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91.
Matthew M. Botvinick Stacy Huffstetler Joseph T. McGuire 《Cognitive, affective & behavioral neuroscience》2009,9(1):16-27
A great deal of behavioral and economic research suggests that the value attached to a reward stands in inverse relation to
the amount of effort required to obtain it, a principle known as effort discounting. In the present article, we present the
first direct evidence for a neural analogue of effort discounting. We used fMRI to measure neural responses to monetary rewards
in the human nucleus accumbens (NAcc), a structure previously demonstrated to encode reference-dependent reward information.
The magnitude of accumbens activation was found to vary with both reward outcome and the degree of mental effort demanded
to obtain individual rewards. For a fixed level of reward, the NAcc was less strongly activated following a high-demand for
effort than following a low demand. The magnitude of this effect was noted to correlate with preceding activation in the dorsal
anterior cingulate cortex, a region that has been proposed to monitor information-processing demands and to mediate in the
subjective experience of effort. 相似文献
92.
Religious Identity,Expression, and Civility in Social Media: Results of Data Mining Latter‐Day Saint Twitter Accounts 下载免费PDF全文
Royce Kimmons Kristin McGuire McKell Stauffer J. Evan Jones Marie Gregson Madison Austin 《Journal for the scientific study of religion》2017,56(3):637-657
This study explores religious self‐identification, religious expression, and civility among projected Latter‐Day Saint Twitter accounts (201,107 accounts and 1,542,229 tweets). Novel methods of data collection and analysis were utilized to test hypotheses related to religious identity and civility against social media data at a large scale. Results indicated that (1) projected LDS Twitter accounts tended to represent authentic (rather than anonymous or pseudonymous) identities; (2) local minority versus majority status did not influence users’ willingness to religiously self‐identify; (3) isolation stigma did not occur when users religiously self‐identified; (4) participants exhibited much lower degrees of incivility than was anticipated from previous studies; and (5) religious self‐identification was connected to improved civility. Results should be of interest to scholars of religion for better understanding participation patterns and religious identity among Latter‐Day Saints and for exploring how these results may transfer to other groups of religious people. 相似文献
93.
Animal Cognition - The easy-to-hard effect in perceptual learning shows that training with easier examples can facilitate initially difficult or impossible distinctions between very similar... 相似文献
94.
Coordinating complex social and moral concerns when allocating resources is a key issue in late childhood and early adolescence. This study explored resource allocation in three goal contexts that required children to focus to differing degrees on moral and group concerns. Children (9–11-years, Mage = 9.84, n = 190) and adolescents (14–16-years, Mage = 14.92, n = 154) were informed their school peer group held an in-group norm (competition, cooperation). Participants allocated resources between their in-group and an outgroup within one of three goal contexts (prosocial, learning-focused, and group-focused). Participants allocated in favour of their in-group to achieve a prosocial goal but attenuated this when the goal was focused on learning and cooperation. Adolescents, more than children, reasoned about the goals of resource allocation to justify their decisions. From 9 years old, children begin to coordinate peer group norms and goal information when deciding how to allocate resources within intergroup contexts. 相似文献
95.
Mitchell KJ Raye CL McGuire JT Frankel H Greene EJ Johnson MK 《Journal of experimental psychology. Learning, memory, and cognition》2008,34(4):780-790
A short-term source monitoring procedure with functional magnetic resonance imaging assessed neural activity when participants made judgments about the format of 1 of 4 studied items (picture, word), the encoding task performed (cost, place), or whether an item was old or new. The results support findings from long-term memory studies showing that left anterior ventrolateral prefrontal cortex (PFC) is engaged when people make source attributions about reflectively generated information (cognitive operations, conceptual features). The findings also point to a role for right lateral PFC in attention to perceptual features and/or familiarity in making source decisions. Activity in posterior regions also differed depending on what was evaluated. These results provide neuroimaging evidence for theoretical approaches emphasizing that agendas influence which features are monitored during remembering (e.g., M. K. Johnson, S. Hashtroudi, & D. S. Lindsay, 1993). They also support the hypothesis that some of the activity in left lateral PFC and posterior regions associated with remembering specific information is not unique to long-term memory but rather is associated with agenda-driven source monitoring processes common to working memory and long-term memory. 相似文献
96.
JongHan Kim Scott T. Allison Dafna Eylon George R. Goethals Michael J. Markus Sheila M. Hindle Heather A. McGuire 《Journal of applied social psychology》2008,38(10):2550-2573
Although people prefer to associate with winners, there is also a strong desire to support the lovable loser or underdog. In 4 studies, we demonstrate the underdog effect and its delimiting conditions. In Studies 1 and 2, participants rooted for the underdog in judgments of athletic, business, and artistic competition. In Study 3, participants watched animated clips of struggling and nonstruggling geometric shapes. The results showed that participants showed more rooting, sympathy, and identification with struggling shapes than with nonstruggling ones. Study 4 identified conditions under which people abandon the underdog, showing that participants rooted for the underdog only when both self‐relevance and consequences were high. Theoretical implications of these findings are discussed. 相似文献
97.
98.
McGuire J 《Behavioral sciences & the law》2000,18(4):413-426
This paper addresses the question of whether criminal law, especially in its sentencing and penological aspects, can be adjusted in its workings to incorporate the perspective of therapeutic jurisprudence. A conceptual framework developed by Wexler, Winick, and their colleagues is employed to provide a basis for reflection on the operation and impact of sentencing processes. Of considerable importance in this exercise is a mounting volume of evidence concerning the outcomes of work with adjudicated offenders, which illustrates the potential of psycho-educational, behavioral-cognitive skills-training, and therapeutic programs for reduction of recidivism. Such intervention programs are currently offered within the limits set by, but are not intrinsic components of, judicial decisions. The psycho-legal implications of these findings are discussed and some possibilities surveyed for tentative exploration of actively therapeutic departures within crimino-legal decision-making. 相似文献
99.
Patricia S. McGuire Pat Vanburen Kathleen Alger Don R. Thomas 《Behavioral Interventions》1987,2(4):199-210
Seventeen living units in a residential treatment facility for developmentally disabled persons were assessed to determine the availability of teaching opportunities during the course of a normal day's routine. Teaching opportunities exist when the environment is arranged so that residents can participate in the ongoing activities. The teaching opportunities are identified within components that are recognizable activities that occur routinely and have a functional purpose. An assessment form was constructed as a means for documenting teachng opportunities. Assessments were conducted continuously from early morning through evening activities. The results of the assessments suggested that two approaches to resident care were in operation at the facility: one was characterized by a traditional care/custodial model, the other was characterized by a teaching model. On units where the number of teaching opportunities available was high, there was a smaller percentage of unstructured time, i.e., blocks of time when opportunities to engage in structured activities were not available to the residents. 相似文献
100.
Dethier (1957) described an aspect of food-search behavior in Phormia regina as the blow fly dance. A hungry fly walks in relatively straight lines with its proboscis retracted until it encounters food (sucrose). After ingesting even a small amount of sucrose, the fly begins making frequent, tight turns, flexes its front tarsi to bring more chemosensory hairs into contact with the substrate and repeatedly extends and retracts its proboscis. Like the central excitatory state (CES), which causes an increase in proboscis extensions to water when a fly is stimulated with sucrose, the dance lasts longer in hungrier flies or with higher sucrose concentrations. It was considered that dance behavior might be an ethologically relevant manifestation of CES. In order to test this hypothesis, dance duration in lines selected for high- and low-CES levels was measured. As predicted, flies from the high-CES line danced longer than those from the low-CES line, and the CES-dance correlation in individual flies was high. This phenotypic correlation disappeared in the F2 generation of a cross between the high- and low-CES lines, a result indicating that the observed variations in CES and dance duration were not caused by the same set of genes. Further characterization of the underlying genetic system showed that several linked autosomal genes with digenic epistatic interactions and a complex pattern of maternal inheritance were responsible for the difference in dance durations between the high- and low-CES lines. 相似文献