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.
Results
Showing 1 to 20 of 22 for “"n-back task"”.
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The Effects of Intermittent Theta Burst Stimulation on Working Memory in Depressed Patients
Background: People with depression struggle with cognitive impairments such as decreased working memory. The brain areas associated with working memory, such as the prefrontal cortex and hippocampus are negatively affected by depression; studies have shown decreased volume, activity, and disturbed …
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Adverse childhood experiences, working memory, and stress
… (ACEs), working memory as assessed by an n-back task, and stress. Working memory task demands were manipulated by varying the cognitive load (1-back/3-back) and time limit (standard-paced/time-restricted), and stress was measured both subjectively via self-report and objectively via heart …
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The Nature of Working Memory in Aphasia
… controls (NBD) completed a parametric WM task with systematic variation of psycholinguistic complexity (high-frequency, low-frequency, or non-nameable stimuli) and WM load (0-, 1-, and 2-back). Data were analyzed with respect to the differential impact of these variables within and across …
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The influence of low physical activity levels versus extreme physical activity levels on brain structure and working memory
Background: Habitual levels of moderate to vigorous levels of physical activity (MVPA) levels are associated with positive health outcomes and improvement in cognitive function. A challenge facing optimal health outcomes is determining optimal levels of physical activity levels; people can engage …
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Emotion Regulation: Is it More Taxing for Adolescents than for Adults?
… performed a cognitively taxing working memory task (the N-Back) before and after a manipulation designed to elicit strong negative feelings (anger or embarrassment). Performance on the N-Back should be impaired by strong emotion (Baumeister et al., 2007; Richards, 2004), and failure to improve …
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The Relationships Among Age, Physical Activity, and Working Memory
… were found for verbal and visuospatial span tasks, as well as for recall reaction time on verbal and visuospatial n-back tasks, and age-related performance decrements were exacerbated in the most difficult task conditions. All participants performed less accurately and took longer to respond …
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Determining the effects of emotion on prospective memory performance
… College students completed three blocks of an n-back task with positive and negative emotionally valenced images in the prospective memory blocks for the Experimental condition and neutral images in the Control condition. Results revealed that although there were no differences between positive …
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The Effect of C-Section Birth on Attention Task Performance and Cortical Grey Matter Integrity
… in reduced performance on visual attention tasks, as well as altered intrinsic functional neural networks, for both infants and adults born via C-section. The present study tested C-section and vaginally born adults on six tasks: a visual search task, the Attention Network Task, the …
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The effect of monolingualism, bilingualism and trilingualism on executive functioning in young and older adults
… field of trilingualism and cognitive control, task complexity, the age of second and third language acquisition, language use, and physical and cognitive activity were also, importantly, assessed, as these are possible influencing factors in test performance. The participants completed several …
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Neural Correlates of Adolescent Mindfulness, Working Memory, and Internalizing Symptoms
… a functional Magnetic Resonance Imaging (fMRI) N-Back task. Hierarchal regressions and correlation analyses were performed. The blood oxygen level dependent (BOLD) signal was contrasted between 2-back versus 0-back conditions and a small volume correction was computed in the dorsolateral and …
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Pattern Separation in the Ventral Visual Stream
… the context of classic recognition-memory tasks. To investigate pattern separation in the VVS, we combined fMRI in humans (N=23) with multivariate pattern analyses techniques and compared representations of visual objects in a mid-level visual region, Lateral Occipital (LO) region, with …
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Olfactory short term memory: understanding perceptual representations of odours and the role of encoding strategies in working memory.
… working memory was then examined using the n-back task with verbalisable and hard-to-verbalise odours. A working memory advantage for verbalisable odours was replicated (Jönsson et al., 2011), but this advantage was unrelated to the adoption of a verbal rehearsal strategy. Instead, effects …
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The effects of low-to-moderate intensity aerobic exercise on cognition and affect
… attentional inhibition (i.e.,, Eriksen Flanker Task) and a working memory task (i.e., N-Back task), and an online questionnaire gathering demographic information, exercise history, and individual difference measures (i.e., Trait Anxiety Inventory-Y2, Disposition Resilience Scale-15). On Day 2, …
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Effects of participation in a simulated live-fire maneuver on cognitive performance of firefighters: An examination of individual differences
… tests of cognitive inhibition (modified flanker task), attention (0-back task), and working memory (n-back task: 1-back, 2-back) were completed pre and post firefighting. Throughout the evening, HR was continuously recorded and affective and perceptual states of each firefighter (thermal …
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Music on the Brain: Examining the Relationship Between Music Performance Anxiety, Mindfulness, and Brain Activity
… 1, a social-evaluative anxiety-provoking fMRI task was used to examine the neural activity and subjective anxiety levels associated with mindfulness training in musicians with MPA. This study found that brief mindfulness training led to increased activity in areas related to attention and …
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Effects of Emotional Content on Working Memory Updating: Proactive Interference and Resolution
… memory updating paradigm. Specifically, an n-back task with lure trials was employed to systematically introduce interference effects. Low arousing neutral images and highly arousing negative images were used to study interference resolution under two emotional conditions. The effects of …
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Assessment of Mental Workload by EEG+fNIRS
… healthy subjects performing the letter n-back task, a standard experimental paradigm related to working memory. For simultaneous EEG+fNIRS data acquisition, we introduced a state of the art whole-head EEG+fNIRS set up in a single headpiece with 19 EEG and 19 fNIRS channels. We quantified …
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Wh-Question Processing in Children with Cochlear Implants
… also compared to results from a battery of WM tasks including an n-back task and updating/span task. Results demonstrated no significant difference in eye gaze fixations to the target picture at the gap between CI and NH children; however, children with CIs were less likely to fixate towards …
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N-back Performance with Trauma-Relevant Visual Distractors: Associations with Posttraumatic Stress Symptomatology
… anxiety may lead to perceptual engagement with task-irrelevant threat, which would require goal-directed attentional resources to inhibit and shift back towards primary task goals. In this way, task effectiveness can be maintained at the cost of inefficiently slowed responding. A cross-sectional …
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Intrinsic functional brain connectivity in South African methamphetamine users undergoing inpatient treatment, with or without additional cognitive training
Background: Methamphetamine (MA) abuse is a global crisis that exacerbates sociopolitico-economic burdens in South Africa. MA use is associated with a myriad of neural abnormalities of structure and function, with associated neurocognitive deficits, particularly executive function (EF). Working …
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