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71.
Interspecific aggression between sibling species may enhance discrimination of competitors when recognition errors are costly, but proximate mechanisms mediating increased discriminative ability are unclear. We studied behavioral and neural mechanisms underlying responses to conspecific and heterospecific vocalizations in Alston’s singing mouse (Scotinomys teguina), a species in which males sing to repel rivals. We performed playback experiments using males in allopatry and sympatry with a dominant heterospecific (Scotinomys xerampelinus) and examined song-evoked induction of egr-1 in the auditory system to examine how neural tuning modulates species-specific responses. Heterospecific songs elicited stronger neural responses in sympatry than in allopatry, despite eliciting less singing in sympatry. Our results refute the traditional neuroethological concept of a matched filter and instead suggest expansion of sensory sensitivity to mediate competitor recognition in sympatry. 相似文献
72.
Kristin A. Phelps Raymond G. Miltenberger Tess Jens Heather Wadeson 《Behavioral Interventions》2008,23(3):181-200
The present study investigated the effects of weekly dog visits on depression scores, mood, and social interaction in elderly individuals living in a nursing home. Five elderly residents participated in baseline assessments for 4–8 weeks and then received weekly dog visits for 6 weeks. Assessments, consisting of weekly observations of social interaction and paper and pencil measures of mood and depression, continued during the dog visits. The effect of dog visits was evaluated in a multiple baseline across participants design. Dog visits did not improve depression scores, mood (with the exception of one resident), or social interaction (with the exception of one resident). Residents did interact with the dog during the visits, however, and reported that they enjoyed the visits. These results show that dog visits do not always have therapeutic effects and suggest the need for further research in the area before the beneficial effects of dog visits can be substantiated. Copyright © 2008 John Wiley & Sons, Ltd. 相似文献
73.
Erin Phelps Stacy Zimmerman A.E.A. Warren Helena Jeli
i Alexander von Eye Richard M. Lerner 《Journal of applied developmental psychology》2009,30(5):571
Using data from Grades 5 to 7 of the longitudinal 4-H Study of Positive Youth Development (PYD), this research assessed the structure and development of PYD. Building on Grade 5 findings, that “Five Cs” (Competence, Confidence, Connection, Character, and Caring) could be empirically defined as latent constructs converging on a second-order construct, labeled PYD, we used structural models to assess the fit of this original model for Grades 5, 6, and 7. Results indicated that PYD continued to be a robust construct that can be defined comparably for Grades 6 and 7, as it was in Grade 5. We discuss implications for future research and for applications of the finding that, across the three years of early adolescence that we assessed (about ages 10 to 12), there is continuity in the structure of PYD. 相似文献
74.
Phelps EA 《The American journal of bioethics : AJOB》2007,7(1):49-50; discussion W1-4
75.
76.
Brady J Phelps 《The Behavior analyst / MABA》2007,30(2):217-226
Any instructor of behavior analysis is no doubt aware that neuroscience, characterized by a cognitive–mentalistic approach, has substantial influence in behavioral science. As a counterpoint, behavior analysis can raise timely questions and promote critical thinking, as did Skinner (1977) in his critical analysis of cognitive psychology. Keenan and Dillenburger (2004) have produced a CD-ROM with effective audio-visual presentations to aid in the teaching of behavior analysis and in critiquing reductionistic mentalism. 相似文献
77.
78.
Women with a familial or genetic predisposition to ovarian cancer are at significantly increased risk of developing the disease, and this warrants effective risk management strategies. A clinical trial of ovarian cancer screening (OCS) is being conducted to establish the effectiveness of this risk management strategy. This article reports data from its psychological partner study which aims to evaluate the psychological effects of OCS. Leventhal's Self-Regulatory Model provided the theoretical framework for understanding emotional responses to OCS. The revised Illness Perceptions Questionnaire (IPQ-R) is based on this model and the IPQ-R, adapted to the risk of ovarian cancer, was completed by women (N?=?1999) prior to screening. The original IPQ-R factor structure was not replicated but IPQ-R variables explained 14.70% of the variance in women's ovarian cancer-specific distress after controlling for age, general anxiety and depression. Negative emotional representations of ovarian cancer risk and general anxiety were moderately associated with greater ovarian cancer-specific distress whereas cognitive illness representations were weakly related to ovarian cancer-specific distress. Further analyses of data from the ongoing psychological evaluation are needed to determine the predictive utility of IPQ-R variables in explaining distress during OCS. 相似文献
79.
Emotion strengthens the subjective sense of remembering. However, these confidently remembered emotional memories have not been found be more accurate for some types of contextual details. We investigated whether the subjective sense of recollecting negative stimuli is coupled with enhanced memory accuracy for three specific types of central contextual details using the remember/know paradigm and confidence ratings. Our results indicate that the subjective sense of remembering is indeed coupled with better recollection of spatial location and temporal context, but not higher memory accuracy for colored dots placed in the conceptual center of negative and neutral scenes. These findings show that the enhanced subjective recollective experience for negative stimuli reliably indicates objective recollection for spatial location and temporal context, but not for other types of details, whereas for neutral stimuli, the subjective sense of remembering is coupled with all the types of details assessed. Translating this finding to flashbulb memories, we found that, over time, more participants correctly remembered the location where they learned about the terrorist attacks on 9/11 than any other canonical feature. Likewise, participants' confidence was higher in their memory for location versus other canonical features. These findings indicate that the strong recollective experience of a negative event corresponds to an accurate memory for some kinds of contextual details but not for other kinds. This discrepancy provides further evidence that the subjective sense of remembering negative events is driven by a different mechanism than the subjective sense of remembering neutral events. 相似文献
80.
In the context of everyday reasoning, individuals inferring a causal relation between an antecedent (A) and event (E) rarely have available as evidence for their inferences frequencies of all the four possible occurences, AE, A, E, and . The present study investigated the willingness of subjects in fourth, seventh, and tenth grades, and college to infer such a relation under the more typical condition of incomplete frequency data. There was some improvement with age, but even college subjects were remarkably willing to infer a relationship based on minimal data, notably the presence of cases in the AE cell. No subjects indicated the need for information regarding the remaining cells. Subsequent presentations of datafor the A cell did not substantially alter subjects' willingness to infer a relation, nor did subsequent presentation of data for the remaining two cells, despite the fact that complete frequency data indicated independence of A and E. A comparison group of subjects presented with all four cells at once showed somewhat more frequent application of quantitative reasoning strategies, but their willingness to infer a relationship between A and E was not notably less than that of subjects to whom the data were presented sequentially. 相似文献