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Brett M. Gibson Michelle D. Leichtman Deborah A. Kung Michael J. Simpson 《Learning and motivation》2007,38(1):89-102
Three- to six-year-old children (n = 28) and adults (n = 46) participated in a two-dimensional search task that included geometry and feature conditions. During each of 24 trials, participants watched as a cartoon character hid behind one of three landmarks arranged in a triangle on a computer screen. The landmarks and character then disappeared and reappeared in the same or a new position on the screen. During feature condition trials participants could use unique features of the landmarks to locate the hidden character, while during geometry trials participants could only use the geometry of the triangle. In both conditions, adults’ performance was near ceiling while children’s performance was significantly worse. Children’s performance was worse in the geometry condition than in the feature condition but search accuracy improved with age for both types of information. Findings are considered in the context of the broader literature on spatial cognition and development. 相似文献
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月经周期对女性知觉性侵犯遭遇的影响 总被引:1,自引:0,他引:1
Christine  E.  Garver-Apgar Steven  W.  Gangestad Jeffry  A.  Simpson 《心理学报》2007,39(3):536-540
女性在排卵期遭遇强奸或其它形式的性侵犯可能会受到较大伤害。进化历史中女性遭遇性侵犯的危险不断重现使现代社会女性在排卵期对男性性侵犯的线索较为敏感。本研究旨在探讨女性被试观看男性试图吸引其它女性的录像后如何评价每位男性性侵犯的可能性。研究发现接近排卵期的女性比不处于排卵期的女性更可能认为男性会进行性侵犯。这些发现显示,女性具有特定的知觉进化机制来警惕性侵犯,这种特定的进化机制可能受到月经变化的调节 相似文献
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H. J. Cassaday E. L. Simpson E. A. Gaffan 《The Quarterly Journal of Experimental Psychology Section B: Comparative and Physiological Psychology》2000,53(3):225-238
The 5-hydroxytryptamine 1a (5-HT 1a ) receptor agonist 8-hydroxy-2-(di-n-propylamino) tetralin (8-OH-DPAT; 0.15 mg/kg) impaired rats' rapid visual learning on a computerized maze. This treatment also increased decision time (DT) but the learning impairment was not necessarily a side-effect of slower responding because, in this task, responses made at long DT are more accurate than those at short DT. The selective 5-HT 1a receptor antagonist WAY-100635 (0.3 mg/kg) was itself without effect on accuracy, but was effective in reversing effects of 8-OH-DPAT (on both accuracy and DT). Within problems (i.e., over the 40-60 trials of a single discrimination), performance was reduced by treatment with 8-OH-DPAT at all stages of learning. We conclude that this effect is mediated through the 5-HT 1a receptor site (rather than through some other serotonergic receptor site or non-specific mechanism) as it was reversible by treatment with WAY-100635. Although it could still arise from behaviourally non-specific effects, the performance deficit finds its best account in terms of the psychological processes necessary to visual learning. Its reversal with WAY-100635 offers support to the hypothesis that 5-HT 1a receptor antagonists could improve cognitive function, under conditions of pre-existing impairment due to overactive serotonergic inhibition, as is thought to occur in Alzheimer's disease. 相似文献
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Across a series of four experiments with 3‐ to 4‐year‐olds we demonstrate how cognitive mechanisms supporting noun learning extend to the mapping of actions to objects. In Experiment 1 (n = 61) the demonstration of a novel action led children to select a novel, rather than a familiar object. In Experiment 2 (n = 78) children exhibited long‐term retention of novel action‐object mappings and extended these actions to other category members. In Experiment 3 (n = 60) we showed that children formed an accurate sensorimotor record of the novel action. In Experiment 4 (n = 54) we demonstrate limits on the types of actions mapped to novel objects. Overall these data suggest that certain aspects of noun mapping share common processing with action mapping and support a domain‐general account of word learning. 相似文献