Converging evidence for the functional significance of imagery in problem solving

Two kinds of explanations have been offered for the process by which three-term series problems are solved, one in terms of linguistic principles and the other in terms of visual-spatial imagery. Two experiments are reported in which three different classes of operations are brought to bear on the problem: (1) Manipulation of stimulus attributes (characteristics of problems), (2) manipulation of variables that selectively encourage or inhibit the use of imagery (facilitating instructions; the suppression of visualization by reading), and (3) measurement of relevant individual differences (spatial-reasoning ability). All of the results indicate that imagery plays a functional but not a necessary role in the solution of three-term series problems; it is suggested that imaginal representation is functional because it reduces the load on memory. An adequate explanation of problem-solving will have to address certain general issues, such as the diversity of forms of cognitive representation and differences within and between individuals in the choice of problem-solving strategies.     

The social play of two behaviorally disordered preschool children during four activities

The effect of contingent teacher attention on the social play of two behaviorally disordered preschool children was investigated. Using a multiple baseline design with reversal conditions, social play was measured on four activities: pegs and pegboard, athletic ball, blocks, and water pail. Baseline data indicated considerable variability in the amount of social play across the four activities. The initiation of the experimental contingency produced a dramatic increase in percentage of time in which the subjects engaged in social play. The implications of these results for the remediation of isolate behavior in young children with multiple behavioral deficits are discussed.     

Sex-role traditionalism and fear of success

In the present study 33 adult women completed Horner's measure of fear of success, filled out a questionnaire that tapped sex-role traditionalism and negative attitudes toward the women's liberation movement, and answered questions concerning their political beliefs and educational backgrounds. In line with some of Horner's contentions, it was found that fear of success is more common among nontraditional women — those who favor the women's movement, have more education, and hold liberal or radical political beliefs. Fear of success is not a correlate of traditional femininity but rather a sign of conflict experienced by ambitious, nontraditional women. Implications and further questions are discussed.     

Stimulus probability and prediction outcome as determinants of choice reaction time: Some procedural considerations

Effects of stimulus probability and prediction outcome on two-choice reaction speed (CRS) were determined when a frequency imbalance was reversed half-way through 300 samples of a 70/30 stimulus distribution and when the same 70/30 distribution was sampled for 1200 trials. Prior to each presentation Ss made a prediction; following each presentation Ss identified the stimulus by pressing a right-hand or left-hand trigger. CRS was faster to correctly predicted stimuli, and faster to the more probable stimulus. Ss who were informed of the frequency imbalance reacted significantly faster than Ss who were not. Both practice and boredom effects were demonstrated by using the extended number of trials. CRS was faster during the second session of 300 trials than during the first; after two sessions, CRS was slower during the second half of two additional sessions.     

The actor's behavioral history,his current role,and the divergence between actor and observer responsibility attributions

The actor's behavioral (High or Low) and role (High, Medium, or Low) respectability were varied in an actor-observer attribution study. A scenario described the actor's background combination of behavioral and role respectability and an event in which the actor participated. Subjects assigned actor and situational responsibilities to the event from their own viewpoint and from their perceptions of the actor's viewpoint. Subjects' awareness of the attributional divergence between actors and observers (Jones, E. E. & Nisbett, R. E. In Attribution: Perceiving the causes of behavior. New York: General Learning Press, 1971) and the information (public versus private) utilized by each were reflected in the results.     

BIRTH ORDER OF MEDICAL STUDENTS AND THE OCCUPATIONAL AMBITIONS OF THEIR PARENTS

Une étude antérieure, faite aux Etats-Unis, a montré que les étudiants en médecine sont en général les aînés de leur famille; cette tendance est spécialement marquée lorsque le père souffre d'un certain déséquilibre dans son statut professionnel, en ce sens que celui-ci est inférieur à ce à quoi il pouvait aspirer de par sa formation. Cette étude a été refaite et étendue en Suède; les conclusions sont les suivantes: (1) Les étudiants en médecine, filies et garçons sont en général les aînés de leur famille. (2) Cette tendance est plus marquée chez les filies dont le père a un statut déséquilibré. (3) Pour les étudiants des deux sexes, la proportion d'aînés est spécialement forte chez ceux qui relatent que leur père a été frustré dans ses aspirations professionnelles. On pourrait done penser que le fils ainé prend son père comme modèle de rôle professionnel quand le père est satisfait de son travail, tandis que, lorsque le père est frustré, le fils prend pour modèle le rôle que le pére n'a pas réussi à atteindre. (4) Conformément aux prédictions basées sur la primogéniture, les effets du rang de naissance, pour les sujets masculins, sont plus marqués dans les zones rurales que dans les villes, mais cette différence ne joue pas pour les filies. Plusieurs problèmes méthodologiques afférant aux recherches sur le rang de naissance sont discutés ici.     

Test-retest reliability and concurrent validity of the Morrow Assessment of Nausea and Emesis (MANE) for the assessment of cancer chemotherapy-related nausea and vomiting

The present study evaluated the concurrent validity of two assessment approaches for the measurement of cancer chemotherapy-related nausea and vomiting. The results indicated that the concurrent validity between the Morrow Assessment of Nausea and Emesis (MANE; Morrow, 1984b) and continuous self-monitoring and the reliability on the MANE were moderate. The heterotrait-monomethod and heterotrait-heteromethod matrices demonstrated moderate correlations among the frequency, severity, and duration of anticipatory nausea and vomiting as well as high correlations among the frequency, severity, and duration of posttreatment nausea and vomiting. Additionally, the heterotrait-monomethod matrices show a number of correlations above chance between anticipatory and posttreatment symptoms. The results are discussed in light of future research endeavors.This research was supported in part by Research Grant IN-150 from the American Cancer Society.     

Effects of type of responding on memory/visual search: Responding just “yes” or just “no” can lead to inflexible performance

Interactions of stimulus consistency and type of responding were examined during perceptual learning. Subjects performed hybrid memory-visual search tasks over extended consistent and varied mapping practice. Response conditions required subjects to respond to both the presence and absence of a target, only when a target was present or only when a target was not present. After training, the subjects were transferred to a different response condition. The results indicate that: (1) performance on search tasks with stimuli that are variably mapped show no qualitative changes attributable to manipulation of response format; (2) improvement due to consistent mapping (CM) practice is attenuated in the no-only response condition; (3) yes-only CM training attenuates the subjects ability to transfer to no-only responding; and (4) yes/no CM training leads to the greatest improvement and transfer when compared with other responding conditions. The practice and transfer data support and extend previous research investigating effects of response set in memory/visual search and help to delineate factors that facilitate or inhibit reduction of load effects in memory and visual search.     

To do no harm: A Buddhist view on animal use in research

The issue of using animals for research raises many concerns for Buddhists. Buddhism recognizes that all sentient life shares the same fundamental consciousness but also recognizes a difference in the ability of a species to express that basic, underlying consciousness.Ahimsa or no-harm has been a guiding principle of Buddhist ethics which applies to nonhuman species as well as humans. Conflict arises when available methods for removing some forms of human suffering are dependent upon inflicting suffering on animals. This paper explores several resolutions to the conflict, with the resulting opinion that Buddhism will condone some forms of animal research.