According to the hypothesis of a scalar property for time, the variability to time ratio should be constant. Three experiments tested the validity of this hypothesis in a restricted range of durations (standard values = 1, 1.3, 1.6, and 1.9 s). In each experiment, time intervals to be discriminated, reproduced, or categorized were presented with…

In a crowded dynamic world, temporal expectations guide our attention in time. Prior investigations have consistently demonstrated that temporal expectations speed motor behavior. We explore effects of temporal expectation on "perceptual" speed in three nonspeeded, cued recognition paradigms. Different hazard rate functions for the…

Distortions in time perception and timed performance are presented by a number of different neurological and psychiatric conditions (e.g. Parkinson's disease, schizophrenia, attention deficit hyperactivity disorder and autism). As a consequence, the primary focus of this review is on factors that define or produce systematic changes in the…

This study provides experimental evidence for automatic, relationship-specific social information processing in 13-year-old adolescents. Photographs of participants' liked, disliked, and unknown peers were used as primes in an affective priming task with happy and angry facial expression probes and in a hypothetical vignette task. For the…

Describes heuristic-systematic information-processing model and risk perception--the two major conceptual areas of the analysis. Discusses the proposed model, describing the context of the data collections (public health communication involving cancer epidemiology) and providing the results of a set of three replications using the proposed model.…

Investigates preschool children's ability (n = 30) to discriminate age, and subject's use of different facial areas in ranking facial photographs into age order. Results indicate subjects from 3 to 9 years can successfully rank the photos. Compared with other facial features, the eye region was most important for success in the age ranking task.…

Presented is experimental evidence that humans develop strong preferences for objects that become familiar through repeated exposure, even when the exposures are so degraded that they cannot be discriminated as stimuli previously seen. Implications are made regarding other studies where affective discriminations are made with very little stimulus…

Undergraduate judges were assigned to groups that differed in information-processing loads. Correct observations decreased and reports of illusory correlation increased as the information-processing load increased. (Author)

Argues that accounting for introspection within a theory of consciousness can be achieved through constructing information- processing models that account for "Type-C" processes in which awareness of the stimulus is necessary for an intentional action. Suggests that the Shallice (1988) framework provides an initial account of Type-C…

This research explores the way in which young children (5 years of age) and adults use perceptual and conceptual cues for categorizing objects processed by vision or by audition. Three experiments were carried out using forced-choice categorization tasks that allowed responses based on taxonomic relations (e.g., vehicles) or on schema category…

Draws from perceptual and cognitive psychology to present a theoretical basis for the principles of interpretation developed by Freeman Tilden. Emphasized is cognitive map theory which holds that information units people receive, code and store are structured into cognitive models intended to represent the environment. (Author/WB)

Defines a "communicate"--the objectification of a subject's internal model of the object of reality by means of a certain set of physical signs--and examines its information value with relation to intelligent systems. (CWM)

Discusses responses to Needham's research on infants' use of featural, physical and experiential information to segregate displays. Considers characterization of different kinds of information infants use when segregating objects. Discusses relations between processes underlying object segregation. Considers the roles of visual versus linguistic…

Describes a conceptual schema based on four basic requirements of the learner--stimulation, order, strategy, and meaning. These basic learner requirements are subdivided to describe the instructional environment necessary to provide an optimum fit between the learner and the environment. Fourteen references are cited. (Author/CHC)

Describes four experiments that examined the influence of an information units' category membership, normative importance, and goal-relatedness on its perceived importance. Results suggest that category membership and goal-relatedness did affect perceptions of importance.(HOD)