Psychology Commons^™

Proactive And Reactive Cognitive Control Under Threat Of Unpredictable Shock: A Combined Eye-Tracking And Eeg Study Using Multilevel Modeling, Salahadin Lotfi

Theses and Dissertations

We are constantly bombarded by environmental distractors in daily life which interfere with internal, ongoing goals, thus cognitive control processes need to be in place to adapt to maintain these goals in light of the environmental demands. These cognitive processes (generally referred to cognitive control) are thought to be adjusted reactively or proactively to deal with distractors. There is little evidence on how state anxiety dynamically interacts with these two modes of cognitive control. Taking advantage of a multimodal methodology, through two experiments, we replicated existing findings of reactive and proactive control processes via utilizing a Flanker task in a …

Dual Mechanisms Of Cognitive Control: An Eye Tracking Study, Kyle Mobly

Electronic Theses, Projects, and Dissertations

The purpose of the present study was to attempt to provide an ocular signature for the dual mechanisms of cognitive control (proactivity and reactivity) by utilizing an eye tracker to record gaze patterns while participants were administered a modified version of the AX-CPT 40. Additionally, we sought to clarify whether context updating or maintenance was responsible for the higher Total Visit Duration (TVD) on the cue location during the ISI that was found in previous studies by providing both a short (1.5 seconds) and long (3 seconds) ISI length. This allowed us to disentangle context updating from maintenance by removing …

Are Individual Differences In Media Multitasking Habits Associated With Changes In Brain Activation: An Erp Investigation Of Multitasking And Cognitive Control, Morgan Middlebrooks

Graduate Theses and Dissertations

As the number of mobile phone users grows, understanding the impact of multiple streams of media on media multitasking and related neural correlates is especially pertinent. This research aims to understand the association between media multitasking tendencies on the neural correlates underlying cognitive control using event-related potentials (ERPs). Specifically, we were interested in the N2 and P3, ERPs that measure neural activation underlying aspects of cognitive control. Based on the literature, we predicted that participants who have high media multitasking scores would show more negative N2 activation and more positive P3 activation than their low media multitasking counterparts during an …

The Impact Of Task Load On Neural Entrainment To Attended Speech: A Dual-Task Magnetoencephalography (Meg) Paradigm, Michelle Tamar Kassel

Theses and Dissertations

Speech comprehension in a noisy environment requires active cognitive control mechanisms to select the relevant speech signal while filtering out irrelevant distractions. When processing speech in a multitask scenario, neural resources underlying cognitive control are considerably burdened and interfering information becomes more difficult to ignore. The present study utilized magnetoencephalography (MEG) to investigate the impact of multitasking on selective attention to speech. Twenty healthy adults performed a multitask paradigm with varying levels of both competing auditory distraction and concurrent visual working memory load. While increased visual working memory load was associated with reduced selective attention to speech in both the …

A Transdiagnostic Perspective Of Constructs Underlying Obsessive-Compulsive And Related Disorders: An International Delphi Consensus Study, Leonardo F. Fontenelle, Erin Oldenhof, Maria Eduarda Moreira-De-Oliveira, Jonathan S. Abramowitz, Martin M. Antony, Danielle Cath, Adrian Carter, Darin D. Dougherty, Ygor A. Ferrao, Martijn Figee, Ben J. Harrison, Marcelo Hoexter, Jun Soo Kwon, Anne Küelz, Luisa Lazaro, Christine Lochner, Donatella Marazziti, David Mataix-Cols, Dean Mckay, Euripedes C. Miguel, Sharon Morein-Zamir, Steffen Mortiz, Gerald Nestadt, Kieron O'Connor, Stefano Pallanti, Christine Purdon, Scott Rauch, Peggy Richter, Jean-Yves Rotge, Roseli G. Shavitt, Carles Soriano-Mas, Vladan Starcevic, Dan J. Stein, Gail Steketee, Eric A. Storch, Steven Taylor, Odile A. Van Den Heuvel, David Veale, Douglas W. Woods, Antonio Verdejo-Garcia, Murat Yucel

Psychology Faculty Research and Publications

Background:

The Research Domain Criteria seeks to bridge knowledge from neuroscience with clinical practice by promoting research into valid neurocognitive phenotypes and dimensions, irrespective of symptoms and diagnoses as currently conceptualized. While the Research Domain Criteria offers a vision of future research and practice, its 39 functional constructs need refinement to better target new phenotyping efforts. This study aimed to determine which Research Domain Criteria constructs are most relevant to understanding obsessive-compulsive and related disorders, based on a consensus between experts in the field of obsessive-compulsive and related disorders.

Methods:

Based on a modified Delphi method, 46 experts were recruited …

Effects Of Anodal Tdcs On Neural Correlates Of Cognitive Control In Mild-To-Moderate Traumatic Brain Injury, Nickolas A. Mertens

Psychology ETDs

Traumatic brain injury is a worldwide epidemic and currently there is no successful treatment to combat the cognitive deficits sustained from a mmTBI. The goal of this analysis is to determine if active tDCS paired with cognitive training can aid in an individual’s recovery on one specific consequence of mmTBI: cognitive control. To examine this novel treatment on cognitive control, EEG was recorded, and FM-theta activity collected from electrode FCz was analyzed. Three analyses were run to address the hypotheses of the present study: 1. A cluster analysis; 2. A series of repeated-measures ANOVAs; and 3. A series of multiple …