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Full-Text Articles in Psychology

Proactive And Reactive Cognitive Control Under Threat Of Unpredictable Shock: A Combined Eye-Tracking And Eeg Study Using Multilevel Modeling, Salahadin Lotfi Dec 2020

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 …


Are Individual Differences In Media Multitasking Habits Associated With Changes In Brain Activation: An Erp Investigation Of Multitasking And Cognitive Control, Morgan Middlebrooks Dec 2020

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 …


Dual Mechanisms Of Cognitive Control: An Eye Tracking Study, Kyle Mobly Dec 2020

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 …


The Impact Of Task Load On Neural Entrainment To Attended Speech: A Dual-Task Magnetoencephalography (Meg) Paradigm, Michelle Tamar Kassel Aug 2020

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 …