Channels and stages in human information processing: A limited analysis of theory and methodology

This article reviews the status of the theoretical construct of capacity. Four basic questions are discussed: (1) What is capacity? (2) How is capacity measured? (3) Is capacity limited? (4) If so, where is it limited? It is claimed that empirical answers to these questions have been unsatisfactory due to theoretical and methodological issues that need be resolved. Data are presented to illustrate such difficulties. The construct of capacity has become more and more vacuous and caution is required whenever capacity is invoked to explain behavior. These problems can be overcome by careful research and well-defined models. Capacity can be a soup stone, a millstone, or a touchstone, depending upon how it is used.     

Algorithms for processing spatial information

Pairs of stimuli taken from a psychometric measure of spatial aptitude were shown to 9-year-olds, 13-year-olds, and adults. The stimuli in pairs were (a) either identical or mirror images, and (b) presented in orientations that differed by 0-150 degrees. Individuals judged, as rapidly as possible, if the stimuli in a pair would be identical or mirror images if presented at the same orientation. In Experiment 1, in which the stimuli were letter-like characters, at all ages most persons solved the problems using an algorithm in which an individual encodes the stimuli in working memory, mentally rotates one stimulus to the orientation of the other, compares them to determine if they are identical, and responds. In Experiment 2, the stimuli were multielement flags; here, the modal algorithm for both 9- and 13-year-olds differed from the previously described algorithm in that if the comparison process revealed that the stimuli were dissimilar, individuals did not respond immediately, but continued processing until a self-imposed deadline was reached. Among adults, the modal algorithm was the same one used in Experiment 1. Results are discussed in terms of the roles of encoding in contributing to the use of a particular algorithm.     

Cheating,intention, and punishment from an equity theory perspective

Male college students were given the opportunity to deliver aversive noise to a partner (confederate) contingent on the partner's “mistakes” in a learning task. Subjects were either not informed about a reward or told that they, their partner, or a charity would receive a monetary reward for speedy learning. Half of the subjects observed the confederate cheat, while half did not observe any deceptive behavior. The intensity of punitive behavior seemed to vary in accordance with predictions derived from equity theory. That is, cheating for a charity, a “good cause” resulted in less intense punishment than did cheating for selfish gain. On the other hand, mistakes, uncomplicated by cheating, which deprived a charity were punished more intensely than were mistakes whose only result accrued to the confederate himself.     

When is an easy task difficult and vice versa? A reply to lane

Lane has argued that kantowitz and Knight incorrectly predicted an interaction between primary and secondary task difficulty for the variable-allocation model of attention. It is shown that such an interaction is indeed obtained if task-performance difficulty is defined in terms of capacity and only reasonable transformations of data are permitted. This interaction holds for any set of monotonic resource operating characteristics.     

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.     

Perception of internal elements of compound figures by one-month-old infants

Previous research has shown that infants younger than 2 months frequently concentrate their attention on peripheral or external features of visual stimuli and that they do not appear to process the internal elements of a compound visual stimulus composed of a simple geometric figure enclosed in a larger figure. A visual habituation-dishabituation paradigm was used to determine whether 1-month-old infants would process internal information if the internal elements of the stimulus were patterns often found to be preferred by young infants. Four groups of eight infants each were habituated to a compound stimulus consisting of a square or triangle surrounding a checkerboard or bull's-eye. Following habituation each group was presented with one of four types of stimulus: the identical stimulus (control group), a stimulus differing only in the internal component, a stimulus differing only in the external component, or a stimulus differing in both components. The results of the present study suggest that when the internal element of a compound stimulus is a highly preferred or salient stimulus, the young infant will process information about its characteristics.     

Development of mental rotation: A speed-accuracy study

Pairs of letters and numbers were shown to 11-, 14-, and 19-year-olds. One stimulus in a pair was presented upright. The second, which was either identical to the first or a mirror image of it, was rotated 0 to 150° from the vertical. Individuals judged if the stimuli in a pair would be identical or mirror images if presented at the same orientation. They did so under instructions that emphasized accurate responses, fast responses, or fast and accurate responses. Typically, responses were (1) most accurate and slowest when accuracy was emphasized, and (2) least accurate but fastest when speed was emphasized. The data from the three instructional conditions were used to derive measures of response times in which accuracy of response was equated for the three age groups. At 95% accuracy 14- and 19-year-olds mentally rotated stimuli at the same rate, which was faster than 11-year-olds' rate. At 100% accuracy, 19-year-olds mentally rotated stimuli more rapidly than both 11- and 14-year-olds, who did not differ from one another.     

Attributions and other inferences: Processing information about the self versus others

This study focuses on the attributional inferences involved in the comprehension of behaviors and on possible differences between the process of comprehending one's own behaviors and those of another person. Both the content of attributional judgments and the time taken to make the judgments were measured, in a design involving the comprehension of behaviors that were high or low in desirability and distinctiveness and that were understood as the subject's own versus another person's. Results show that the inferential processes in the comprehension of one's own and another's behavior are generally similar. Exceptions are where organized knowledge about the self (a self-schema) is brought into use and where differences in “perspective” between self and other influence processing. Discussion centers on the implications of the results for theories of comprehension and inference, including extensions needed to handle the self/other distinction.     

Atttudes and behavior: Implications of attitudes toward behavioral alternatives

The relationship between attitudes and behavior was considered. An attitudinal model of behavioral alternatives was presented and its applied and theoretical implications explicated. Three investigations were reported that tested the initial viability of the approach. Support for the model was observed in all three investigations.     

Clogs in the bogus pipeline: Demand characteristics and social desirability

Jones and Sigall (1971) have advocated the use of a pseudophysiological monitoring device (the bogus pipeline) as a procedure to measure the “true” feelings of experimental subjects. A comparison of the bogus pipeline and a paper-and-pencil scale as measures of attraction indicated that the monitoring device is affected by experimenter demands among high social desirability (SD) subjects (p < .03) while the simple rating scale is not. Attraction to a stranger was determined solely by attitude similarity for high SD subjects using the paper-and-pencil measure and for low SD subjects in both measurement conditions. Use of the bogus pipeline in the typical attraction experiment thus would seem to be contraindicated. These results were discussed with respect to Ostrom's (1973) criteria of relative sensitivity and functional comparability of measurement techniques.     

Attraction and altruism: With a little help from my friends

The present experiment was designed to determine whether the reinforcement value of an altruistic response is a function of attraction toward the victim and/or the affective state of the subject. Subjects (N = 95) received positive or negative evaluations from a victim or from a bystander and subsequently performed an altruistic response which terminated shock delivery to a victim on a series of 14 trials. Analyses of variance indicated that the acquisition of an altruistic response was greatest when attraction toward the victim was most positive (p < .0001) and nonexistent when attraction toward the victim was least positive. The results were consistent with the proposition that attraction rather than affect mediates altruistic reinforcement. Those subjects receiving negative evaluations from the victim failed to acquire the altruistic response, suggesting that failure to help may function as a form of passive aggression.     

Attributing causes for one's own performance: The effects of sex,norms, and outcome

Two experiments were conducted to determine the effect of sex of subject, stated sex linkage of task, and task outcome on causal attributions of an actor's performance. Results from both studies showed that: (1) males evaluate their performance more favorably than do females, despite equivalent objective scores; (2) males claim greater ability than do females following task performance; and (3) females are more prone to use luck to explain performance. The evidence also suggests that the difference between males and females in performance evaluation and self-attribution occurs most strongly in response to failure and on masculine tasks. The results are interpreted in terms of a general expectancy model.     

A Plumber's friend in need is a Plumber's friend indeed

In response to the critique of Gaes, Quigley-Fernandez, and Tedeschi (Journal of Research in Personality, 1978, 12, 189–192) it was acknowledged that the cell Ns were incorrect as originally reported, and the weakness of a postexperimental division of subjects was reaffirmed. Emphasis was placed on the comparability of a simple rating scale and an elaborate bogus pipeline in measuring attraction. The need for determining the way in which the bogus pipeline functions prior to its uncritical adoption in any given experimental situation was stressed as a point of agreement.     

The effects of prior task experience in the modeling situation

An investigation was made into the effects of observers' previous experience with the experimental task on acquisition and subsequent performance of modeled task behavior. The task was socially neutral and the subjects were second grade boys and girls. Recall of modeled actions increased with prior experience, indicating greater acquisition. This finding supports Bandura's (1973) assertion that task familiarity may enhance attentiveness to the model. Contrary to previous research, performance of imitation did not decrease with experience. The present performance results are possibly due to the ambiguity of the preexperience and novelty of the experimental task.     

Situation-specific variables as determinants of perceived environmental aesthetic quality and perceived crowdedness

It was hypothesized that relevant situation-specific variables may act along with objective physical conditions to determine environmental perception, and that the exclusive use of the physical level of an environmental stimulus to predict behavior may, therefore, be inadequate. A 2 × 4 between-subjects design was employed in which an attitudinally similar or dissimilar confederate interacted with a subject at one of four distances. As hypothesized, subjects who interacted with a similar confederate judged the environment to be of higher aesthetic quality, perceived themselves to be less crowded, and felt affectively more positive than subjects who interacted with a dissimilar other. The results were also interpreted as supporting the utility of the Byrne-Clore (1970) reinforcementaffect model of evaluative responses as a means of predicting environmental perception and the behavioral response to environmental stimuli.