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121.
Fast color grouping and slow color inhibition: evidence for distinct temporal windows for separate processes in preview search 总被引:1,自引:0,他引:1
Braithwaite JJ Humphreys GW Hulleman J Watson DG 《Journal of experimental psychology. Human perception and performance》2007,33(3):503-517
The authors report 4 experiments that examined color grouping and negative carryover effects in preview search via a probe detection task (J. J. Braithwaite, G. W. Humphreys, & J. Hodsoll, 2003). In Experiment 1, there was evidence of a negative color carryover from the preview to new items, using both search and probe detection measures. There was also a negative bias against probes on old items that carried the majority color in the preview. With a short preview duration (150 ms) carryover effects to new items were greatly reduced, but probe detection remained biased against the majority color in the old items. Experiments 2 and 4 showed that the color bias effects on old items could be reduced when these items had to be prioritized relative to being ignored. Experiment 3 tested and rejected the idea that variations in the probability of whether minority or majority colors were probed were crucial. These results show that the time course of color carryover effects can be separated from effects of early color grouping in the preview display: Color grouping is fast, and inhibitory color carryover effects are slow. 相似文献
122.
123.
The Five-Factor Personality Inventory (FFPI) assesses a person's position on the (Dutch) psycholexically based Big Five factors: Extraversion, Agreeableness, Conscientiousness, Emotional Stability, and Autonomy. FFPI factor scores are reliable and valid if ratings are made by adults. The present study yields preliminary evidence of whether young adolescents provide reliable and valid self-ratings on this instrument or whether this depends on their cognitive ability level. The sample consisted of a large and representative cohort of youngsters with a mean age of 13 years. The adult structure of the FFPI was generally well replicated, across all ability levels represented in the study. The findings further suggest that young adolescents' factor scores are construct-valid and sufficiently reliable to be used in (group) research settings. However, for reports on individual profiles and decision making, an adolescent's cognitive ability level would need to be rather high. Even then, measuring Autonomy seems challenging. 相似文献
124.
Domain-specific contributions of working memory (WM), short-term memory (STM), and executive functioning (EF) to individual differences in intelligence were analysed using a latent variable approach. A sample of 345 participants completed a battery of 24 tests tapping the constructs of interests as comprehensively as possible. Visuospatial and verbal STM and WM tasks were administered along with three subcomponents of EF, namely inhibition, planning, and shifting. Intelligence was assessed by non-verbal/abstract/fluid intelligence (Gf) and verbal/crystallised intelligence (Gc) standardised tests. Structural equation modelling results show that EF is the main predictor of Gf, whereas verbal STM is the main predictor of Gc. Storage and processing providing different contributions to the prediction of Gf and Gc supports the view that both short-term storage and executive functioning account for the relationship between WM and intelligence. This main conclusion stresses the importance of acknowledging core cognitive constructs as being hierarchical systems with general and domain-specific mechanisms. 相似文献
125.
Martijn A. de Lange Eline van der Haar Johan C. Karremans 《Journal of applied social psychology》2012,42(12):3114-3125
Increasing police patrolling is often assumed to be an effective means of enhancing general feelings of safety. This relationship between perceiving police and feelings of safety was tested by having police officers patrol during a field experiment (Study 1) and by manipulating the police presence in pictures of neighborhoods in a laboratory experiment (Study 2). Both studies show that in environments that are generally considered to be safe, feelings of safety are not increased by police presence. Moreover, men feel less safe when police are present compared with when police are absent. The results are discussed in terms of possible underlying mechanisms and implications for police patrolling. 相似文献
126.
van Nooten J Oh H Pierce B Koning FJ Jadad AR 《The journal of pastoral care & counseling : JPCC》2006,60(4):387-394
A systematic review was undertaken of the literature on the use of the Internet and other information and communication technologies (ICT's) in the provision and support of religious and spiritual care in healthcare. Indexes such as Medline, PsychoINFO and Proquest Religion were searched. The review found little systematic study of the effectiveness of the Internet and other ICT's in religious and spiritual care. It is believed that the results of this review provide a basis for promise spiri care in the further explora of the potential and of ICT's for tual healthcare. 相似文献
127.
It has been argued that search performance under preview conditions relies on automatic capture by luminance onsets (Donk & Theeuwes, 2001). We present three experiments in which preview search was examined with both isoluminant and nonisoluminant items (e.g., as defined by luminance onsets). Experiment 1 provided evidence against the automatic capture of attention by onsets. Search benefited when onset previews were followed by new onset stimuli, as compared with a full-set baseline matched for the number of new onsets but in which half the distractors appeared simultaneously at isoluminance. Furthermore, both Experiments 1 and 2 established a preview advantage when isoluminant targets followed onset previews, when compared with appropriate full-set baselines. Experiment 3 replicated this result, while showing that the preview benefit was disrupted by dual-task interference. The data indicate that new onsets are not necessary to generate a preview advantage in search. We discuss the data in terms of search's benefiting from active inhibition of old onset-defined stimuli. 相似文献
128.
Carlbring P Nilsson-Ihrfelt E Waara J Kollenstam C Buhrman M Kaldo V Söderberg M Ekselius L Andersson G 《Behaviour research and therapy》2005,43(10):1321-1333
A randomized trial was conducted comparing 10 individual weekly sessions of cognitive behaviour therapy for panic disorder (PD) with or without agoraphobia with a 10-module self-help program on the Internet. After confirming the PD diagnosis with an in-person structured clinical interview (SCID) 49 participants were randomized. Overall, the results suggest that Internet-administered self-help plus minimal therapist contact via e-mail can be equally effective as traditional individual cognitive behaviour therapy. Composite within-group effect sizes were high in both groups, while the between-group effect size was small (Cohen's d=16). One-year follow-up confirmed the results, with a within-group effect size of Cohen's d=0.80 for the Internet group and d=0.93 for the live group. The results from this study generally provide evidence to support the continued use and development of Internet-distributed self-help programs. 相似文献
129.
van Lang ND Ferdinand RF Oldehinkel AJ Ormel J Verhulst FC 《Behaviour research and therapy》2005,43(11):1485-1494
This study investigated the concurrent validity of the DSM-IV scales Anxiety Problems and Affective Problems of the Youth Self-Report (YSR) in a community sample of Dutch young adolescents aged 10-12 years. We first examined the extent to which the YSR/DSM-IV scales reflect symptoms of DSM-IV anxiety disorders and DSM-IV Major Depressive Disorder, assessed with the Revised Child Anxiety and Depression Scale (RCADS). Second, we examined whether the association between the YSR/DSM-IV scales and the RCADS scales was stronger than the association between the empirically derived YSR narrow-band scales Anxious/Depressed and Withdrawn and the same RCADS scales. Results showed that the YSR/DSM-IV scale Affective Problems had a stronger association with symptoms of DSM-IV Major Depressive Disorder than the YSR narrow-band scales Withdrawn and Anxious/Depressed. However, the YSR/DSM-IV scale Anxiety Problems had a weaker association with symptoms of DSM-IV anxiety disorders, compared to the YSR narrow-band scale Anxious/Depressed. It was concluded that the construction of the DSM-IV scales improved the correspondence with DSM-IV Major Depressive Disorder, but not with DSM-IV anxiety disorders. 相似文献
130.
We report data from a discrimination task in which participants had to decide whether a single-item display was either vertically symmetric or asymmetric. This decision was found to be easier when items with a top bottom polarity were placed in an orientation where the wide end was the base of the stimulus and the narrow end was the top. The difference in reaction times between this orientation and its inversion was about 10 ms. We suggest that top and bottom labels are assigned to stimuli during the detection of bilateral symmetry. 相似文献