Cognition and Perception Commons^™

Meaning In Life And Metacognition: Application Of The Self-Validation Hypothesis, Liam Hill

Masters Theses & Specialist Projects

Meaning in Life is a robust predictor of various positive outcomes, and provides a buffer against a host of negative outcomes. Due to this fact, it becomes important to examine all the facets of a meaningful life. One consistent predictor of Meaning in Life (MIL) in the literature is one’s sense of positive affect. I tested the idea that it is possible to doubt (or have confidence in) one’s affect, such that under conditions of doubt, positive affect is less strongly related to MIL. It may be the case that positive affect predicts MIL because of what we think of …

The Effects Of White Noise Exposure On Cognition: An Examination Of The Impacts Of White Noise Presentation On Recall And Cognitive Load, Cordelia Ann Witty

Masters Theses & Specialist Projects

White noise has historically been utilized as a tool for offsetting or masking sounds that may be perceived as disruptive, most commonly during the sleeping process. More recently, literature has begun to explore the possibility of using white noise as a tool to suppress these potentially distracting sounds within the area of cognitive processing. Present literature suggests that white noise may be a useful tool for masking noises like these in order to improve cognitive performance, especially for those individuals who may possess inattentive symptoms. However, this research has largely been conducted using tasks that involve working memory or visual …

The Effect Of Environmental Context Upon Visual Distance Perception, Jessica M. Dukes

Masters Theses & Specialist Projects

The ability of 16 younger adults to visually perceive distances in depth was evaluated within three environmental contexts (indoors in the dark, indoors in the light, and outdoors). The observers' task was to bisect an 8m distance interval in all contexts using both monocular and binocular vision. In the outdoor environment (a natural grassy field), the observers' judgments indicated perceptual compression of farther distances similar to that obtained in many previous studies. In the indoor lighted environment (a 10.2 x 9.6m laboratory room), the observers' judgments were consistent with perceptual expansion of farther distances. Finally, there was a beneficial effect …

Do Emotion Words Influence Age Effects In Delayed Match-To-Sample Performance For Emotional Faces?, Ying-Han Li

Masters Theses & Specialist Projects

Age differences are apparent in using verbal labels of emotion to categorize emotion face stimuli. Particularly, older adults have more difficulty detecting emotion cues like anger and fear relative to younger adults, but seem to have less difficulty with disgust cues. However, age differences are diminished in situations when participants are limited to two possible emotion choices or are required to simply match stimuli based on emotion cues without the use of labels. One question that emerges from the disparities in these findings is the role that emotion labels themselves play in driving possible age differences in emotion perception. The …

Reliability Of Index And Subtest Discrepancy Scores From The Kabc-Ii Nu, Grant Hacherl

Masters Theses & Specialist Projects

School psychologists often consider index- and subtest-level discrepancy scores from intelligence tests when making decisions regarding students’ special education eligibility. Best practices for clinical decision-making indicate that scores may only be considered if they meet an established standard of reliability. Therefore, it is essential to assess whether an interpretation of discrepancy scores can be considered reliable. This research used data provided in the supplemental manual of the Kaufman Assessment Battery for Children, Second Edition Normative Update (KABC-II NU) to calculate internal reliability coefficients (ICR) for discrepancy scores for each of the sample age group batteries, ages 3-6 and ages 7-18. …

The Effects Of Message Matching In Climate Change Persuasion, Matthew R. Penner

Masters Theses & Specialist Projects

Public opinions of climate change are not consistent with the reality that climate change is occurring. Effective persuasive messages must be created to ensure that irreparable damage to the environment is prevented. This study investigated the cognitive processes that occur when an individual is exposed to a persuasive message regarding environmental concerns that is matched to an individual’s personality characteristics like right wing authoritarianism and purity.

Messages on two environmental topics (solar panels and the Environmental Protection Agency) were created. Each topic was framed in multiple ways to test hypotheses about personality-based message matching. Participants completed a thought listing task …

The Influence Of Aging, Gaze Direction, And Context On Emotion Discrimination Performance, Alyssa Renee Minton

Masters Theses & Specialist Projects

This study examined how younger and older adults differ in their ability to discriminate between pairs of emotions of varying degrees of similarity when presented with an averted or direct gaze in either a neutral, congruent, or incongruent emotional context. For Task 1, participants were presented with three blocks of emotion pairs (i.e., anger/disgust, sadness/disgust, and fear/disgust) and were asked to indicate which emotion was being expressed. The actors’ gaze direction was manipulated such that emotional facial expressions were depicted with a direct gaze or an averted gaze. For Task 2, the same stimuli were placed into emotional contexts (e.g., …

Aging And Visual Spatial Integration, Alexia J. Higginbotham

Masters Theses & Specialist Projects

The current study evaluated the ability of 20 younger and 20 older adults to discriminate shapes depicted by Glass patterns. On any given trial, observers identified a particular pattern as either possessing a radial or concentric organization. Detecting a shape defined by a Glass pattern requires the successful detection of the orientations of its constituent local dipoles. In addition, long-range processes are needed to integrate the spatially separated dipoles into perceivable contours that have a particular (e.g., radial or concentric) organization. In the current experiment, the shapes were defined by either 40 or 200 oriented dipoles spread over an area …

Aging And The Perception Of Coherent Motion, Lindsey Marie Shain

Masters Theses & Specialist Projects

The aperture problem describes an effect by which a contoured stimulus, moving behind an aperture with both ends occluded, appears to move in a direction perpendicular to its own orientation. Mechanisms within the human visual system allow us to overcome this problem and integrate many of these locally ambiguous signals into the perception of globally coherent motion. In the current experiment, younger and older observers viewed displays composed of either 64 or 9 straight contours, arranged in varying orientations and moving behind circular apertures. Because these lines moved behind apertures, their individual local motions were ambiguous with respect to direction …

Unimanual And Bimanual Haptic Shape Discrimination, Catherine Jane Dowell

Masters Theses & Specialist Projects

In the current study 24 younger adults and 24 older adults haptically discriminated natural 3-D shapes (bell peppers, Capsicum annuum) using unimanual (one hand used to explore two objects) and bimanual (both hands used, but each hand explored separate objects) successive exploration. Haptic exploration using just one hand requires somatosensory processing in only one cerebral hemisphere (the hemisphere contralateral to the hand being used), while bimanual haptic exploration requires somatosensory processing in both hemispheres. Previous studies related to curvature/shape perception have found either an advantage for unimanual exploration over bimanual exploration or no difference between the two conditions. In contrast …

Emotion Discrimination In Peripheral Vision, Hayley M. Lambert

Masters Theses & Specialist Projects

The recognition accuracy of emotion in faces varies depending on the discrete emotion being expressed and the location of the stimulus. More specifically, emotion detection performance declines as facial stimuli are presented further out in the periphery. Interestingly, this is not always true for faces depicting happy emotional expressions, which can be associated with maintained levels of detection. The current study examined neurophysiological responses to emotional face discrimination in the periphery. Two event-related potentials (ERPs) that can be sensitive to the perception of emotion in faces, P1 and N170, were examined using EEG data recorded from electrodes at occipitotemporal sites …

Perceptions Of Uncivil And Sexual Harassment Perceptions By Gender, Employment Status, And Likelihood To Sexually Harass, John Schroader

Masters Theses & Specialist Projects

This research examined gender and employment status (full-time worker or student) differences in perceptions of workplace sexual harassment and incivility. Previous and recent meta-analyses suggested small effects by gender. The current research introduced a method of measuring perceptions by forcing a choice of identifying a behavior as sexual harassment, incivility, or neither. The instrument was designed in this way to determine if small effects existed because males tended to have overlapping definitions of sexual harassment and incivility. Propensity to sexually harass was also measured. Results suggest no gender or employment status effects on the method, but propensity to sexually harass …

Effects Of Aging And Reward Motivation On Non-Verbal Recognition Memory, Meagan D. Luttrell

Masters Theses & Specialist Projects

There is a long history of research on the effects of reward motivation on memory, but there are still questions concerning how such motivational variables affect memory. In a study that examined the influence of reward anticipation on episodic memory, Adcock, Thangavel, Whitfield-Gabireli, Knutson, and Gabrieli (2006) found that memory was better for scenes preceded by high value reward cues than low value cues (see also Cushman, 2012; Spaniol, Schain, & Bowen, 2013). More recently, Castel, Murayama, Friedman, McGillivray, & Link (2013) observed that anticipation of reward influences selective attention to “to be remembered” (TBR) words and the memories that …

Beauty In Snowflakes: Complexity And Visual Aesthetics, Olivia C. Adkins

Masters Theses & Specialist Projects

Experimental aesthetics research has been conducted since the nineteenth century. Interestingly, however, few studies have examined the perceived beauty of naturally shaped objects. In the current experiment, 204 participants were presented with a set of ten snowflake silhouettes that varied in complexity (perimeter relative to area); they were similarly presented with ten randomly-shaped, computer-generated, solid objects that also varied in complexity. For each stimulus set, the participants selected the single snowflake or object that was the most beautiful (Fechner’s method of choice). The results for the solid objects replicated the findings of earlier research: the most and least complex objects …

Age And Context Dependency In Causal Learning, Katherine Danielle Lowry

Masters Theses & Specialist Projects

The ability to make associations between causal cues and outcomes is an important adaptive trait that allows us to properly prepare for an upcoming event. Encoding context is a type of associative processing; thus, context is also an important aspect of acquiring causal relationships. Context gives us additional information about how two events are related and allows us to be flexible in how we respond to causal cues. Research indicates that older adults exhibit an associative deficit as well as a deficit in contextual processing; therefore, it seems likely that these deficits are responsible for the deficit in older adults’ …

The Effects Of Aging On Associative Learning And Memory Retrieval In Causal Judgment, Jessica Parks Arnold

Masters Theses & Specialist Projects

Research has shown that detecting and judging causal relationships requires associative learning and memory. Retrospective revaluation of causal cues requires associative memory (Aitken, Larkin, & Dickinson, 2001) to bind multiple cues together and use these associations to retrieve unseen cues for revaluation of their associative value. The difficulty that older adults experience with respect to retrospective revaluation could occur because of their deficit in associative binding and retrieval (Mutter, Atchley, & Plumlee, 2012). Like retrospective revaluation, blocking requires cue – outcome associative learning, but unlike retrospective revaluation, blocking does not require binding two cues together nor does it require using …

Dynamic Tactile Information Is Sufficient For Precise Curvature Discrimination, Jacob R. Cheeseman

Masters Theses & Specialist Projects

Our tactile perceptual experiences occur when we interact, actively and passively, with environmental objects and surfaces. Previous research has demonstrated that active manual exploration enhances the tactile perception of object shape. Nevertheless, the factors that contribute to this enhancement are not well understood. The present study evaluated the ability of 14 older adults to discriminate curved surfaces by actively feeling objects with a single index finger and by passively feeling objects that moved relative to a restrained finger. The curvature discrimination thresholds obtained for passive-dynamic touch were significantly lower than those that occurred during active-dynamic touch. This result demonstrates that …

The Electrophysiology Of Written Informal Language, Taylor S. Blaetz

Masters Theses & Specialist Projects

Language is an essential component of human behavior. It is ubiquitous, but more importantly, it is malleable and it is constantly changing. Part of the dynamic nature of informal communication is the introduction and adoption of new linguistic elements. Online communication provides a window into this informal public discourse; therefore, it may be useful for testing hypotheses about the processes underlying the acquisition and use of new words. The comprehension of informal language may lead to an understanding of how these new informal words are integrated into our mental lexicon. The current study was an electroencephalographic (EEG) investigation of the …

The Effects Of Age And Task On Visual Emotion Processing, Nicole Elaine Chambers

Masters Theses & Specialist Projects

Younger adults’ perception of and attention to facial stimuli are enhanced by positive and negative emotional expressions, with negativity leading to a greater benefit than positivity. Conversely, older adults demonstrate a positivity bias, devoting more attention to positive stimuli and less to negative. It is unclear if age differences in these attentional preferences emerge due to differences in how their perceptual systems respond to positive and negative stimuli. Emotional facial expressions elicit enhanced P1 and N170 components of visually-evoked event-related potentials (ERP) over posterior scalp regions associated with vision. The current study examined the extent to which angry and happy …

Short-Term Visual Deprivation, Tactile Acuity, And Haptic Solid Shape Discrimination, Charles E. Crabtree

Masters Theses & Specialist Projects

The visual cortex of human observers changes its functionality in response to visual deprivation (Boroojerdi et al., 2000). Behavioral studies have recently documented enhanced tactile abilities following a short period of visual deprivation (Facchini & Aglioti, 2003; Weisser, Stilla, Peltier, Hu, & Sathian, 2005). The current study investigated the effects of visual deprivation on two unique tactile tasks. While Facchini and Aglioti observed significant effects of visual deprivation, neither Wong, Hackeman, Hurd, and Goldreich (2011) nor Merabet et al. (2008) observed these effects. Corroborating these more recent results, no difference in grating orientation discrimination performance was observed between the sighted …

Alternate Forms Reliability For Written Expression Probes, Ashley Carey

Masters Theses & Specialist Projects

The use of Curriculum-Based Measurement (CBM) in schools continues to increase, as it is a useful brief assessment of students’ basic academic skills. CBM measures are used for multiple tasks such as identifying students at-risk, creating local norms, monitoring students’ progress during interventions, and assisting with special education eligibility determinations. Much of the research has focused on CBM in the areas of math and reading. Relatively few studies have examined the area of CBMWritten Expression. Even fewer studies exist exploring the reliability among alternate writing forms. This study determined alternate form reliability coefficients for written expression probes at the second, …

A Beautiful Mind: Examining The Effects Of Emotional Intelligence And Physical Attractiveness On Employee Evaluations, Tessa Seidler

Masters Theses & Specialist Projects

The current paper describes the concepts of emotional intelligence (EI) and physical attractiveness in relation to their impact on applicant evaluations. As EI has been shown to be linked to work outcomes including job performance, job satisfaction and interpersonal relationships, and as physical attractiveness has been found to influence rater decisions and perceptions of intellectual competence, an examination of these constructs in concert was the focus of the current study. Results found that, on average, attractive employees, older employees, and male employees were rated higher on several dimensions than their counterparts. There was no support for rater EI being linked …

The Influence Of Spatial Distance Priming On Test Anxiety And Judgments, Eric R Raap

Masters Theses & Specialist Projects

This paper examined the effects of distance priming on test anxiety and judgment. Research suggests that individuals’ perceived distance can impact their affect and judgments, which sheds light on the principle of “distance equals safety” (Williams & Bargh, 2008). Taking an exam invokes both cognitive and emotional anxiety, such as worry, panic, and tension. It is hypothesized that the distance priming may reduce test anxiety—particularly, the emotionality aspect—as well as perceived test difficulty. The results showed that, counter to the hypotheses, there was no significant difference among the three priming groups in their emotional test anxiety or perceived test difficulty. …

Ages Of Engagement In Risk Taking And Self-Harm: An Investigation Of The Dual Systems Model Of Adolescent Risk Taking, Brittany Dykstra

Masters Theses & Specialist Projects

Risk taking (RT) and self-harm (SH) are clinically, conceptually, and empirically
related, yet separate constructs, which occur most frequently during adolescence. The current study utilized retrospective reports of college students to determine reported ages of engagement in RT and SH behaviors. Reported ages were compared with predictions for ages of high frequency engagement in RT based on the Dual Systems Model of Adolescent Risk Taking (DSMART; Steinberg, 2010). The sample consisted of 228 college students, ranging in age from 18 to 48 years (mean 22.8), who completed a survey of commonly investigated RT (12 items) and SH (18 items) behaviors. …

The Influence Of Children's Affective Ties On The Goal Clarification Step Of Social Information Processing, Amanda C. Thorn

Masters Theses & Specialist Projects

Previous studies have shown that children’s social goals are influenced by
emotion and that emotions can be manipulated using relationships. The present study combines these previous findings by examining the effect of children’s relationships on social goals. Social goals were examined in second and fifth grade children using hypothetical ambiguous provocation situations in which the relationship between the participant and the provocateur was manipulated by inserting the name of a friend, enemy, or a neutral peer into the story. After each situation, children rated the importance of four different social goals, indicating which of the four would be the most …

Intrinsic And Extrinsic Motivation: Abraham Lincoln As An Adult Learner, Warren Greer

Masters Theses & Specialist Projects

Over the last two decades, research has identified factors that foster versus undermine human motivation and well being with important implications for learning and performance. Much of the research is concerned with intrinsic versus extrinsic motivation and autonomous versus non-autonomous learning environments. The data suggests that learning and performance are often significantly enhanced in autonomy-supportive environments that foster intrinsic motivational perspectives. This study examines the lived experience of Abraham Lincoln in the context of his adult learning motivation, forming a qualitative narrative around his adult educational experiences. It was hypothesized that Abraham Lincoln benefited from learning experiences with high levels …

Age Differences In Reward Anticipation And Memory, Kristen L. Cushman

Masters Theses & Specialist Projects

Aging research on item- and associative-recognition memory has demonstrated that older adults are deficient in forming associations between two unrelated stimuli. Although older adult performance on tests of item-recognition is similar to younger adult performance, older adults perform worse than younger adults on tests of associative memory (Naveh-Benjamin, Hussain, Guez, & Bar-On, 2003). In addition to the idea that younger adult performance on associative-recognition tests is superior to that of older adults, research has shown that reward cues can enhance motivated learning and item memory performance of younger adults. In an fMRI study that examined the influence of reward anticipation …

Are All Older Adult Transgressors Treated Equally?, Heather Marie Dahlgren

Masters Theses & Specialist Projects

Research has shown that young adults treat older adults with less blame and more forgiveness when they commit a social transgression. This study sought to understand whether the stereotype of an assumed positive personality and/or a supposed lack of cognitive ability are potential driving forces behind the greater leniency that young adults display toward older transgressors. Seventy-five young adult participants were randomly assigned to one of five experimental conditions. Participants’ aging stereotypes were primed with one of four paragraphs that depicted older adults as (a) socially warm and cognitively competent, (b) socially cold but cognitively competent, (c) socially warm but …

Teleological Reasoning In Adults: Believing In The Purpose Of Events, Carrie Jeanette Guggenmos

Masters Theses & Specialist Projects

Teleological reasoning reflects the general tendency to view objects, behaviors and events in terms of their “purpose.” Although healthy educated adults tend to refrain from committing errors in teleological reasoning about objects, our knowledge regarding how adults reason about events is limited. It has been suggested that teleological reasoning biases our interpretations of emotionally significant and unexpected life events of which a physical or social cause is absent or unsatisfactory. The current investigation seeks to better understand the types of events that evoke a teleological perspective and the conditions and individual difference factors that facilitate it. The results revealed that …

The Effect Of Gender And Implicit Theories Of Math Ability On Math Interest And Achievement, Jillian Hendricks

Masters Theses & Specialist Projects

The current study examined whether males and females differed in math achievement and held different beliefs regarding the malleability of math ability at the elementary level. The study also explored the relationships between students’ implicit theories of math ability, math interest, and math achievement. Potential grade level differences in math trait beliefs were also investigated. Study participants consisted of a total of 1802 students from six elementary schools that participate in the Gifted Education in Math and Science (GEMS) Project. Project GEMS is a federal grant project seeking to encourage science and math interest and achievement in children from lowincome …