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Full-Text Articles in Medicine and Health Sciences
Ecology Of Depression In Late Childhood And Early Adolescence: A Profile Of Daily States And Activities, Reed Larson, Marcela Raffaelli, Maryse H. Richards, Mark Ham, Lisa Jewell
Ecology Of Depression In Late Childhood And Early Adolescence: A Profile Of Daily States And Activities, Reed Larson, Marcela Raffaelli, Maryse H. Richards, Mark Ham, Lisa Jewell
Department of Psychology: Faculty Publications
This study investigated daily states and time use patterns associated with depression. Four hundred eighty-three 5th to 9th graders reported on their experience when signaled by pagers at random times. Depressed youth reported more negative affect and social emotions, lower psychological investment, lower energy, and greater variability in affect. These differences were weaker for 5th and 6th graders, suggesting that self-reported feeling states are a poor indicator of depression prior to adolescence. No differences were found in the daily activities of depressed youths nor in the amount of time spent alone, but depressed youths experienced other people as less friendly …
Serial Conditioning As A Function Of Stimulus, Response, And Temporal Dependencies, William L. Palya, Rick A. Bevins
Serial Conditioning As A Function Of Stimulus, Response, And Temporal Dependencies, William L. Palya, Rick A. Bevins
Department of Psychology: Faculty Publications
Six experiments were used to examine the effects of explicit response, stimulus, and temporal dependencies on responding in an interfood interval. The first two experiments demonstrated that 10- segment 60-s interfood clocks controlled similar distributions of key pecking in pigeons regardless of whether response-reinforcement contiguity was required, allowed, or precluded. The third and fourth experiments found that in the absence of an explicit response-reinforcement dependency, systematic explicit stimuli in an interfood interval were sufficient to establish and maintain the characteristic distribution of key pecking and that an interval without an explicit clock failed to establish or maintain key pecking. The …
Priming Effects In Perceptual Classification, John H. Flowers
Priming Effects In Perceptual Classification, John H. Flowers
Department of Psychology: Faculty Publications
Priming stimuli that spatially flank a fixated target stimulus may cause either facilitation or interference with target classification, depending on experimental context. Two experiments demonstrated distinct effects of response compatibility and semantic congruity between flankers and target. Response competition occurred when targets were flanked by context stimuli associated with the opposite response, but this effect diminished when the target was delayed relative to the flankers. Facilitative priming by response-compatible flankers, in contrast, required prior exposure of the flankers, and was strongly influenced by the semantic congruity of flankers and targets. These differing time courses suggest that perceptual priming encompasses a …
Introduction Of 38th Session Of The Nebraska Symposium On Motivation, Richard A. Dienstbier
Introduction Of 38th Session Of The Nebraska Symposium On Motivation, Richard A. Dienstbier
Department of Psychology: Faculty Publications
This 38th session of the Nebraska Symposium on Motivation coincided with the 100th anniversary of the teaching of psychology at the University of Nebraska (1889) and with the 50th anniversary of the founding of the Department of Psychology (1939). The originator of early psychological instruction here, and the person to whom all recent volumes of this Symposium have been dedicated, is Harry K. Wolfe, one of Wilhelm Wundt's first two American students. In part because of the significance of these anniversaries, and because of the identification of this Symposium with psychology at the University of Nebraska, the Symposium Committee and …