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Modulation of Emotional Processing b...

Lapate, Regina C.

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Modulation of Emotional Processing by Emotional-Stimulus Awareness: Probing the Behavioral Fate of Emotional Responses and Underlying Neural Mechanisms.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Modulation of Emotional Processing by Emotional-Stimulus Awareness: Probing the Behavioral Fate of Emotional Responses and Underlying Neural Mechanisms./
作者:	Lapate, Regina C.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2015,
面頁冊數:	208 p.
附註:	Source: Dissertation Abstracts International, Volume: 78-03(E), Section: B.
Contained By:	Dissertation Abstracts International78-03B(E).
標題:	Personality psychology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10187333
ISBN:	9781369330854

Modulation of Emotional Processing by Emotional-Stimulus Awareness: Probing the Behavioral Fate of Emotional Responses and Underlying Neural Mechanisms.
Lapate, Regina C.

Modulation of Emotional Processing by Emotional-Stimulus Awareness: Probing the Behavioral Fate of Emotional Responses and Underlying Neural Mechanisms. - Ann Arbor : ProQuest Dissertations & Theses, 2015 - 208 p.

Source: Dissertation Abstracts International, Volume: 78-03(E), Section: B.

Thesis (Ph.D.)--The University of Wisconsin - Madison, 2015.

What role does awareness play in the unfolding of emotional responses? Because emotional information is often processed without awareness while still activating peripheral and central nervous systems, understanding whether there are qualitative differences between aware and unaware processing is of interest not only from a basic science perspective, but also from a clinical one. For example, in the clinic, unaware emotional processing is typically regarded as maladaptive, and increasing awareness of negative emotional triggers is a prominent aspect of common therapeutic approaches including cognitive-behavioral therapy, psychodynamic models, and mindfulness-based stress reduction interventions. Despite this pervasive assumption, the modulation of emotional responding by awareness has seldom been studied.

ISBN: 9781369330854Subjects--Topical Terms:

2144789
Personality psychology.

Modulation of Emotional Processing by Emotional-Stimulus Awareness: Probing the Behavioral Fate of Emotional Responses and Underlying Neural Mechanisms.
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520 $a What role does awareness play in the unfolding of emotional responses? Because emotional information is often processed without awareness while still activating peripheral and central nervous systems, understanding whether there are qualitative differences between aware and unaware processing is of interest not only from a basic science perspective, but also from a clinical one. For example, in the clinic, unaware emotional processing is typically regarded as maladaptive, and increasing awareness of negative emotional triggers is a prominent aspect of common therapeutic approaches including cognitive-behavioral therapy, psychodynamic models, and mindfulness-based stress reduction interventions. Despite this pervasive assumption, the modulation of emotional responding by awareness has seldom been studied.
520 $a An ecologically valid paradigm that has captured differences between aware and unaware emotional processing is the emotion misattribution task. In this task, preferences for novel neutral objects can be biased according to the valence of a previously presented emotional stimulus. The present research capitalized on this paradigm to examine how awareness modulates emotional processing in 3 studies that adopted distinct methodologies---including peripheral-physiological recordings, functional neuroimaging, diffusion tensor imaging, and continuous theta-burst transcranial magnetic stimulation (tbTMS)---all grounded in behavioral measures and anchored in individual differences. In Study 1, we found that unaware behavior in the emotion misattribution paradigm is consistent with the affect-as-information theory, where awareness breaks otherwise automatic associations between physiological reactivity to emotional stimuli and subsequent evaluative emotional responses. In Study 2, a neuroimaging investigation, we found that reduction of emotion misattribution following aware emotional processing was associated with functional and structural connectivity between the amygdala and regions of the prefrontal cortex (PFC), including lateral PFC (LPFC). Finally, in Study 3, by altering LPFC function with inhibitory tbTMS, we found that this region plays a causal role in preventing emotion misattribution, as well as a modest role in promoting metacognitive awareness of complex and naturalistic emotional stimuli. Collectively, this body of work underscores an important emotion-regulatory role for conscious awareness that is in part subserved by LPFC function, while also highlighting that the impact of awareness on emotional processing may differ depending on trait-like variability in amygdala-prefrontal white matter microstructure.
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