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Your search keyword '"Jennifer L. Bittner"' showing total 5 results
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5 results on '"Jennifer L. Bittner"'

1. Converging operations and the role of perceptual and decisional influences on the perception of faces: Neural and behavioral evidence

Author

Jennifer L. Bittner, Rebecca Von Der Heide, Daniel Fitousi, and Michael J. Wenger

Subjects
Male, Cognitive Neuroscience, media_common.quotation_subject, Decision Making, Experimental and Cognitive Psychology, Electroencephalography, 050105 experimental psychology, Task (project management), 03 medical and health sciences, Young Adult, 0302 clinical medicine, Arts and Humanities (miscellaneous), Eeg data, Face perception, Perception, Developmental and Educational Psychology, medicine, Humans, 0501 psychology and cognitive sciences, Evoked Potentials, media_common, medicine.diagnostic_test, 05 social sciences, Brain, Identification (information), Neuropsychology and Physiological Psychology, Behavioral data, Pattern Recognition, Visual, Female, Psychology, Facial Recognition, 030217 neurology & neurosurgery, Cognitive psychology
Abstract

Theoretical analyses suggest that the regularities indicative of holistic processing can be obtained by combinations of perceptual and decisional factors. Kuefner and colleagues used electrophysiological results to suggest that the composite face effect is driven solely by perceptual factors. Two limitations of their approach are (a) it did not involve behavioral measures of perceptual sensitivity or bias, and (b) it is unclear how the measures used in that study are consistent with other measures of perceptual and decisional processing. Eight observers completed three tasks involving the stimuli used by Kuefner et al.. The first was a direct replication. The second was a complete identification task, associated with the perceptual and decisional distinctions formalized in general recognition theory. The third was an implementation of the Eriksen fianker task, which allows for a pattern of results that have been interpreted in terms of perceptual and decisional influences. While the empirical distinctions used by Kuefner et al. were not consistent with either the EEG data from the other tasks or the established behavioral measures of perceptual sensitivity and decisional bias, the inferences drawn from the EEG and behavioral data from those tasks were consistent with one another, underscoring the importance of converging operations.

Published
2017

4. Evidence for criterion shifts in visual perceptual learning: Data and implications.

Author

Michael J. Wenger, Angelina M. Copeland, Jennifer L. Bittner, and Robin D. Thomas

Subjects
PSYCHOLOGY of learning, MEMORY, EDUCATION, ANIMAL intelligence
Abstract

Work on visual perceptual learning for contrast detection has shown that reliable decreases in detection thresholds are accompanied by reliable increases in false alarm rates (Wenger & Rasche, 2006). The present study assesses the robustness and replicability of these changes, demonstrating that they are independent of a variety of task demands (i.e., the specific method used for perceptual practice and threshold estimation) and the presence or absence of trial-by-trial feedback and that the source of the increases can be found in shifts in changes in sensitivity and in bias for detection, identification, or both. Although the increase in false alarm rates suggests a strategic shift in response criteria for detection, we demonstrate that there are multiple potential explanations, including explanations that do not require strategic shifts on the part of the observer. The empirical evidence and analysis of alternative explanations reinforce the inference that visual perceptual learning may involve more than changes in perceptual sensitivity and that cortical circuits beyond the primary visual areas may be involved. [ABSTRACT FROM AUTHOR]

Published
2008
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