Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 65 for “"dlPFC"”.
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The Role of the DLPFC in Bilingual and Monolingual Switching: Evidence from MVPA and tDCS
… of control). The dorsolateral prefrontal cortex (DLPFC) is one candidate brain region involved in these two types of control. The current studies had two aims. The first was to determine whether bilingual language control and non-linguistic control relate similarly to the DLPFC, and the second was …
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Transcranial Direct Current Stimulation Studies Investigating the Role of the DLPFC in Memory and Metamemory
… over the left dorsolateral prefrontal cortex (DLPFC). Over three experiments, the current dissertation sought to replicate and extend this work by: 1) testing the effects of HD-tDCS over the DLPFC in memory and metamemory monitoring for an episodic memory task, 2) testing of the effects of …
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A non-human primate model of dorsolateral prefrontal cortex dysfunction in schizophrenia
… principally the dorsolateral prefrontal cortex (dlPFC). One of these changes in schizophrenia is a loss of perineuronal nets (PNNs), extracellular matrix structures that serve to protect and support the function of neurons, within the dlPFC (Mauney et al., 2013). Our aim was to use a marmoset …
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Vergleichende MR-volumetrische Untersuchung des dorsolateralen präfrontalen Kortex bei Schizophrenie, Bipolarer Störung, Zwangserkrankung und gesunden Kontrollpersonen
Dem dorsolateralen präfrontalen Kortex (DLPFC) wird, als Teil des Präfrontalkortex, die Lokalisation des Arbeitsgedächtnisses zugeschrieben. Bei schizophrenen Patienten konnten in neuropsychologischen Studien regelmäßig Defizite bei Tests festgestellt werden, die sogenannte exekutive Funktionen …
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Untersuchung der Rolle des dorsolateralen präfrontalen Cortex und des intraparietalen Sulcus in der Proportionsgrößenverarbeitung bei Kindern und Jugendlichen mittels transkranieller Gleichstromstimulation
… in dem der dorsolaterale präfrontale Cortex (DLPFC) und der intraparietale Sulcus (IPS) eine zentrale Rolle einnehmen (Arsalidou et al., 2018). Einen vielversprechenden Ansatz zur nicht-invasiven Modulation der neuronalen Aktivität in diesen Bereichen bietet die transkranielle …
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Wandering minds, restless brains and mindful thinking : a network-based perspective
… (MPFC) and dorsolateral prefrontal cortex (DLPFC). The DLPFC is a major component of the executive control network that increased in activation during tasks involving working memory and mental control. Young adults exhibit greater working memory capacity (how much information could be …
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Emotion, Depression, and Asymmetric Brain Function
… within dorsolateral prefrontal cortex (DLPFC). While collecting fMRI data, eleven depressed and eighteen control participants identified the color in which pleasant, neutral, and unpleasant words were printed. Both groups showed a rightward lateralization for unpleasant words within …
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Inhibition of Gamma Oscillations as a Neurophysiological Endophenotype of Schizophrenia
… in the dorsolateral prefrontal cortex (DLPFC). Two findings have been shown in the DLPFC: deficits in GABAergic inhibitiory neurotransmission and abnormal inhibition of cortical oscillations. Thus, we aimed to assess frontal inhibition as a potential endophenotype of SCZ. Objectives The …
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An fMRI and TMS investigation of response, semantic, and task conflict in the Stroop task.
… cortex (ACC) and dorsolateral prefrontal cortex (DLPFC) are two regions thought to be central to the circuitry of attentional control, however the precise role that each plays is still widely debated. The present thesis attempts to elucidate the function of these regions in two experiments …
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Neural Mechanisms Involved in Emotion /Attention Interactions
… remain unclear. Dorsolateral prefrontal cortex (DLPFC), amygdala, dorsal (dACC), and rostral (rACC) anterior cingulate cortex (ACC) have been shown to play a critical role in the interaction of emotion and attention processes. The present project proposes a model of brain connectivity that …
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An fMRI Analysis of Dorsolateral Prefrontal Cortex's Involvement in Attentional Control
The present work also addressed the proposal that DLPFC and anterior cingulated cortex (ACC) play complementary roles in control. Through an analysis of practice-related effects, the present work provided support for the notion that DLPFC is involved in implementing control while ACC is involved in …
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Domain-general control mechanisms underlying stopping of thought and action
… c) the right dorsolateral prefrontal cortex(DLPFC) and the right ventrolateral prefrontal cortex(VLPFC), dynamically inhibit different target regions depending on whether memory control or motor control is required d) regions involved in memory and emotion are inhibited in parallel by …
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A comparative analysis of musical ability and performance on mathematical exams determined by brain activity and scoring
… right and left dorsolateral prefrontal cortex (DLPFC), ventrolateral prefrontal cortex (VLPFC), orbitofrontal cortex (OFC), and inferior fronto-lateral cortex (IFLC) for each task. RESULTS: Of the eight enrolled in the study, four participants were determined to be musicians and four determined …
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Substrates of social functioning in individuals with VCFS
… cortex (OFC), dorsolateral prefrontal cortex (DLPFC), insula, superior temorpal sulcus (STS), and anterior cingulate cortex (ACC) volumes relative to controls. In addition, scores on the Child Behavior Checklist (CBCL), a measure assessing problematic behaviors and social competency, would be …
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The Role of the Basal Ganglia in Memory and Motor Inhibition
… with other putative supramodal regions (e.g., DLPFC) to achieve memory and motor inhibition during prevention and cancellation. Through dynamic causal modelling (DCM), we found that both DLPFC and basal ganglia play effective roles to achieve inhibition in the task-specific regions (hippocampus …
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The Impact of Threat on Behavioral and Neural Markers of Learning in Anxiety
… learning, the dorsolateral prefrontal cortex (dlPFC) has been suggested to play a role in temporally integrating experienced outcomes, as well as in coordinating an overall choice action plan, both of which can be described computationally by learning rate and exploration, respectively. …
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Identifying the Neural Correlates of Motor Sequence Learning and Movement Automaticity
… in the left dorsolateral prefrontal cortex (DLPFC) following achievement of movement automaticity. The fNIRS findings were unable to detect a similar decrease in the left DLPFC. The second experiment (Chapter 3) further investigated the cerebral oxygenation changes in the PFC following motor …
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Cortical Representation of Learning Social Interactions In Freely Moving Non-Human Primates
… and prefrontal (dorsolateral prefrontal cortex; dlPFC) brain regions simultaneously, I examined how visual representations relevant for social interactions are communicated from sensory to executive areas that encode reward and decision making.</p> <p>During learning, animals improve coordination …
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The acute effects of transcranial direct current stimulation on the performance of velocity based squat training
… areas-the dorsolateral prefrontal cortex (DLPFC) and the primary motor cortex (M1)-on performance metrics during speed-based training. Specifically, we examined the impact on the number of repetitions completed, movement speed, and perception of effort during squat exercise. Fifteen healthy …
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Effect that the t(1;11) translocation and mental disorders have on glutamate and NAA levels in the prefrontal lobe, as measured by MRS
… voxels: right dorsolateral prefrontal cortex (DLPFC), left DLPFC and the anterior cingulate cortex (ACC). This thesis reports that members of a family that carry a unique t(1;11)(q42.2;q14) translocation that affects DISC1 have a substantially raised risk of developing a range of mental …
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