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161.
Reflective thought, as sustained in writing, is attributed to two-way communication between a content problem space and a rhetorical problem space. An instructional experiment involving sixth-graders aimed at helping them sustain such a two-way process independently, in place of the more typical one-way process of generating content and writing it out. Instruction included modeling of thinking aloud, both by instructors and students, use of cues to stimulate self-questioning during planning monologues, and direct strategy instruction emphasizing dialectical synthesis of conflicting ideas. Increased numbers of reflective statements in thinking-aloud protocols and rated reflectiveness of compositions indicate gains were made at the level of reflection on individual ideas. 相似文献
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163.
ABSTRACT Whether colour information contributes to the process of face recognition remains controversial. We examine this question here by evaluating the face recognition performance of individuals who are colour blind. Specifically, we compared the performance profile of colour blind and matched control individuals on a colour face recognition task where shape information was progressively degraded. The colour blind participants performed significantly more poorly than controls on this task, as revealed through multiple dependent measures. There was, however, no difference between these two groups on a standardized grayscale control task of face recognition, ruling out a generic face recognition deficit. These results both uncover a face recognition deficit in colour blind individuals and provide evidence for the contribution of colour to everyday facial recognition. 相似文献
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165.
Holistic processing (HP) of faces refers to the obligatory, simultaneous processing of the parts and their relations, and it emerges over the course of development. HP is manifest in a decrement in the perception of inverted versus upright faces and a reduction in face processing ability when the relations between parts are perturbed. Here, adopting the HP framework for faces, we examined the developmental emergence of HP in another domain for which human adults have expertise, namely, visual word processing. Children, adolescents, and adults performed a lexical decision task and we used two established signatures of HP for faces: the advantage in perception of upright over inverted words and nonwords and the reduced sensitivity to increasing parts (word length). Relative to the other groups, children showed less of an advantage for upright versus inverted trials and lexical decision was more affected by increasing word length. Performance on these HP indices was strongly associated with age and with reading proficiency. Also, the emergence of HP for word perception was not simply a result of improved visual perception over the course of development as no group differences were observed on an object decision task. These results reveal the developmental emergence of HP for orthographic input, and reflect a further instance of experience-dependent tuning of visual perception. These results also add to existing findings on the commonalities of mechanisms of word and face recognition.
Research Highlights
- Children showed less of an advantage for upright versus inverted trials compared to adolescents and adults.
- Relative to the other groups, lexical decision in children was more affected by increasing word length.
- Performance on holistic processing (HP) indices was strongly associated with age and with reading proficiency.
- HP emergence for word perception was not due to improved visual perception over development as there were no group differences on an object decision task.