A study of the greater male variability hypothesis in creative thinking in Mainland China: Male superiority exists

This study tested the greater male variability hypothesis in creative thinking with a Chinese student sample in Mainland China. The Test for Creative Thinking-Drawing Production (TCT-DP) was administered to 627 Chinese adolescent boys (n = 332) and girls (n = 295). Results using the boy/girl variance ratio (VR) generally supported the hypothesis that boys have greater variability than girls in creativity test performance. However, results using the boy/girl ratios from different regions of the creativity score distribution revealed a pattern of male superiority. While boys significantly outnumbered girls in the higher extremes, girls tended to outnumber boys in the central region and the lower extremes. Results from an analysis of the means lent further support to the findings of male superiority. Plausible explanations for greater male variability and male superiority in Mainland China are proposed. The theoretical and practical implications of the findings are discussed.     

The role of temporal context and expectancy in resource allocation to and perception of rapid serial events

The perception of target events presented in a rapid stream of non-targets is impaired for early target positions, but then gradually improves, a phenomenon known as attentional awakening. This phenomenon has been associated with better resource allocation. It is unclear though whether improved resource allocation and attentional awakening are a consequence of the temporal context, that is, the position of the target event in the stimulus stream, or are due to a simple expectancy or foreperiod effect. Expectancy is an alternative explanation of attentional awakening because it depends on the a posteriori probabilities, which will increase with target position when all target positions are equally likely. To differentiate between the expectancy and the temporal context account the a priori (objective) probability of target position was defined such that the a posteriori probability would be high for early and late, and low for intermediate target positions. EEG was collected and the P3 ERP evoked by target events was derived as an indicator of resource allocation. A robust attentional awakening effect was observed. The relationships between measures of performance and P3 amplitude, and respectively target position, a priori, and a posteriori probability were analyzed. Results showed that in contrast to target position, a posteriori probability had little impact on performance and did not moderate the association between P3 amplitude and performance. Results also indicated that in spite of the evident role of target position on resource allocation and the perception of target events in rapid stimulus streams, target position is likely not the only variable these are affected by. Nevertheless, the findings of the present study suggest that whereas the temporal context of a rapid serial event is a key player for resource allocation to and perception of the event, expectancy seems of very little consequence.     

The influence of external stimulation on airflow detection by children with asthma

Abstract

The relevance and significance of the concept of a ‘competition of cues’ for the understanding of symptom perception in childhood asthma was investigated during detection of externally applied resistive loads on breathing. The concept predicts that subjects would respond less frequently and less accurately during external stimulation. The sample consisted of 36 children with and 36 without asthma, aged 7-18 years. Detection of airflow was measured in a neutral and in an external stimulation condition. The children breathed through a facemask and responded to changes in airflow by pressing a button. The stimulus presented and withdrawn was analogous to a decrease in lung function (Forced Expiratory Volume in one second) of 39%. Accuracy of detection of airflow was defined as correct minus false positive responses to load stimuli.

The results showed that children with and without asthma responded significantly less frequently during external stimulation than in the neutral condition. However, the accuracy of detection among non-asthmatics was not affected by external stimulation. Children with asthma responded significantly more accurately during external stimulation. The results are discussed in the light of children's accuracy to perceive actual airways obstruction.     

Active suppression of distractors that match the contents of visual working memory

The biased competition theory proposes that items matching the contents of visual working memory will automatically have an advantage in the competition for attention. However, evidence for an automatic effect has been mixed, perhaps because the memory-driven attentional bias can be overcome by top-down suppression. To test this hypothesis, the Pd component of the event-related potential waveform was used as a marker of attentional suppression. While observers maintained a colour in working memory, task-irrelevant probe arrays were presented that contained an item matching the colour being held in memory. We found that the memory-matching probe elicited a Pd component, indicating that it was being actively suppressed. This result suggests that sensory inputs matching the information being held in visual working memory are automatically detected and generate an “attend-to-me” signal, but this signal can be overridden by an active suppression mechanism to prevent the actual capture of attention.     

‘Rehabilitation' in schizophrenia: A psychoanalytic viewpoint

This is a study which investigates some difficulties people with schizophrenia have in the long term; looks at some of the psychoanalytical theories concerning the difficulties they have in keeping an internal caring maternal imago; the consequences for them; how the NHS can help by providing an external caring maternal imago.     

Individual differences in children's understanding of social evaluation concerns

Recent research suggests that children's understanding of self‐presentational behaviour—behaviour designed to shape social evaluation—is a function of both cognitive and motivational variables. Furthermore, the motivational factors involved are likely to reflect individual differences in the salience of concerns about social evaluation. The present research represents a first effort to determine whether measures of such differences are indeed associated with the understanding of self‐presentational behaviour. In a first experiment, a teacher rating measure of self‐monitoring was found to be positively associated with the understanding of self‐presentational motives. In a second experiment, a more narrowly specified self‐report measure of public self‐consciousness was found to have a similar association with the understanding of self‐presentation, with no such association found for private self‐consciousness. These preliminary results make it clear that our formulations of development in social cognition must indeed include a consideration of individual differences in motivational orientations. Copyright © 2002 John Wiley & Sons, Ltd.     

Response persistence under ratio and interval reinforcement schedules

In Experiment 1, rats were exposed to progressive-ratio schedules of food reinforcement while other rats were exposed simultaneously to yoked-interval schedules that arranged equivalent interreinforcer intervals but required only a single response at the end of the interval for food delivery. In Experiment 2, a within-subject yoked-control procedure was employed in which pigeons were exposed to alternating sessions (one per day) of progressive-ratio schedules and yoked-interval schedules as described above. In both experiments, responding under the yoked-interval schedule persisted beyond the point at which responding under the progressive-ratio schedule had ceased. The progressive-ratio schedules controlled break-and-run distributions, and the yoked-interval schedules controlled more even distributions of responses in time. Response rates decreased and postreinforcement pauses increased over time within individual sessions under both schedules. The results suggest that responding maintained by interval schedules is more persistent than that maintained by ratio schedules. The limitations and implications of this conclusion are discussed in the context of other investigations of response strength and behavioral momentum.     

The effects of stimulus movement and attention on peripheral stimulus localization by 8- to 26-week-old infants

This study examined the effect of stimulus movement on localization probability and latency during attention and inattention. Forty infants, 10 each at 8, 14, 20, and 26 weeks of age were presented with a central stimulus. Then, a peripheral stimulus was presented (static or dynamic checkerboard). Stimulus movement did not affect localization probability. Infants localized the dynamic peripheral stimulus more quickly than the static peripheral stimulus when there was no focal stimulus. Focal stimulus attention attenuated this difference in localization latency between static and dynamic stimuli. Signal detection analysis showed that sensitivity to the peripheral stimulus increased over this age range along with a decrease in the bias against responding. The effects of attention were on response bias rather than stimulus sensitivity. These results imply attention affected the localization response to the peripheral stimulus but did not affect the sensitivity of the sensory and perceptual pathways to peripheral stimuli.     

Getting along or ahead: Effects of gender identity threat on communal and agentic self‐presentations

When faced with a threat to gender identity, people may try to restore their gender status by acting in a more gender‐typical manner. The present research investigated effects of gender identity threat on self‐presentations of agentic and communal traits in a Swedish and an Argentine sample (N = 242). Under threat (vs. affirmation), Swedish women deemphasized agentic traits (d [95% CI] = ?0.41 [?0.93, 0.11]), Argentine women increased their emphasis on communal traits (d = 0.44 [?0.08, 0.97]), and Argentine men increased their emphasis on agentic traits (d = 0.49 [?0.03, 1.01]). However, Swedish men did not appear to be affected by the threat regarding agentic (d = 0.04 [?0.47, 0.55]) or communal traits (d = 0.23 [?0.29, 0.74]). The findings are to be considered tentative. Implications for identity threat research are discussed.