A hierarchy of information sources for inferring emotional reactions

The ability of children and adults to infer emotional reactions from different sources of information was investigated. Preschoolers (mean age, 4–9), second graders (mean age, 4–9), and college students were asked to infer emotional reactions from verbally presented stories in which sources of information occurred either singly, in conflict, or in congruence. The sources investigated were situational (the protagonist's social or physical situation), normative (the dispositions of a group to which the protagonist belongs), and personal (the dispositions of the protagonist in particular). Subjects indicated the protagonist's emotional reaction to an event in the story by choosing one of three facial expressions, representing happy, upset, and afraid. A hierarchy of sources for making emotional inferences was found at all three grade levels: personal information was preferred over normative information, and both were dominant over situational information. The relevance of present methods and findings to the study of the development of “empathy” is discussed.     

Developmental differences in cognitive scanning and encoding of visual information

Report accuracy of horizontally arranged letter sequences was measured for second-grade children and adults using a tachistoscopic single report procedure. Results indicated age differences in both the amount of information encoded out of visual sensory store and in the magnitude of left-right visual field differences. However, large age differences in amount of encoded information were also present under conditions which served to reduce left-right visual-field asymmetries in report accuracy. These findings are discussed in terms of their implications for using a left-to-right cognitive trace scanning explanation to account for age differences in encoding efficiency.     

The effect of context on the structure of categories

Three experiments examined the effect of context on the representativeness ordering of exemplars of a category. Experiments 1 and 2 employed an online reading time paradigm to examine the effect of context on the time it takes to establish an anaphoric reference between an exemplar and a category term. Experiment 1 demonstrated that context can change the relation between a category term and an exemplar at the time of comprehension. Experiment 2 showed that category terms presented in context generate graded goodness-of-example distributions of exemplars that are different from the distributions generated in the absence of explicit context. These distributions cannot be derived by assuming that the exemplar most strongly suggested by the context serves as the category representation. Experiment 3 employed a membership verification paradigm. Response time was found to be a function of degree of relatedness to the contextdependent category representation. Typicality, as determined in the absence of explicit context, had no effect on decision time. Several models, including some extensions of current semantic memory theories, are developed to account for the results of these experiments.     

A sociolinguistic approach to the belief-similarity model of racial attitudes

This study examined the belief-similarity model of prejudice from a sociolinguistic perspective. It was hypothesized that normatively regulated speech styles strongly affect observers' assumptions about the cultural background of the speaker. These linguistically based cultural assumptions were expected to override racial characteristics in controlling intergroup attitudes. Stimulus speech styles were Black English Vernacular (BEV) and Standard English (SE). Speech style was expected to strongly affect prejudicial attitudes, with such effects mediated by assumed cultural similarity. Racial label and speech style were expected to be most salient to ratings of “intimate” behavior and among more ethnocentric subjects. Subjects heard taped statements in either BEV or SE, ostensibly delivered by a White or a Black speaker. Subjects rated the speaker on perceived cultural similarity, general evaluation, perceived aggressiveness, and social distance. Speech style had a substantial main effect on each of these variables. Racial label had a marginally significant effect on evaluation, and interacted with ethnocentrism for perceived similarity and social distance. All effects of speech, race, and ethnocentrism were substantially attenuated or eliminated when similarity was used as a covariate. Thus, speech style had substantial effects on prejudice, as did race within more ethnocentric subjects. Both effects were largely mediated by assumed cultural similarity.     

Measurement of fear of the conditioned stimulus and of situational cues at several stages of two-way avoidance learning

In Experiment 1, subjects were trained in a signaled two-way avoidance task to a criterion of either 2, 10, or 20 consecutive avoidance responses. Subsequently, they were allowed to escape, in the absence of shock, from one compartment of the avoidance apparatus to an adjacent safe box. For one group at each criterion level, the conditioned stimulus (CS) was presented during these trials; for another group, it was not (NCS). The rate and level of learning of the escape response were taken to reflect the amount of fear of the CS and situational cues present at the end of avoidance training for the CS groups and the amount of fear of the situational cues alone for the NCS groups. Under the CS condition, all groups learned equally well; under the NCS condition, learning occurred only in the two-criterion group. This pattern of results suggests that, as avoidance training continued, differential reinforcement led to the formation of a discrimination so that a substantial amount of fear was elicited by the CS plus situational cues but only a minimal amount by the situational cues alone. Such a loss of fear of situational cues would, according to effective reinforcement theory, serve to maintain or even increase reinforcement as avoidance training progressed. The results of Experiment 2, by ruling out some alternative explanations, supported the interpretation that the learning of the instrumental escape response in the first experiment was based on prior fear conditioning.     

Kinematic information feedback for learning a rapid arm movement

The experiments reported examine the notion that knowledge of results (KR) about the outcome of a response does not provide the necessary information for optimizing performance in many skilled activities. The effect of traditional KR was contrasted with various kinematic feedback parameters in the acquisition of a single degree of freedom response requiring the minimization of movement time. Experiment 1 showed that the presentation of discrete kinematic information feedback (peak accelaration, time to peak accelaration, and velocity at the target location) did not facilitate performance over movement-time KR. Experiment 2 revealed that presentation of a computer generated velocity-time representation of the movement as terminal information feedback improved performance over movement-time KR. This facilitation occured even without knowledge of the kinematics for optimal performance. The findings suggest that the task criterion specifies the appropriate information feedback for skill learning in that the information feedback must match the constraints imposed upon response output.     

Sex differences in symbol-digit substitution and speeded matching

Sex differences in digit-symbol substitution and speeded matching tests have not been adequately explained. Recent attempts have suggested the importance of the comparison processes, associative memory, and a possible difference in processing verbal and spatial information. Four experiments, two on speeded matching and two on symbol-digit substitution, supported the hypothesis that both tests involve comparison processes and that the sex difference in these processes depends upon the type of information. A female advantage is clearest with verbal material on both matching and symbol-digit substitution tasks. A male advantage was found on a symbol-digit substitution test only after training on the symbol-digit associations and when symbol discrimination involved spatial orientation. These results question previous interpretations of the clerical speed and symbol-digit substitution tests in terms of perceptual encoding speed, attentional shifts or sex differences in motor skills.     

Sex-role self-concept and persistence in a traditional vs nontraditional college major for women

This article reports a 3-year follow-up study of a sample of women engineering and home economics majors who were previously studied as freshmen. It was hypothesized that persistence in the two curricula would be related to sex roles, with feminine-typed women more likely to leave engineering and masculine-typed women more likely to leave home economics. The findings did not generally support this hypothesis, however. Women in the two majors who persisted were not found to differ significantly from women who changed majors or dropped out on either sex roles or on ratings given as freshmen of their satisfaction with and certainty of college major. Persisters in engineering had higher college entrance SAT math scores than changers or dropouts. Those who changed majors from home economics tended to go into less traditional fields than home economics. Nearly all of the women who changed from engineering chose another nontraditional or male-dominated field as their second major.     

Multiple meanings,number of related meanings,frequency of occurrence,and the lexicon

A series of experiments was conducted examining lexical access of words with multiple meanings. Words with many meanings were accessed faster than words with few meanings. This effect was obtained independently of word frequency. Furthermore, while words may have several etymological derivations, the number of derivations does not affect access. Finally, among words with an equal number of derivations and an equal number of meanings, those whose meanings tend to be associated with only one derivation are also accessed faster. The relation between number of meanings and word frequency is discussed, especially with respect to the role number of meanings may have played in other research.