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Alex O. Holcombe Anne Treisman Nancy Kanwisher 《Attention, perception & psychophysics》2001,63(2):322-329
The relative order of an auditory sequence can be more difficult to apprehend when it is presented repeatedly without pause (i.e., cycling) than when it is presented only once (Warren, Obusek, Farmer, & Warren, 1969). We find that this phenomenon, referred to as themidstream order deficit (MOD), can also occur with visual stimuli. The stimuli need not form separate perceptual “streams,” and the effect can occur with presentation rates as slow as five items per second, even though the identification of individual letters is very accurate at this rate. However, if the first item of the sequence is visually very distinct from the preceding items, relative order reports can be as accurate in the cycling condition as in the single-presentation condition. Our results suggest that the MOD is not due to masking, attentional blink, repetition blindness, Reeves and Sperling’s (1986) order illusion, memory limitations, or decision criteria. The MOD may reflect an attentional cost to the initiation of order encoding, which is distinct from the allocation of attention is required in order to detect and identify individual items. To initiate order encoding successfully, one’s attention must be set for, or captured by, an initial salient event. 相似文献
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Sulik MJ Eisenberg N Lemery-Chalfant K Spinrad TL Silva KM Eggum ND Betkowski JA Kupfer A Smith CL Gaertner B Stover DA Verrelli BC 《Developmental psychology》2012,48(3):740-754
The LPR and STin2 polymorphisms of the serotonin transporter gene (SLC6A4) were combined into haplotypes that, together with quality of maternal parenting, were used to predict initial levels and linear change in children's (N = 138) noncompliance and aggression from age 18-54 months. Quality of mothers' parenting behavior was observed when children were 18 months old, and nonparental caregivers' reports of noncompliance and aggression were collected annually from 18 to 54 months of age. Quality of early parenting was negatively related to the slope of noncompliance only for children with the LPR-S/STin2-10 haplotype and to 18-month noncompliance only for children with haplotypes that did not include LPR-S. The findings support the notion that SLC6A4 haplotypes index differential susceptibility to variability in parenting quality, with certain haplotypes showing greater reactivity to both supportive and unsupportive environments. These different genetic backgrounds likely reflect an evolutionary response to variation in the parenting environment. 相似文献
977.
The present investigation evaluated the effectiveness of category tact and match‐to‐sample instruction in facilitating the emergence of intraverbal responses (i.e., naming several items belonging to a specific category) for 2 children with autism. Results demonstrated the emergence of untaught responses, suggesting an effective instructional protocol for establishing intraverbal responses without direct instruction. 相似文献
978.
We evaluated the effectiveness of a stimulus pairing observation procedure to facilitate tact and listener relations in preschool children learning a second language. This procedure resulted in the establishment of most listener relations as well as some tact relations. Multiple-exemplar training resulted in the establishment of most of the remaining relations. The implications for the use of these procedures to establish simple vocabulary skills in children are discussed. 相似文献
979.
Williford A Boulton A Noland B Little TD Kärnä A Salmivalli C 《Journal of abnormal child psychology》2012,40(2):289-300
The present study investigated the effects of the KiVa antibullying program on students’ anxiety, depression, and perception
of peers in Grades 4–6. Furthermore, it was investigated whether reductions in peer-reported victimization predicted changes
in these outcome variables. The study participants included 7,741 students from 78 schools who were randomly assigned to either
intervention or control condition, and the program effects were tested with structural equation modeling. A cross-lagged panel
model suggested that the KiVa program is effective for reducing students’ internalizing problems and improving their peer-group
perceptions. Finally, changes in anxiety, depression, and positive peer perceptions were found to be predicted by reductions
in victimization. Implications of the findings and future directions for research are discussed. 相似文献
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