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Full-Text Articles in Sense Organs
Brighter Noise: Sensory Enhancement Of Perceived Loudness By Concurrent Visual Stimulation, Yoav Arieh, Eric C. Odgaard, Lawrence E. Marks
Brighter Noise: Sensory Enhancement Of Perceived Loudness By Concurrent Visual Stimulation, Yoav Arieh, Eric C. Odgaard, Lawrence E. Marks
Department of Psychology Faculty Scholarship and Creative Works
Two experiments investigated the effect of concurrently presented light on the perceived loudness of a low-level burst of white noise. The results suggest two points. First, white noise presented with light tends to be rated as louder than noise presented alone. Second, the enhancement in loudness judgments is resistant to two experimental manipulations: varying the probability that light accompanies sound and shifting from a rating method to a forced choice comparison. Both manipulations were previously shown to eliminate a complementary noise-induced enhancement in ratings of brightness. Whereas noise-induced enhancement of brightness seems to reflect a late-stage decisional process, such as …
Effects Of Age On Motor Preparation And Restructuring, Paul Amrhein, Noreen Goggin, George Stelmach
Effects Of Age On Motor Preparation And Restructuring, Paul Amrhein, Noreen Goggin, George Stelmach
Department of Psychology Faculty Scholarship and Creative Works
Age-related decrements in motor plan restructuring were investigated. In this experiment, older and younger adults performed a discrete aiming task that involved responses that were precued and responses that were modified at the time of an imperative signal. On 75% of the trials, the precue specified the response-stimulus (valid trials) with respect to the movement parameters of the arm (left or right) and direction (toward or away). On the remaining 25% of the trials, the response-stimulus was different from the precue (invalid trials) in that the subject was required to modify a planned movement by changing the arm to be …