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Articles 1 - 15 of 15
Full-Text Articles in Cognitive Psychology
The Impact Of Delay On Retrieval Success In The Parietal Memory Network, Nathan Anderson
The Impact Of Delay On Retrieval Success In The Parietal Memory Network, Nathan Anderson
Arts & Sciences Electronic Theses and Dissertations
Recent work has identified a Parietal Memory Network (PMN), which exhibits regular patterns of activation during memory encoding and retrieval. Among these characteristic patterns, this network displays a strong “retrieval success” effect, showing greater activation for correctlyremembered studied items (hits) compared to correctly-rejected novel items (CRs). To date, most relevant studies have used short retention intervals. Here, we ask if the retrieval success effect seen in the PMN would remain consistent over a delay. Twenty participants underwent fMRI while encoding and recognizing scenes. Greater activity for hits than for correctly-rejected lures within PMN regions was observed after a short delay …
Rumination Is Associated With Diminished Performance Monitoring, Ema Tanovic, Greg Hajack, Charles A. Sanislow
Rumination Is Associated With Diminished Performance Monitoring, Ema Tanovic, Greg Hajack, Charles A. Sanislow
Charles A. Sanislow, Ph.D.
An Investigation Of Propranolol As An Agent For The Experimental Manipulation Of Interoception., Jane Evguenia Kouptsova
An Investigation Of Propranolol As An Agent For The Experimental Manipulation Of Interoception., Jane Evguenia Kouptsova
Electronic Thesis and Dissertation Repository
Interoception has recently come under research focus as a potential influence on emotional and epistemic feelings. However, existing means to manipulate it experimentally have conceptual or logistical drawbacks. We investigated whether 20 mg of propranolol is a viable agent for experimentally manipulating interoception. Thirteen participants completed a double-blind, placebo-controlled crossover study, performing two heartbeat perception tasks, control tasks and measures of anxiety and alertness. All measures were obtained at the beginning and end of both sessions. Propranolol significantly decreased heart rate and systolic blood pressure. Heartbeat detection performance numerically decreased under propranolol, although this effect failed to reach statistical significance. …
A Representational-Hierarchical Account: A New Theory Of False Memories, D. Merika Wilson
A Representational-Hierarchical Account: A New Theory Of False Memories, D. Merika Wilson
Masters Theses
Past research has supported a representational-hierarchical theory of memory and perception that extends the ventral visual stream into the medial temporal lobe. In this account, representations are organized in a hierarchical manner, such that structures located further anterior in the brain contain complex representations of whole objects and areas further posterior in the visual cortex contain representations of simple features. When conjunctive representations are compromised, an individual must rely on simple-feature representations to complete mnemonic and perceptual tasks. However, these simple-feature representations are susceptible to feature-level interference, which can cause false recognition of novel objects. The goal of the present …
Using Classification Images To Understand Models Of Lightness Perception, Minjung Kim, Jason M. Gold, Richard F. Murray
Using Classification Images To Understand Models Of Lightness Perception, Minjung Kim, Jason M. Gold, Richard F. Murray
MODVIS Workshop
No abstract provided.
Neural Processes Underlying Auditory Context Effects, Breanne Yerkes
Neural Processes Underlying Auditory Context Effects, Breanne Yerkes
UNLV Theses, Dissertations, Professional Papers, and Capstones
Auditory information within our natural environments is disorganized and often ambiguous, leaving our auditory systems with a complex task: organizing sound into coherent objects. The auditory system uses both current and prior information to assist in completing this task. The influences of previous context on current perception have been referred to as context effects. A contrastive context effect results in a current perception that is opposite of what is expected based on the physical stimulus properties presented during an immediate context. A facilitative context effect results in a current perception that is the same as the perception during the immediate …
Domain-General And Domain-Specific Brain Regions Involved In Statistical-Sequential Learning, Phillip Loan
Domain-General And Domain-Specific Brain Regions Involved In Statistical-Sequential Learning, Phillip Loan
Georgia State Undergraduate Research Conference
No abstract provided.
Neural Circuits For Source Memory And Imagination, Amber C. Grant, Darryl Burnet
Neural Circuits For Source Memory And Imagination, Amber C. Grant, Darryl Burnet
Georgia State Undergraduate Research Conference
No abstract provided.
Transcranial Magnetic Stimulation To Assess Motor System Excitability Fluctuations During Auditory Anticipation And Beat Perception, Johannes G.P Teselink
Transcranial Magnetic Stimulation To Assess Motor System Excitability Fluctuations During Auditory Anticipation And Beat Perception, Johannes G.P Teselink
Undergraduate Honors Theses
Humans tend to spontaneously move to the regular beat of musical rhythm. Beat perception is the tendency to sense and anticipate the regular time positions (beats) that movements synchronize with. The neural motor system plays an important role in beat perception, but the dynamics of excitability in the motor system associated with beat perception have not been characterized. This project investigated motor system excitability fluctuations using transcranial magnetic stimulation and electromyography during perception of beat-based and non-beat-based rhythms. We applied single-pulse TMS over the left primary motor cortex of healthy participants as they listened to three types of rhythms that …
Positive Emotions And Quality Of Life In Dogs, Patrizia Piotti
Positive Emotions And Quality Of Life In Dogs, Patrizia Piotti
Animal Sentience
Positive affect is fundamental to ensuring good animal welfare. Discrete and dimensional theories of emotion have recently been used to explore the relation between cognition and affect and to develop cognitive measures of positive affect. Human quality-of-life assessment focuses on positive affect, which is difficult to measure objectively in dogs. Expanding on Kujala’s (2017) discussion of positive emotions and cognitive measures of affect, I suggest how these are relevant to assessing canine quality of life.
Variations In Crowding, Saccadic Precision, And Spatial Localization Reveal The Shared Topology Of Spatial Vision, John A. Greenwood, Martin Szinte, Bilge Sayim, Patrick Cavanagh
Variations In Crowding, Saccadic Precision, And Spatial Localization Reveal The Shared Topology Of Spatial Vision, John A. Greenwood, Martin Szinte, Bilge Sayim, Patrick Cavanagh
Dartmouth Scholarship
Visual sensitivity varies across the visual field in several characteristic ways. For example, sensitivity declines sharply in peripheral (vs. foveal) vision and is typically worse in the upper (vs. lower) visual field. These variations can affect processes ranging from acuity and crowding (the deleterious effect of clutter on object recognition) to the precision of saccadic eye movements. Here we examine whether these variations can be attributed to a common source within the visual system. We first compared the size of crowding zones with the precision of saccades using an oriented clock target and two adjacent flanker elements. We report that …
Eeg Study Of The Featural And Configural Components Of Face Perception, Heather Rose Stegman
Eeg Study Of The Featural And Configural Components Of Face Perception, Heather Rose Stegman
Summer Research
Prior research using functional magnetic resonance imaging (fMRI) suggests that facial features (i.e. eyes, nose, and mouth) and their configuration (i.e. T-shaped arrangement of features) are processed in different face-specific brain regions. However, precise response time of featural and configural face processing is unknown. Featural processing may occur before configural processing, or configural processing may occur before featural processing; conversely, they may occur simultaneously. Here, using the electroencephalography (EEG), we will examine the face-specific event related potential (ERP), the N170, to analyze temporal differences between featural and configural face processing.
Prosociality And Risk: How Risky Decision-Making In Young Adults Relates To Altruistic Tendencies, Empathic Concern, And Prosocial Peer Affiliation, Sarah J. Beard
UNF Graduate Theses and Dissertations
Adolescence involves an increase in risky decisions, such as reckless driving and illicit substance use, but prosocial characteristics and peer affiliation have yet to be investigated as protective factors. The present study assessed altruistic tendencies, prosocial peer affiliation (PPA), and empathic concern as predictors and moderators of risk-taking, including both self-reported health risks and riskiness in a behavioral task. Young adults from ages 20 to 25 (M = 22.55, SD = 1.38) completed a battery of behavioral tasks (including the Balloon Analogue Risk Task and the Dictator Game) and questionnaires on Amazon MTurk, measuring risk-taking (drunk driving, texting while …
The Relationship Between Sleep, Working Memory, And Decision Making In Young And Old Adult Populations, Melissa G. Merz
The Relationship Between Sleep, Working Memory, And Decision Making In Young And Old Adult Populations, Melissa G. Merz
Honors Undergraduate Theses
Sleep is known to influence basic tasks concerning working memory, reaction time and executive functioning (Silva, Wang, Ronda, Wyatt, & Duffy, 2010; Nebes, Buysse, Halligan, Houck, & Monk, 2009). However, the amount that sleep influences these functions varies from study to study possibly due to differences in age and task design. Aim 1A of this study is to determine if sleep quality affects working memory. Aim 1B of this study is to determine if age affects sleep quality and working memory in comparison of young and old adult populations. Finally, Aim 2 of this study is to determine if there …
An Examination Of Imagined Contexts: The Unreliability Of Context-Dependent Memory Effects In Recall, Caitlin J. I. Tozios
An Examination Of Imagined Contexts: The Unreliability Of Context-Dependent Memory Effects In Recall, Caitlin J. I. Tozios
Theses and Dissertations (Comprehensive)
It is generally accepted that the environmental context present during memory encoding serves as an effective cue for recall if reinstated during retrieval. Participants who perform a free recall test in the same context as that during which they learned a set of words, often remember more words than participants who experience a context mismatch from encoding to retrieval. This is referred to as the context-dependent memory effect and forgetting due to a change in context is referred to as context-dependent forgetting. Recent evidence suggests that contexts need not always be physical but can be mentally generated or imagined and …