Psychology Commons^™

Neural Correlates Of Individuation And Subordinate-Level Categorization Of Other-Race Faces In Infancy, Kelly Roth

Doctoral Dissertations

Perceptual narrowing is a domain-general process in which infants move from a broad sensitivity to a wide range of stimuli to developing expertise within often experienced native stimuli (Maurer & Werker, 2014). One outcome of this is the own-race bias, characterized by an increasing difficulty in discriminating other-race faces with age and experience for those raised in a racially homogenous environment (Anzures, Quinn, Pascalis, Slater, Tanaka, & Lee, 2013). Recent theorists have proposed that this is due to a categorization-individuation process, wherein infants begin to categorize non-native stimuli, such as other-species’ faces, but individuate native stimuli, such as often-experienced human …

The Effects Of Aging On Attention In Associative Learning, Katie Wheeler

Masters Theses & Specialist Projects

In this study we investigated how aging affects attention to predictive and uncertain cues during associative learning. According to Mackintosh’s theory of predictiveness (1975), attention will be allocated to cues that most reliably predict an outcome. An opposing theory of uncertainty from Pearce and Hall (1980) suggest attention will be allocated to cues whose outcomes are uncertain. Although these theories are contradictory, both are well supported in the associative learning literature. There is evidence that young and older adults give more attention to cues that are predictive compared to nonpredictive cues (Mutter et al., 2019), and that young adults respond …

Attention Capture By Episodic Long-Term Memories: Evidence From Eye Movement Data, Allison Eleanor Nickel

Theses and Dissertations

Successfully navigating the world on a moment-to-moment basis requires the interaction of multiple cognitive processes. Therefore, studies that examine when and how these fundamental processes interact can provide important insights into how we behave. Many studies indicate that long-term memory can facilitate search for a target object (e.g., contextual cueing), however, the ways in which long-term memory might capture attention and disrupt goal-directed behavior have not been well studied. In five experiments, questions about whether encoded objects might capture attention, even when they are task-irrelevant, were addressed. Each experiment began with an encoding phase, where participants were instructed to commit …

The Effects Of Interruption Relevance And Complexity On Primary Task Resumption And Mental Demand, Brandon Allan Fluegel

Psychology Theses & Dissertations

In the present study, undergraduate students viewed patient charts and entered numerical values from these charts into a medical record database. They were unexpectedly interrupted by secondary tasks that differed in relevance and complexity. The secondary tasks varied by whether they facilitated or inhibited (i.e., relevant or irrelevant) rehearsal of the suspended task and whether they placed a demand on working memory (i.e., high complexity or low complexity). The primary measures of interest were the duration of time needed to resume the primary task and perceived mental demand. The Memory for Goals model (Altmann & Trafton, 2002) predicts that task …

The Process Of Therapeutic Change In The Attention Training Technique, Benjamin J. Laman-Maharg

Graduate Research Theses & Dissertations

Background: An unacceptably large proportion of individuals remain symptomatic after receiving first-line interventions. The attention training technique (ATT) is a potentially effective treatment augmentation and standalone treatment that may help improve the treatment of psychological disorders. The machanisms of therapuetic change of ATT remain understudied. This study is a randomized controlled trial of ATT compared to progressive muscle relaxation (PMR) that examined mindfulness and attentional control as potential mechisms of therapeutic change.

Method: A convenience sample of 64 participants (Mage = 20.13, SD = 3.65; 42.2% Male; 64.1% non-Hispanic White; 23.4% Black; 9.4% Hispanic/Latino; 3.1% Other) were randomly assigned to …

The Differences In Visuospatial Attentional Distribution Between Synesthetes And Non-Synesthetes, Identified Through Covert Visual Search, Kirsten Helena Ostbirk

Senior Projects Fall 2020

Synesthesia is a condition whereby sensory stimuli evoke unusual additional sensory perceptions and experiences, and can be identified through a visual search task. Grapheme-colour synesthetes have shown increased efficiency in visual search tasks, which some have hypothesized is a result of synesthetic colours drawing attention to the target stimulus, and have likened it to a weakened “pop-out” effect. Visual search has also been used to measure visuospatial attentional distribution, and findings from this method have supported the gradient model of attention, which proposes that cognitive resources are the most concentrated centrally in our visual field, and taper off, such that …

Do Distractor Suppression And Learning Intentionality Contribute To The Attentional Boost Effect?, Stephanie C. Crocco

Legacy Theses & Dissertations (2009 - 2024)

In the Attentional Boost Effect (ABE), a target-detection response enhances memory for simultaneously presented unrelated stimuli (Swallow & Jiang, 2010; see Swallow & Jiang, 2013 for a review). In two experiments, participants read aloud words simultaneously presented with a dot. Trials were presented every 1150 ms (Experiment 1) or every 2200 ms (Experiment 2). In a divided attention (DA) task, participants made a key-press to dots of a specific color. In a full attention (FA) task, they only read the words aloud while ignoring all dots. Under either intentional or incidental learning instructions, the DA task included Target words, and …