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211.
Marlene EchoHawk 《Suicide & life-threatening behavior》1997,27(1):60-67
Reportedly, Native Americans have a rate of suicide that is greater than any other ethnic group in the United States, especially in the age range of 15–24. Many who are concerned as to why this is the case offer a variety of theories. Most of the theories have yet to be tested. This particular presentation focuses on the traditional tribal structure of most Native Americans and events of history that have impacted the cultures of Native American Tribes. The particular events covered refer to Western education, various religions, and legislation as playing a most significant role in impacting the cultures of Native Americans. With the hope that we can all work together to diminish the scourge of Native American people, I repeat the words of Chief Seattle, “… be just and deal kindly with my people.” 相似文献
212.
Marc Colomer Haerin Chung Marlene Meyer Ranjan Debnath Santiago Morales Nathan A. Fox Amanda Woodward 《Developmental science》2023,26(3):e13339
Despite substantial evidence indicating a close link between action production and perception in early child development, less is known about how action experience shapes the processes of perceiving and anticipating others’ actions. Here, we developed a novel approach to capture functional connectivity specific to certain brain areas to investigate how action experience changes the networks involved in action perception and anticipation. Nine- and-12-month-old infants observed familiar (grasping) and novel (tool-use) actions while their brain activity was measured using EEG. Infants’ motor competence of both actions was assessed. A link between action experience and connectivity patterns was found, particularly during the anticipation period. During action anticipation, greater motor competence in grasping predicted greater functional connectivity between visual (occipital alpha) and motor (central alpha) regions relative to global levels of whole-brain EEG connectivity. Furthermore, visual and motor regions tended to be more coordinated in response to familiar versus novel actions and for older than younger participants. Critically, these effects were not found in the control networks (frontal-central; frontal-occipital; parietal-central; parietal-occipital), suggesting a unique role of visual-motor networks on the link between motor skills and action encoding.
Highlights
- Infants’ motor development predicted functional connectivity patterns during action anticipation.
- Faster graspers, and older infants, showed a stronger ratio of visual-motor neural coherence.
- Overall whole-brain connectivity was modulated by age and familiarity with the actions.
- Measuring inter-site relative to whole-brain connectivity can capture specific brain-behavior links.
- Measures of phase-based connectivity over time are sensitive to anticipatory action.
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In 3 experiments, the authors tested the effect of perceived social consensus on attitudes toward obese people. Participants completed self-report measures of attitudes toward obese people prior to and after manipulated consensus feedback depicting attitudes of others. In Study 1 (N=60), participants decreased negative and increased positive stereotypes after learning that others held more favorable attitudes toward obese people. In Study 2 (N=55), participants improved attitudes when they learned about favorable attitudes of obese people from an in-group versus an out-group source. In Study 3 (N=200), a consensus approach was compared with other stigma reduction methods. Social consensus feedback influenced participants' attitudes and beliefs about causes of obesity. Providing information about the uncontrollable causes of obesity and supposed scientific prevalence of traits also improved attitudes. 相似文献
216.
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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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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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.