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Psychology

Memory

Theses and Dissertations

2019

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The Neural Correlates And Temporal Dynamics Of Cued Fear Generalization, Kelsey Nicole Wilson Aug 2019

The Neural Correlates And Temporal Dynamics Of Cued Fear Generalization, Kelsey Nicole Wilson

Theses and Dissertations

Fear generalization, the generalization of fear to innocuous stimuli, is a characteristic component of pathological anxiety. For example, after returning from war, a person might begin to experience fear in response to the sound of fireworks, a stimulus typically regarded as safe. When excessive, “overgeneralization” serves as a core feature of fear and anxiety-related disorders, such as PTSD. The present collection of studies sought to investigate the neural correlates and temporal dynamics of fear generalization in humans.

The first study sought to investigate the causal role of the ventromedial prefrontal cortex (vmPFC) and hippocampus in the generalization of fear. Contrary ...


Familiarization Through Ambient Images Alone, Nia Imani Gipson May 2019

Familiarization Through Ambient Images Alone, Nia Imani Gipson

Theses and Dissertations

The term “ambient images” has begun to show up in much of the current literature on facial recognition. Ambient images refer to naturally occurring views of a face that captures the idiosyncratic ways in which a target face may vary (Ritchie & Burton, 2017). Much of the literature on ambient images have concluded that exposing people to ambient images of a target face can lead to improved facial recognition for that target face. Some studies have even suggested that familiarity is the result of increased exposure to ambient images of a target face (Burton, Kramer, Ritchie, & Jenkins, 2016). The current study ...