

 

In the Cognition and Neuroimaging Lab, I work in collaboration with advisors, Dr. Lynn Nadel and Dr. Lee Ryan, to examine hippocampal activation in humans, measured by functional magnetic resonance imaging (fMRI), during retrieval of various types of information. My research in this lab is particularly focused on examining hippocampal functioning during retrieval of episodic memory under normal environmental and physiological conditions. Currently, we are investigating the functional role of the hippocampus, parahippocampal gyrus, and frontal lobes during retrieval of spatial and nonspatial information, from episodic and semantic memory.

 

In the Anxiety Research Group, I work in collaboration with faculty member Dr. Jake Jacobs, fellow graduate student Eric Jackson, and post-doc Jessica Payne (currently at Harvard University), to examine the effects of stress and stress hormones on memory for emotional and neutral information acquired during an episode. Thus far, our research has shown that stress effects memory for emotional and neutral information differentially, having no effect, or an enhancement effect, on memory for emotional information and a deleterious effect on memory for neutral information. Currently, we are examining if the effects of stress and stress hormones on memory performance varies depending on the stage of cognitive processing during which stress induction occurs.

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Last Revised: Jan, 2007

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