Levels of experienced dimensionality in children and adults

This work presents a new conceptualization of the contrast between holistic and differentiated perception of multidimensional stimuli. Specifically, two hypotheses about the experiential status of dimensions within holistic perception are proposed and tested as explanations of young children's general perceptual mode and adults' integral mode. The major result is that three levels of dimensional status are realized: (1) the hypothesis of nonprimary axes characterizes adult “integral” perception of saturation and brightness relations, (2) the hypothesis of primary but not mandatory axes characterizes kindergarteners' “integral” perception of size and shade relations, and (3) the notion of mandatory axes characterizes adults' separable perception of size and shade relations. These results indicate a new interpretation of the integrality-separability distinction and the derivative developmental hypothesis. It is specifically hypothesized that the developmental history of most dimensional combinations includes these three levels.     

Effectiveness of hand overcorrection for topographically similar and dissimilar self-stimulatory behavior

Response contingent hand overcorrection was used to reduce the frequency of self-stimulatory behaviors in four retarded adult males. For two of the subjects, the treated behaviors (hand shaking and nose touching) involved hand movements which were topographically similar to the hand overcorrection procedure. For the other two subjects, behaviors topographically dissimilar to the treatment procedure were treated (inappropriate laughing and head weaving). All four behaviors were decreased in frequency during treatment. However, the hand overcorrection procedure was more effective with the topographically similar behaviors.     

Maintenance of children's rehearsal strategies: Effects of amount of training and strategy form

Fifty third- and fourth-grade children, assigned to groups varying in Amount (1 or 2 sessions) and Type (cumulative-cluster or cluster) of strategy training or to a control condition, participated in three free recall sessions, two training sessions with blocked lists of common words and a maintenance session with a 50-states list blocked by geographical regions. During strategy training and maintenance, the cumulative-cluster groups recalled more than the cluster and control groups. Amount of training significantly influenced degree of strategy maintenance, but only in the cumulative-cluster strategy. Strategy form was highly correlated with recall in the cumulative-cluster condition, while total study time (effort) was related to recall only in conditions where strategy instructions were not given. The form of the strategy during training predicted transfer form and recall. 100% of the children who received extended training and demonstrated good strategy form during acquisition sessions successfully transferred the strategy to the geography task.     

Heightened sexual arousal and physical aggression: An extension to females

In order to examine the effects of heightened sexual arousal upon aggression by females, subjects were first angered or not angered by a female confederate, next exposed to one of four types of stimuli (nonerotic scenes; pictures of seminude young males; pictures of nude males; pictures of couples engaged in various acts of lovemaking), and finally provided with an opportunity to aggress against the confederate by means of electric shock. In accordance with previous research conduced with males, it was hypothesized that exposure to mild erotic stimuli would inhibit subsequent aggression, while exposure to more arousing stimuli of this type would facilitate such behavior. Results offered support for both predictions. In addition, it was found that females responded with increased aggression to types of erotic stimuli previously found to inhibit such behavior by males.     

The role of “irrelevant” derogation in vicarious aggression catharsis: A field experiment

In order to test hypotheses about the occurence of aggression catharsis, a field experiment was conducted in which passengers in taxi cabs served as subjects. En route to each subject's destination, the taxi driver left the cab with the meter operating for an amount of time which resulted in a small or large overcharge (the first independent variable). When the driver returned, subjects read one of four letters which either praised or derogated the driver (the second independent variable) on a relevant or irrelevant dimension (the third independent variable). Subjects' responses confirmed the principal hypothesis on several different atitudinal and behavioral dependent measures: angered subjects tended to complain less often, more often paid the overcharge, and more often left a tip, when they read the irrelevant derogation letter. The results contribute to the delineation of a set of conditions under which vicarious catharsis can be clearly observed.