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261.
Louise A. Brown Elaine H. Niven Robert H. Logie Stephen Rhodes Richard J. Allen 《Memory (Hove, England)》2017,25(2):261-275
Three experiments investigated younger (18–25 yrs) and older (70–88 yrs) adults’ temporary memory for colour–shape combinations (binding). We focused upon estimating the magnitude of the binding cost for each age group across encoding time (Experiment 1; 900/1500?ms), presentation format (Experiment 2; simultaneous/sequential), and interference (Experiment 3; control/suffix) conditions. In Experiment 1, encoding time did not differentially influence binding in the two age groups. In Experiment 2, younger adults exhibited poorer binding performance with sequential relative to simultaneous presentation, and serial position analyses highlighted a particular age-related difficulty remembering the middle item of a series (for all memory conditions). Experiments 1–3 demonstrated small to medium binding effect sizes in older adults across all encoding conditions, with binding less accurate than shape memory. However, younger adults also displayed negative effects of binding (small to large) in two of the experiments. Even when older adults exhibited a greater suffix interference effect in Experiment 3, this was for all memory types, not just binding. We therefore conclude that there is no consistent evidence for a visual binding deficit in healthy older adults. This relative preservation contrasts with the specific and substantial deficits in visual feature binding found in several recent studies of Alzheimer's disease. 相似文献
262.
Research on adult concepts indicates that category structure varies by domain; adults view membership in animal categories
as absolute but membership in artifact categories as graded. In this study, we examined domain differences in beliefs about
category boundaries among young children (5-year-olds). The results indicated that young children, like adults, were less
likely to endorse graded category membership for animal than for artifact categories. These domain differences could not be
attributed to domain differences in typicality. Implications for conceptual development and for models of domain specificity
in adult cognition are discussed. 相似文献
263.
Kirsten J. Hancock Gillian Rhodes 《British journal of psychology (London, England : 1953)》2008,99(1):45-56
The other‐race effect (ORE) in face recognition describes a well‐established finding of better recognition for own‐race than other‐race faces. Although widely thought to reflect differences in contact between own‐ and other‐race faces, little is known about how different contact levels relate to changes in processing of those faces. This study investigated how contact affects the size of the ORE and the use of expert configural face‐coding mechanisms. Using inversion decrements as an index of configural coding, we predicted that increased self‐reported contact would be associated with greater use of configural‐coding mechanisms. Chinese and Caucasian participants varying in contact with other‐race faces were recruited. The Chinese participants also varied in their length of residence in a Western country. Results showed that higher levels of contact were associated with a reduction in the ORE in both face recognition and configural coding. Importantly, smaller cross‐race differences in configural coding were also associated with a smaller ORE in face recognition. 相似文献
264.
265.
Jasmine J. Hooper Clare A. M. Sutherland Louise Ewing Robyn Langdon Nathan Caruana Emily Connaughton Nikolas Williams Jayden Greenwell‐Barnden Gillian Rhodes 《British journal of psychology (London, England : 1953)》2019,110(4):617-634
Facial impressions of trustworthiness guide social decisions in the general population, as shown by financial lending in economic Trust Games. As an exception, autistic boys fail to use facial impressions to guide trust decisions, despite forming typical facial trustworthiness impressions (Autism, 19, 2015a, 1002). Here, we tested whether this dissociation between forming and using facial impressions of trustworthiness extends to neurotypical men with high levels of autistic traits. Forty‐six Caucasian men completed a multi‐turn Trust Game, a facial trustworthiness impressions task, the Autism‐Spectrum Quotient, and two Theory of Mind tasks. As hypothesized, participants’ levels of autistic traits had no observed effect on the impressions formed, but negatively predicted the use of those impressions in trust decisions. Thus, the dissociation between forming and using facial impressions of trustworthiness extends to the broader autism phenotype. More broadly, our results identify autistic traits as an important source of individual variation in the use of facial impressions to guide behaviour. Interestingly, failure to use these impressions could potentially represent rational behaviour, given their limited validity. 相似文献
266.
ABSTRACT— Mentoring is one of the most popular social interventions in American society, with an estimated three million youth in formal one-to-one relationships. Studies have revealed significant associations between youth involvement in mentoring relationships and positive developmental outcomes. These associations are modest, however, and depend on several intervening processes. Centrally important is the formation of close, enduring connections between mentors and youth that foster positive developmental change. Effects of mentoring programs likewise typically have been small in magnitude, but they increase systematically with the use of program practices likely to support relationship development. Gaps between research and practice are evident both in the indiscriminate use of the term mentoring in the prevention field and in a focus on the growth and efficiency of mentoring programs at the expense of quality. Continued expansion of effective mentoring will require a better alignment of research and practice. 相似文献
267.
The study's purpose was to examine the measurement domain of confidence items used in physical activity research. We hypothesized that confidence items, including a phrase to hold motivation constant, would differ from standard confidence items. Participants (N = 248 students) completed confidence items, a thought‐listing procedure, and a 2‐week self‐report of physical activity. Results showed that confidence items with motivation held constant loaded exclusively on one factor, but standard confidence items were factor complex with intention. Correlations with physical activity intention and behavior were larger for confidence items than confidence items with motivation held constant. Finally, the thought‐listing procedure identified that 3 of the 7 reasons for answering confidence items were outside the intended measurement domain of self‐efficacy. 相似文献
268.
Jaquet E Rhodes G Hayward WG 《Quarterly journal of experimental psychology (2006)》2007,60(11):1457-1467
Opposite changes in perception (aftereffects) can be simultaneously induced for faces from different social categories—for example, Chinese and Caucasian faces. We investigated whether these aftereffects are generated in high-level face coding that is sensitive to the social category information in faces, or in earlier visual coding sensitive to simple physical differences between faces. We caricatured the race of face stimuli and created face continua ranging from caricatured Caucasian faces (SuperCaucasian) to caricatured Chinese faces (SuperChinese). Participants were adapted to oppositely distorted faces that were a fixed physical distance apart on the morph continua. Larger opposite aftereffects were found following adaptation to faces from different race categories (e.g., contracted Chinese and expanded Caucasian faces), than for faces that were the same physical distance apart on the morph continua, but were within a race category (e.g., contracted SuperChinese and expanded Chinese faces). These results suggest that opposite aftereffects for Chinese and Caucasian faces reflect the recalibration of face neurons tuned to high-level social category information. 相似文献
269.
Lesions of rat infralimbic cortex enhance recovery and reinstatement of an appetitive Pavlovian response
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The prefrontal cortex (PFC) has a well-established role in the inhibition of inappropriate responding, and evidence suggests that the infralimbic (IL) region of the rat medial PFC (MPFC) may be involved in some aspects of extinction of conditioned fear. MPFC lesions including, but not those sparing the IL cortex increase spontaneous recovery of extinguished conditioned fear when tested 24 h after an initial extinction session. The current experiment extended these findings by use of appetitive rather than aversive conditioning. Ten IL-lesioned and 11 sham-operated rats were trained on a Pavlovian task in which a conditioned stimulus (CS) was followed by food pellets (the unconditioned stimulus or US). IL lesions had no effect on extinction of the conditioned response (CR, magazine entries) during the first extinction session. However, the level of spontaneous recovery between the first extinction session and a second, 24 h later, was increased in IL-lesioned rats relative to sham animals. In contrast, evidence of savings measured between the extinction sessions did not differ between groups. Furthermore, reinstatement of the CR following unsignaled delivery of the US was also increased in IL-lesioned rats. 相似文献
270.
Standard views on surrogate decision making present alternative ideal models of what ideal surrogates should consider in rendering a decision. They do not, however, explain the physician's responsibility to a patient who lacks decisional capacity or how a physician should regard surrogates and surrogate decisions. The authors argue that it is critical to recognize the moral difference between a patient's decisions and a surrogate's and the professional responsibilities implied by that distinction. In every case involving a patient who lacks decisional capacity, physicians and the treatment team have to make judgments about the appropriateness of both the surrogate and the surrogate's decision. They have to assess the surrogate's decisional capacity and attitude toward the patient as well as the reasons that support the surrogate's decision. This paper provides a model for acceptable surrogate decisions and a standard for blocking inappropriate surrogates. Only decisions based on widely shared reasons are allowable for surrogate refusal of highly beneficial treatment. 相似文献