Semantic memory verification of binary statements by children at three academic levels

Ninety-six binary statements were administered to 120 children randomly selected from three academic levels. The children were to respond TRUE or FALSE to each statement. Error count and latency for correct responses were used as measures of performance. The Constituent Comparison Model (Carpenter, P., & Just, M. A., Psychological Review, 1975, 82, 45–73), which postulates that verification latency will increase linearly with a linear increase in the number of hypothesized constituent comparisons, accounts quite well for the results obtained in this study. Furthermore, the results suggest an increasing efficiency in semantic memory verification across the three academic levels as reflected by a decrease in variability of performance, a decrease in the time required to read and encode sentences, and a decrease in the time required per constituent comparison.     

Comprehending homographs in aphasia

This study assessed 13 aphasic subjects' knowledge of the multiple meanings of homographs. The results indicated that the various meanings were less available to aphasic subjects than to normal subjects. In addition, specific meanings became less available as they became less typical although the number of meanings associated with a homograph did not influence performance. Aphasia type also did not influence performance. Performance on the experimental test was significantly correlated with auditory comprehension level and picture naming ability. The results were related to recent findings on semantic organization in aphasia.     

The effects of two stressors on state anxiety for students who differ in trait anxiety

The role of individual differences in speech trait anxiety as they related to the magnitude of A-State responses in two stressful situations was examined. Measures of anxiety were obtained before, during, and immediately after Ss gave a speech (ego-stressor) and blew up a balloon until it burst (physical stressor). While exposure to each stressor resulted in dramatic changes in A-State, it was found that differential A-State increases for the high and low speech trait anxious Ss occurred only during the ego-stressor condition. These findings were discussed in terms of Trait-State Anxiety Theory with particular reference to the differential stressful effects of ego and physical stressor on A-State for Ss who differ in A-Trait.     

Lexical search speed in children and adults

The retrieval of words from lexical memory was investigated in kindergartners (Age 6), first-graders (Age 7), third-graders (Age 9), and adults. A lexical decision task with auditorily presented words and nonwords was used, with decision latency as the dependent variable. Multiple regression analyses were used to examine the effects of word frequency, age of word acquisition, and number of word meanings. Results showed that word frequency contributed to decision latency for all age groups, age of word acquisition contributed to all groups but the third-grade subjects, and number of word meanings did not contribute for any age group. Results are discussed in relation to a model of the lexicon in children and adults. It is suggested that factors from the external linguistic community are internalized in the lexicon at an early age.     

Dimensional asymmetry in attributional inference

A number of bipolar personality dimensions were investigated, some of which were selected a priori as being primarily concerned with interpersonal differences in skill (such as unintelligence-intelligence), and others of which were thought to describe differences in preferences (such as indoor-outdoor). Two findings emerged. First, persons at opposite poles of skill dimensions were assumed to possess differential role-taking ability: a skillful person was perceived as relatively more competent at portraying the opposite behavior than was an unskilled person. Second, attributions based upon skillful behavior tend to be less affected by contextual factors than attributions based upon unskillful behavior. An alternative interpretation of the results is discussed.     

From dispositions to behaviors: The flip side of attribution

The implicational relations between dispositional levels and relevant categories of behavior were investigated. Observers were asked questions about the extent to which persons occupying moderate or extreme positions on an attribute (dispositional) continuum (a) attempt various behaviors, (b) are potentially able to perform various behaviors, and (c) generally emit those same behaviors. Three determinants—central tendency, ability, and social desirabliity—offer a reasonable account of the observed implicational relations. First, persons with a given disposition are not expected to emit behavior that is widely discrepant with that disposition. Second, ability considerations dictate that persons with skillful dispositions are believed capable of unskillful behavior, but unskillful persons are thought relatively incapable of skillful behavior. Third, persons are believed to more frequently attempt socially desirable than socially undesirable behavior. Also, persons with moderate dispositions are believed to actually emit socially desirable behavior more frequently than socially undesirable behavior. Finally, the determinants noted above may be of differing relevance for morality, ability, and preference attributes.     

An examination of encoding and retrieval processes in reading disabled children

A choice reaction time experiment was performed in order to assess the information processing characteristics of 12-year-old reading disabled children. Eight reading disabled children were compared to a sample of nondisabled readers. The stimuli consisted of consonants presented in three memory load conditions. A Stimulus Quality manipulation was included in the design in order to assess the encoding process. The results of the research indicated that the rate of encoding differed between disabled and nondisabled readers. In addition, support for the hypothesis that disabled and nondisabled readers do not differ in terms of central processes was also obtained.     

Hemifield independence in the left handed

Tachistoscopically presented arrays containing either a single word or two words in different configurations were given to left- and right-handed subjects. Several measures indicated hemifield, and by implication, hemispheric independence for word recognition was more likely to be found among left- than right-handers. Differences within the left-handed group associated with the presence of family sinistrality and writing posture were also found. Results were discussed with respect to the view that bilateral representation of language frequently occurs in left-handed adults.     

Moral judgment and attitudes toward authority of political resisters

In an exploration of the personal basis of resistance to authority, moral judgment and attitudes toward authority were examined in 183 men and women political resisters, including antinuclear, draft registration, and tax resisters, and anarchists, and compared to 34 liberal and 29 conservative activists. The measures used were the Defining Issues Test and a specially designed attitude survey. As predicted, the differences between resisters and nonresisters were in the realm of cognitive beliefs and values. Strong rejection of political and social authority, a belief that individual conscience is a better guide to conduct than the law, a professed unwillingness to be in positions of authority over others, and a lack of conventional religious affiliation significantly differentiated the resisters from the nonresisters. The resisters also measured high in level of moral judgment but were significantly different only from the conservatives.     

An assessment of cerebral dominance in language-disordered children via a time-sharing paradigm

A time-sharing paradigm was used to assess language lateralization in language-disordered and normal children aged 4–7 years. Several expressive language tasks as well as a vocal, but nonlinguistic, task were administered concurrently with unimanual finger tapping. Dependent variables were percent disruption scores and number of syllables produced per concurrent trial. All language concurrent tasks produced tapping reductions for both hands for both groups. This result contrasts to similar time-sharing studies claiming asymmetrical interference and hence language lateralization in children (N. White & M. Kinsbourne, 1980, Brain and Language, 10, 215–223; J. Obrzut, G. Hynd, A. Obrzut, & J. Leitgeb, 1980, Brain and Language, 11, 181–194). A multiple regression analysis revealed a significant interaction effect differentiating language-disordered from normal children. Normals exhibited a parallel response pattern for speech and tapping (both increased or decreased in rate) under all lateralization conditions. Language-disordered children exhibited an inverse response pattern (e.g., if speech output increased, tapping rate decreased) only under left-hemisphere time-sharing.     

Why we are fairer than others

Subjects wrote lists of either fair or unfair things that they or others did. A pervasive tendency was found for subjects to associate themselves with fair behaviors and others with unfair behaviors. When different subjects rated samples of the written behaviors for fairness and frequency we found that fair behaviors were rated as more frequent than unfair behaviors and self-ascribed behaviors were rated as fairer than behaviors ascribed to others. These findings and others are shown to result from a tendency for subjects to perceive a stronger link between the fairness and frequency of their own behavior than between the fairness and frequency of the behavior of other people. A final analysis showed that the subcategories of unfair behavior that subjects associated with others were different from those associated with themselves.     

The right hemisphere and temporal processing of consonant transition durations: electrophysiological correlates

Auditory evoked responses (AER) were recorded from frontal, temporal, and parietal scalp regions to a series of consonant-vowel syllables which varied in the duration of the consonant transition. Multivariate analyses of the AER waveforms identified one component of the AERs occurring only over right hemisphere regions which discriminated between differences in transition durations. A second component detected over only left hemisphere areas discriminated differences in place of articulation. These data are consistent with previous behavioral and electrophysiological reports that the right hemisphere is sensitive to temporal discriminations.     

Cognitive dissonance and psychotherapy: The role of effort justification in inducing weight loss

The role of effort justification in psychotherapy was examined. It was hypothesized that the effort involved in therapy, plus the conscious decision to undergo that effort, leads to positive therapeutic changes through the reduction of cognitive dissonance. An experiment was conducted in which overweight subjects attempted to lose weight through one of two forms of “effort therapy”. These therapies were bogus in that they were based solely on the expenditure of effort on a series of cognitive tasks that were unrelated to any existing techniques or theory addressing weight loss. One of the therapies called for a high degree of effort while the degree of effort in the second therapy was low. A no-treatment control group was also included. It was predicted that greater weight loss would occur for high-effort than low-effort or control subjects, and that this weight loss would be maintained or increased over time. Results supported these predictions. Over an initial 3-week period, high-effort subjects lost slightly more weight than low-effort subjects or controls. A 6-month follow-up revealed that the effects of effort on weight loss had increased and were highly significant. Reliable differences remained even 1 year after the initial experimental sessions. Possible mechanisms mediating the dissonance effect were discussed, as were several alternative explanations.     

Basic level and superordinate level categorization by autistic, mentally retarded, and normal children

Three experiments designed to test autistic children's nonverbal and verbal categorization abilities are reported in this paper. In the first two experiments, 14 autistic children were compared to 14 retarded and 14 normal children matched on verbal mental age. Their ability to categorize pictures from basic level categories and from biological and artifactual superordinate level categories was assessed using a matching-to-sample procedure. The three groups of subjects were similar in their performance. Basic level categorization was easier than more abstract categorization, and for all three groups, prototypicality played a role in categorizing superordinate level concepts; that is, children in all three groups made more errors categorizing peripheral examples. In the third experiment, a subgroup of 7 autistic children showed evidence that their lexicons were well organized and that they appreciated the meaning relationships among words at the superordinate level. These findings suggest that autistic children do not suffer a specific cognitive deficit in the ability to categorize and form abstract concepts, as has been previously suggested in the literature.     

Voice onset time production and perception in apraxic subjects

This study explored the relationship between the perception and production of voice onset time (VOT) in apraxic subjects. Spectrograms of the words, “bees” and “peas” spoken by apraxic subjects were acoustically analyzed to obtain a measure of VOT. The subjects also identified the initial cognate (“b” or “p”) from synthetically generated speech spanning a voiced to voiceless time continuum. The results suggest that apraxic subjects have production as well as perceptual errors in the voicing feature but no significant relationship was found between the two measures.