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Full-Text Articles in Social and Behavioral Sciences
Age-Related Differences In Context-Specificity Benefits Ambiguous Predictive Learning, Catherine Luna
Age-Related Differences In Context-Specificity Benefits Ambiguous Predictive Learning, Catherine Luna
Mahurin Honors College Capstone Experience/Thesis Projects
The present study investigated age differences in the context-specificity effect in learning. Ambiguity was manipulated in two conditions in a predictive learning paradigm (Callejas-Aguilera & Rosas, 2010) to encourage participants to attend to context. In the ambiguous condition, foods led to the presence of the illness equally as often as its absence. In the non-ambiguous condition, foods consistently led to the presence of the illness or consistently lead to its absence. Participants were instructed to make predictive judgments for foods leading to the presence of an illness in one of two restaurant contexts. During the test, participants made predictive judgments …
Solving The Aperture Problem: Perception Of Coherent Motion, Lindsey Shain
Solving The Aperture Problem: Perception Of Coherent Motion, Lindsey Shain
Mahurin Honors College Capstone Experience/Thesis 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, observers viewed displays composed of many straight contours, arranged in varying orientations and moving behind apertures. The total pattern of movement was consistent with a globally coherent trajectory. Observers were asked to estimate direction of global motion over a …