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191.
Four participants constructed face composites, of familiar and unfamiliar targets, using Pro-Fit, with reference images present or from memory. The "mean" of all 4 composites, created by morphing (4-morph) was rated as a better likeness than individual composites on average and was as good as the best individual likeness. When participants attempted to identify targets from line-ups, 4-morphs again performed as well as the best individual composite. In a second experiment, participants familiar with target women attempted to identify composites, and the trend showed better recognition from multiple composites, whether combined or shown together. In a line-up task with unfamiliar participants, 4-morphs produced most correct choices and fewest false positives from target-absent or target-present arrays. These results have practical implications for the way evidence from different witnesses is used in police investigations. 相似文献
192.
Beckett C Maughan B Rutter M Castle J Colvert E Groothues C Hawkins A Kreppner J O'Connor TG Stevens S Sonuga-Barke EJ 《Journal of abnormal child psychology》2007,35(6):1063-1073
The relationship between severe early institutional deprivation and scholastic attainment at age 11 in 127 children (68 girls
and 59 boys) adopted from institutions in Romania was compared to the attainment of 49 children (17 girls and 32 boys) adopted
within the UK from a non-institutional background. Overall, children adopted from Romania had significantly lower attainment
scores than those adopted within the UK; the children within the Romanian sample who had spent 6 months or more in an institution
had significantly lower attainment scores than those who had spent less than 6 months in an institution, but there was no
additional risk of low attainment associated with longer institutional care after 6 months. The lower scholastic attainment
in the children adopted from Romanian institutions, as compared with domestic adoptees, was mediated by IQ, and to a lesser
degree, inattention/overactivity. When these factors were taken into account, only small between-group differences in attainment
remained. 相似文献
193.
Hamilton DA Akers KG Weisend MP Sutherland RJ 《Journal of experimental psychology. Animal behavior processes》2007,33(2):100-114
The present study compared the relative influence of location and direction on navigation in the Morris water task. Rats were trained with a fixed hidden or cued platform, and probe trials were conducted with the pool repositioned such that the absolute spatial location of the platform was centered in the opposite quadrant of the pool. Rather than swimming to the platform location, rats swam in the direction that was reinforced during training, resulting in navigation to the relative location of the platform in the pool and search at the appropriate distance from the pool wall. Pool relocation tests revealed disruptions in cued navigation if the cued platform remained at the absolute location, whereas no disruption was observed if the platform remained at the relative location (same direction). The results indicate that direction holds greater influence than does location and further demonstrate that this observation is not altered by the amount of training or time on the platform. The authors propose that navigation in the water task involves a movement vector in which the distal cues and apparatus provide direction and distance information, respectively. 相似文献
194.
The relationships between social axioms, general beliefs that people hold about the social world, and values, defined as desirable goals for life, were examined in five cultural groups. Results show that the correlations between social axioms and Schwartz's (1992) values are generally low, suggesting that they represent two distinct types of construct. Based on a structural equation modelling approach, results further show that generally speaking, the five axiom dimensions are related to the value types in a meaningful and interpretable manner, and that these relationships are generally similar across the five cultural groups. Implications of these results and directions for future research are discussed. Copyright © 2006 John Wiley & Sons, Ltd. 相似文献
195.
Susan J Lederman Andrea Kilgour Ryo Kitada Roberta L Klatzky Cheryl Hamilton 《Revue canadienne de psychologie expérimentale》2007,61(3):230-241
We present an overview of a new multidisciplinary research program that focuses on haptic processing of human facial identity and facial expressions of emotion. A series of perceptual and neuroscience experiments with live faces and/or rigid three-dimensional facemasks is outlined. To date, several converging methodologies have been adopted: behavioural experimental studies with neurologically intact participants, neuropsychological behavioural research with prosopagnosic individuals, and neuroimaging studies using fMRI techniques. In each case, we have asked what would happen if the hands were substituted for the eyes. We confirm that humans can haptically determine both identity and facial expressions of emotion in facial displays at levels well above chance. Clearly, face processing is a bimodal phenomenon. The processes and representations that underlie such patterns of behaviour are also considered. 相似文献
196.
197.
Spencer-Rodgers J Williams MJ Hamilton DL Peng K Wang L 《Journal of personality and social psychology》2007,93(4):525-543
In 3 studies, the authors tested the hypothesis that Chinese participants would view social groups as more entitative than would Americans and, as a result, would be more likely to infer personality traits on the basis of group membership--that is, to stereotype. In Study 1, Chinese participants made stronger stereotypic trait inferences than Americans did on the basis of a target's membership in a fictitious group. Studies 2 and 3 showed that Chinese participants perceived diverse groups as more entitative and attributed more internally consistent dispositions to groups and their members. Guided by culturally based lay theories about the entitative nature of groups, Chinese participants may stereotype more readily than do Americans when group membership is available as a source of dispositional inference. 相似文献
198.
Transformation of the discriminative and eliciting functions of generalized relational stimuli 总被引:1,自引:0,他引:1
Dougher MJ Hamilton DA Fink BC Harrington J 《Journal of the experimental analysis of behavior》2007,88(2):179-197
In three experiments, match-to-sample procedures were used with undergraduates to establish arbitrary relational functions for three abstract visual stimuli. In the presence of samples A, B, and C, participants were trained to select the smallest, middle, and largest member, respectively, of a series of three-comparison arrays. In Experiment 1, the B (choose middle) stimulus was then used to train a steady rate of keyboard pressing before the A (choose smallest) and the C (choose largest) stimuli were presented. Participants pressed slower to A and faster to C than to B. Then B was paired with mild shock in a Pavlovian procedure with skin conductance change as the dependent variable. When presented with A and C, 6 of 8 experimental participants showed smaller skin conductance changes to A and larger skin conductance changes to C than to B. In Experiment 2, A was then used as a sample in a match-to-sample procedure to establish an arbitrary size ranking among four same-sized colored circle comparisons. One of the middle circles was then used to establish a steady rate of pressing before the other circles were presented. Five of 6 participants responded slower to the "smaller" circle and faster to the "larger" circle than they did to the "middle" circle. In Experiment 3, A, B, and C were then presented on a series of test trials requiring participants to pick the comparison that was less than, greater than, or equal to the sample. Novel stimuli were included on some trials. Results indicated that the relational training procedures produced derived relations among the stimuli used in training and that these allowed correct inferences of relative size ranking among novel stimuli. 相似文献
199.
200.
When accepting a parcel from another person, we are able to use information about that person’s movement to estimate in advance
the weight of the parcel, that is, to judge its weight from observed action. Perceptual weight judgment provides a powerful
method to study our interpretation of other people’s actions, but it is not known what sources of information are used in
judging weight. We have manipulated full form videos to obtain precise control of the perceived kinematics of a box lifting
action, and use this technique to explore the kinematic cues that affect weight judgment. We find that observers rely most
on the duration of the lifting movement to judge weight, and make less use of the durations of the grasp phase, when the box
is first gripped, or the place phase, when the box is put down. These findings can be compared to the kinematics of natural
box lifting behaviour, where we find that the duration of the grasp component is the best predictor of true box weight. The
lack of accord between the optimal cues predicted by the natural behaviour and the cues actually used in the perceptual task
has implications for our understanding of action observation in terms of a motor simulation. The differences between perceptual
and motor behaviour are evidence against a strong version of the motor simulation hypothesis.
A. F. de C. Hamilton and D. W. Joyce have contributed equally to this work. 相似文献