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101.
Paller KA Ranganath C Gonsalves B LaBar KS Parrish TB Gitelman DR Mesulam MM Reber PJ 《Learning & memory (Cold Spring Harbor, N.Y.)》2003,10(4):253-260
Rapidly identifying known individuals is an essential skill in human society. To elucidate the neural basis of this skill, we monitored brain activity while experimental participants demonstrated their ability to recognize people on the basis of viewing their faces. Each participant first memorized the faces of 20 individuals who were not known to the participants in advance. Each face was presented along with a voice simulating the individual speaking their name and a biographical fact. Following this learning procedure, the associated verbal information could be recalled accurately in response to each face. These learned faces were subsequently viewed together with new faces in a memory task. Subjects made a yes-no recognition decision in response to each face while also covertly retrieving the person-specific information associated with each learned face. Brain activity that accompanied this retrieval of person-specific information was contrasted to that when new faces were processed. Functional magnetic resonance imaging in 10 participants showed that several brain regions were activated during blocks of learned faces, including left hippocampus, left middle temporal gyrus, left insula, and bilateral cerebellum. Recordings of event-related brain potentials in 10 other participants tracked the time course of face processing and showed that learned faces engaged neural activity responsible for person recognition 300-600 msec after face onset. Collectively, these results suggest that the visual input of a recently learned face can rapidly trigger retrieval of associated person-specific information through reactivation of distributed cortical networks linked via hippocampal connections. 相似文献
102.
Darren D. Moore Chichun Lin Simi Kamboj Ryan Tam Luciano Pasicel 《Contemporary Family Therapy》2018,40(4):357-371
The purpose of this study was to explore Marriage and Family Therapy students’ experiences attending Overeaters Anonymous (OA). Utilizing a qualitative survey administered in an addictions course at an institution located in a rural area of the United States, 18 marriage and family therapy (MFT) graduate students reflected on their participation in both online and telephone meetings. In this study, MFT students provided their perspectives regarding the feasible utilization of Overeaters Anonymous in clinical treatment, with an emphasis on the consideration of social support for clients who may reside in rural areas. Three major themes emerged which included (1) enlightenment through exposure; (2) OA as a viable adjunct to therapy; and (3) convenience and comfort. The study addressed recommendations for MFT education, clinical implications, and future research. 相似文献
103.
104.
RESPONSE ALLOCATION IN CONCURRENT CHAINS WHEN TERMINAL‐LINK DELAYS FOLLOW AN ASCENDING AND DESCENDING SERIES
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Darren R. Christensen Randolph C. Grace 《Journal of the experimental analysis of behavior》2009,91(1):1-20
Eight pigeons were trained in a concurrent‐chains procedure in which the terminal‐link immediacy ratio followed an ascending or descending series. Across sessions, one terminal‐link delay changed from 2 s to 32 s to 2 s or from 32 s to 2 s to 32 s, while the other was always 8 s. For all pigeons, response allocation tracked changes in delay and was biased towards the 8‐s alternative on the descending series, indicating a hysteresis effect, and was more sensitive to changes in the terminal‐link delay ratio for relatively long (> 8 s) than short (< 8 s) delays. Both the hysteresis and effect of delay duration were predicted by an extended version of Grace and McLean's (2006) decision model. The extended decision model provided an overall better account of the results than a simple linear‐operator model (Grace, 2002), and holds promise for an integrated account of choice in concurrent chains for both acquisition and steady‐state conditions. 相似文献
105.
Grace and McLean (2006) proposed a decision model for acquisition of choice in concurrent chains which assumes that after reinforcement in a terminal link, subjects make a discrimination whether the preceding reinforcer delay was short or long relative to a criterion. Their model was subsequently extended by Christensen and Grace (2008, 2009a, 2009b) to include effects of initial- and terminal-link duration on choice. We show that an expression for steady-state responding can be derived from the decision model, which enables a model for choice that provides an account of archival data that is equal or superior to the contextual choice model (Grace, 1994) and hyperbolic value-added model (Mazur, 2001) in terms of goodness of fit, parsimony, and parameter invariance. The success of the steady-state decision model validates the strategy of understanding acquisition phenomena as a bridge toward explaining choice at the molar level. 相似文献
106.
The current research explores the effects of dissociative reference groups on consumer preferences. Males had more negative evaluations of, and were less inclined to choose, a product associated with a dissociative (i.e., female) reference group than a neutral product (Study 1). This finding was moderated by whether the product was consumed in public or private (Study 2) and public self‐consciousness (Study 3). We suggest the mechanism underlying our effects is a desire to present a positive self‐image to others. The role of dissociative reference groups in marketing communications is discussed. 相似文献
107.
Consumers are increasingly exposed to scams and questionable marketing practices. The current work examines how consumers’ emotional states influence their gullibility (a belief or compliance with a request that most people would consider naïve). Across four studies, we show that the emotional experience of moral elevation reduces susceptibility to believe dubious claims or comply with suspicious requests. While past research showed that moral elevation enhances nurturance behavior (and support of a requester), the current work suggests that elevation may also play a protective function (that is, reduce gullibility). We show that decreased trust in a persuasion agent mediates the influence of elevation on gullibility, and demonstrate this effect in the context of health and financial domains. 相似文献
108.
109.
Darren J. Devaney Mark Stephen Nesti Noora J. Ronkainen Martin Littlewood David Richardson 《Journal of Applied Sport Psychology》2018,30(3):300-320
The 15-month ethnography reported here investigated the culturally and contextually relevant lifestyle concerns for which national-level youth cricketers seek support and the personal meanings ascribed to them. Players discussed lifestyle challenges and support, with five themes emerging: (a) players appreciating lifestyle support, (b) adapting to the new environment, (c) managing competing demands, (d) educational choices and professional contracts, and (e) identity negotiation in critical moments. The challenges impacted players' sense of self, well-being, and ultimately performance. The findings suggest lifestyle practitioners should support players through counseling approaches, strong player relationships, and environment immersion with a view to impacting performance. 相似文献
110.
Darren E. Sherkat 《Journal for the scientific study of religion》2001,40(2):221-234
Varying religious commitment across generations plays a key role in explaining transitions from sect to church, and the formation of sectarian movements. Within a sect, elite members of younger generations are seen to spur internal secularization that transforms otherworldly sects into world-affirming churches. In this paper I examine how cohort differences in religious commitment across denominations evidence the sect-church transformation process, and point to sources of sect formation among African-Americans. Using data from the 1972–1998 General Social Surveys, I analyze denomination-specific cohort differences in religious participation among African-Americans. Cohort-specific shifts in religious participation across denominations demonstrate the secularization of African-American mainline Methodist and Baptist groups, the continued vitality of sectarian denominations, and the nascent ascendance of "nondenominational" churches on the fringes of the religious marketplace. 相似文献