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Olga Megalakaki Charles Tijus Romain Baiche Sébastien Poitrenaud 《Thinking & reasoning》2013,19(2):159-182
This article reports a study carried out in order to measure how semantic factors affect reductions in the difficulty of the Chinese Ring Puzzle (CRP) that involves removing five objects according to a recursive rule. We hypothesised that semantics would guide inferences about action decision making. The study involved a comparison of problem solving for two semantic isomorphic variants of the CRP ( fish and fleas ) with problem solving for the puzzle's classic variant (the Balls and Boxes problem; Kotovsky & Simon, 1990). Our results showed that the number of moves was reduced by 47% in the fish version and by 51% in the flea version. We discuss these results in terms of semantic inferences and reductions in relational complexity. During the exploratory stage of problem solving participants discover the dependent relations between elements in the puzzle. Initially these relations are processed separately; learning involves generalising the relations within a coherent, interconnected whole that makes up the puzzle's rules. It seems that semantics make it easier for the puzzle's elements to be grouped together within coherent, meaningful wholes, which reduces relational complexity and facilitates problem solving. 相似文献
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Mixed results of the impact of transcranial direct current stimulation (tDCS) on working memory have been reported. Contrarily to previous studies who focused mainly on stimulating the dorsolateral prefrontal cortex, we modulated the left intraparietal sulcus (IPS) area which is considered to support attentional control aspects of working memory. Using a within-participant experimental design, participants completed three different conditions: anodal stimulation of the IPS, cathodal stimulation of the IPS, and sham stimulation of the IPS. Both visual and verbal working memory tasks were administered. In the visual task, participants had to memorize a random set of colored figures. In the verbal task, participants had to memorize a string of letters. Working memory load was manipulated in both tasks (six figures/letters vs. two figures/letters). No significant differences in accuracy or reaction time between the anodal, cathodal and sham conditions were found. Bayesian analysis supported evidence for an absence of effect. The results of the present study add to the growing body of contradictory evidence regarding the modulatory effects of single session tDCS on working memory performance. 相似文献
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Dr. rer. biol. hum. Gabriele Pitschel-Walz Christine Rummel-Kluge Teresa Frob?se Romain Beitinger Michaela Stiegler Josef B?uml Werner Kissling 《Psychotherapeut》2012,57(4):313-318
Objective
Enhancing empowerment is one of the aims of psychoeducational family interventions but it has never been examined in psychoeducational groups for relatives led by professionals. This study investigated the knowledge gain and the increase of empowerment of psychoeducational group programs for relatives in a naturalistic setting.Methods
A total of 54 relatives of persons with schizophrenia or schizoaffective disorders took part in a psychoeducational group program of 8 sessions. A short questionnaire was used to assess the empowerment before and after the group programs. Knowledge gain was measured with the knowledge of illness about schizophrenia questionnaire (WFB).Results
Among the participants of the psychoeducational groups the level of empowerment was significantly enhanced and the knowledge was significantly increased (p?<?0.01). The improvement of empowerment was independent of the knowledge gain and did not correlate with gender, age, education or group attendance.Conclusions
Psychoeducational groups for family members not only reduce the rehospitalization rates of the ill relatives but also have additional positive effects on the family members themselves: better knowledge of the illness and enhanced empowerment. The findings emphasize the importance of psychoeducational groups for the relatives of persons with schizophrenia. 相似文献24.
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Eric de Romain 《World Futures: Journal of General Evolution》2013,69(1-3):132-135
In the face of the multiple threats of destruction facing our environment, it has become urgent for a real political will to emerge. The environment must be at the center of international cooperation and action; a right to the environment must be set up, outlining a duty of ecological intervention. 相似文献
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Vaughn S Cirino PT Wanzek J Wexler J Fletcher JM Denton CD Barth A Romain M Francis DJ 《School psychology review》2010,39(1):3-21
This study examined the effectiveness of a yearlong, researcher-provided, Tier 2 (secondary) intervention with a group of sixth-graders. The intervention emphasized word recognition, vocabulary, fluency, and comprehension, Participants scored below a proficiency level on their slate accountability test and were compared to a similar group of struggling readers receiving school-provided instruction. All students received the benefits of content area teachers who participated in researcher-provided professional development designed to integrate vocabulary and comprehension practices throughout the school day (Tier 1). Students who participated in the Tier 2 intervention showed gains on measures of decoding, fluency, and comprehension, but differences relative to students in the comparison group were small (median d = +0.16). Students who received the re searcher-provided intervention scored significantly higher than students who received comparison intervention on measures of word attack, spelling, the state accountability measure, passage comprehension, and phonemic decoding efficiency, although most often in particular subgroups. 相似文献