Cognition and Perception Commons^™

The Physical Discrimination And Possible Concept Of Object Weight That Exists In Infants And Toddlers, Anita Patnaik

Masters Theses & Specialist Projects

Young children’s attention to a variety of object features has been studied. However, very few studies have examined young children’s understanding of object weight. In order to investigate developmental changes in perception and categorization of weight, three tasks were given to 59 18-month-old to 3-year-old children. Three age groups (20; 27 and 34 months old) were analyzed for the final results. The first two tasks used a familiarization and novelty preference paradigm in which attention was assessed by measuring each child’s looking time.

The first task’s goal was to evaluate young children’s ability to discriminate objects on the basis of …

The Influence Of Cultural Identification And Gender-Linked Characteristics On The Body Satisfaction Of African American Men, Amy Lynn Baird

Masters Theses & Specialist Projects

The goal of the present study was to examine the relationships between gender schema, level of cultural identification, and body dissatisfaction in African American men. The first hypothesis under study was that men with a low identification to African American culture would report higher dissatisfaction with their body than those with a high cultural identification. Secondly, it was hypothesized that men with a large discrepancy from their culture’s description of an “ideal man” would also report higher body dissatisfaction than those with low or no discrepancy. Lastly, it was hypothesized that an interaction between variables would occur and that men …

The Differential Effects Of Mental Fatigue And Alcohol On Selective Attention, Emily Keller Bloesch

Masters Theses & Specialist Projects

Decrements in selective attention are a commonly experienced phenomenon that has practical implications for many industries. Two causes of such deficits are mental fatigue and alcohol intoxication, which impair selective attention by decreasing the efficiency of inhibitory processes. The present research examined the effects of these two factors on the selective attention subtest of the Useful Field of View test in both a baseline and an experimental session. Participants in the mental fatigue condition (n = 14) were tested while performing a divided attention task for two hours to induce mental fatigue. Those in the alcohol condition (n = 10) …

The Visual Perception Of Elasticity, Elizabeth Y. Wiesemann

Masters Theses & Specialist Projects

Two experiments were designed to evaluate human sensitivity to elasticity. Elastic objects bend when a force is applied to them. Observers saw two computer-generated bending rods (defined by the motions of 50 dots) on any given trial and were required to judge which rod was more flexible. Elasticity difference thresholds were calculated for each observer for each of three bending conditions. The rods bent in a plane that was either frontoparallel or oriented 42.5 or 85 degrees from frontoparallel. The results showed that observers could precisely discriminate between bending rods of different elasticities, independent of whether the bendings occurred in …