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161.
Investigated the abilities of children with mental retardation to remember the details of a personally experienced event. A simulated health check was administered to 20 children with mental retardation and 40 normally developing children, half matched on mental age (MA) and half matched on chronological age (CA) with the children with mental retardation. The children's memory was assessed immediately after the health check and 6 weeks later. Overall, the children with mental retardation accurately recalled the health check features, provided detail, and resisted misleading questions about features that did not occur. The group with mental retardation performed similarly to the MA matches on virtually all of the memory variables. The children with mental retardation performed worse than the CA matches on most of the memory variables, although they were able to recall a similar number of features. The findings are discussed in terms of the ability of children with mental retardation to provide accurate testimony. 相似文献
162.
Prehension movements of the right hand were recorded in a right-handed man (AC), with an injury to the left posterior parietal cortex (PPC) and with a section of the left half of the splenium. The kinematic analysis of AC's grasping movements in direct and perturbed conditions was compared to that of five control subjects. A novel effect in prehension was revealed--a hemispace effect--in healthy controls only. Movements to the left hemispace were faster, longer, and with a smaller grasp aperture; perturbation of both object position and distance resulted in the attenuation of the direction effect on movement time and the time to velocity peak, with a reverse pattern in the time to maximum grip aperture. Nevertheless, the correlation between transport velocity amplitude and grasp aperture remained stable in both perturbed and non-perturbed movements, reflecting the coordination between reaching and grasping in control subjects. In contrast, transport and grasp, as well as their coordination in both direct and perturbed conditions, were negatively affected by the PPC and splenium lesion in AC, suggesting that transport and grasp rely on two functionally identifiable subsystems. 相似文献
163.
164.
This study addressed the issue of intentional stabilization of between-persons coordination patterns (in-phase/isodirectional and anti-phase/non-isodirectional) and the attentional cost incurred by the nervous system in maintaining and further stabilizing these coordination patterns. Five pairs of participants performed in-phase and anti-phase interpersonal coordination patterns in dual-task conditions (coordination+RT task). Results showed that: (1) isodirectional pattern (in-phase) was more stable than non-isodirectional pattern (anti-phase), (2) both iso- and non-isodirectional pattern were stabilized intentionally, (3) RT was lower for the isodirectional pattern (i.e., the most stable), and (4) attentional manipulation led to a trade-off between pattern stability and RT performance. These results suggest that performing between-persons coordination patterns incurs a central cost that depends on the coupling strength between the limbs. These findings are consistent with the previous studies in intrapersonal coordination. 相似文献
165.
166.
In judo, placing the opponent in a situation of uncertainty requires the mastery of several throws. French young judoka learn, respectively, 10, 9, and 8 throws to earn yellow, orange, and green belts. These techniques allow throwing down a judoka in several directions (backward, forward, left and right). To see what happens in competition 82 judoka were observed during regional competitions. The average number of matches was 3.3 +/- 0.5. The average number of successful attack directions was 2.8 +/- 1.3 for 8 children at orange to green belt level; 2.1 +/- 0.7 for 11 children at blue belt level; 2.2 +/- 0.8 for 17 children at brown belt level; 2.8 +/- 0.9 for 20 cadets at brown to black belt level, 2.6 +/- 1.1 for 10 juniors at brown to black belt level, and 3.3 +/- 0.9 for 16 seniors at black belt level. These scores for children with blue and brown belts were significantly different (p=.02) from those of seniors with black belts. Such results imply a nonlinear progression between the technical level (represented by the belt) and the capacity to create uncertainty (the ability to throw down the opponent with at least three techniques in three different directions). Judo is a sport of slow technical maturation; it requires this adaptation before its mastery in competition. 相似文献
167.
The Temperament and Character Inventory (TCI; Cloninger, Przybeck, Svrakic, & Wetzel, 1994) is a self-questionnaire developed to assess the 7 dimensions of personality described by Cloninger et al. (1994) with a total of 29 subscales. In 1999, a revised version was proposed by Cloninger (TCI-R). In this study, we present psychometric properties of the TCI-R from 958 French-speaking participants of Belgium. Women exhibited higher scores for harm avoidance, reward dependence, and cooperativeness dimensions. The proposed factorial structure of 4 temperament dimensions and 3 character dimensions was confirmed. The TCI-R inventory had good test-retest reliabilities as well as good alpha coefficients. The addition of 3 new subscales to the original scale for Persistence has produced a very reliable dimension in the TCI-R. 相似文献
168.
Patrick?BoninEmail author Bruno?Boyer Alain?Méot Michel?Fayol Sylvie?Droit 《Behavior research methods》2004,36(1):127-139
A set of 142 photographs of actions (taken from Fiez & Tranel, 1997) was standardized in French on name agreement, image agreement,
conceptual familiarity, visual complexity, imageability, age of acquisition, and duration of the depicted actions. Objective
word frequency measures were provided for the infinitive modal forms of the verbs and for the cumulative frequency of the
verbal forms associated with the photographs. Statistics on the variables collected for action items were provided and compared
with the statistics on the same variables collected for object items. The relationships between these variables were analyzed,
and certain comparisons between the current database and other similar published databases of pictures of actions are reported.
Spoken and written naming latencies were also collected for the photographs of actions, and multiple regression analyses revealed
that name agreement, image agreement, and age of acquisition are the major determinants of action naming speed. Finally, certain
analyses were performed to compare object and action naming times. The norms and the spoken and written naming latencies corresponding
to the pictures are available on the Internet (http://www.psy.univ-bpclermont.fr/~pbonin/pbonin-eng.html) and should be of
great use to researchers interested in the processing of actions. 相似文献
169.
The metrics of spatial distance traversed during mental imagery 总被引:2,自引:0,他引:2
Rinck M Denis M 《Journal of experimental psychology. Learning, memory, and cognition》2004,30(6):1211-1218
The authors conducted 2 experiments to study the metrics of spatial distance in a mental imagery task. In both experiments, participants first memorized the layout of a building containing 10 rooms with 24 objects. Participants then received mental imagery instructions and imagined how they walked through the building from one room to another. The authors manipulated Euclidean distance involved in these imaginary motions: Spatial distance measured in centimeters on the layout was either short or long. Independently, they varied categorical distance: The motions led through one room or two rooms. The time needed to imagine motions and response times to test probes indicated that both Euclidean distance and categorical distance affected mental imagery. The authors discuss the new finding of categorical distance effects in mental imagery and relate the results to earlier failures to find Euclidean distance effects in formally equivalent studies of narrative comprehension. 相似文献
170.
Impact of executive dysfunctions on episodic memory abilities in patients with ruptured aneurysm of the anterior communicating artery 总被引:3,自引:0,他引:3
Executive and memory dysfunctions are among the most frequently reported deficits following a ruptured aneurysm of the anterior communicating artery (ACoA). In order to study the impact of the dysexecutive syndrome on episodic and semantic memory, the data obtained from 59 ACoA patients were examined retrospectively. All patients were assessed on a variety of episodic memory tests (Rey Auditory-Verbal Learning Test, Rey Complex Figure Test, Weschler Memory Scale), semantic memory (verbal fluency), and standardized tests of executive functions (Trail Making Test, Maze tests, Wisconsin Card Sorting Test). There was a strong positive correlation between executive dysfunction and retrieval difficulties in episodic and semantic memory tasks. Comparisons of subgroups of patients with high and low frontal lobe functioning on delayed recall and recognition revealed a significant group X condition interaction in addition to significant group and condition main effects. ACoAs patients with low frontal lobe functioning were particularly deficient in free recall (immediate and delayed) while recognition was equally well preserved in the two subgroups. Neither subgroup presented with an abnormal forgetting over time suggesting a retrieval deficit rather than a true retention impairment. 相似文献