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191.
Learning and other common psychological processes presumably evolved because they contribute to reproductive fitness, but reproductive outcomes are rarely measured in psychology experiments. We examined the effects of Pavlovian conditioning on reproductive fitness in a sperm-competition situation. Typically, two males mating with the same female in immediate succession sire similar numbers of offspring. In a study with domesticated quail (Coturnix japonica), we increased paternity success by presenting a Pavlovian signal that permitted one of two competing males to predict copulatory opportunity. Using microsatellite-based DNA fingerprinting, we found that signaled males sired 72% of the offspring when competing with control males, and this effect was independent of copulation order. In the absence of Pavlovian conditioning, rates of fertilization were not significantly different for two males that copulated with the same female. These findings demonstrate that Pavlovian conditioning contributes to reproductive fitness and suggest that individual past experience can bias genetic transmission and the evolutionary changes that result from sexual competition. 相似文献
192.
Duckworth AL Peterson C Matthews MD Kelly DR 《Journal of personality and social psychology》2007,92(6):1087-1101
The importance of intellectual talent to achievement in all professional domains is well established, but less is known about other individual differences that predict success. The authors tested the importance of 1 noncognitive trait: grit. Defined as perseverance and passion for long-term goals, grit accounted for an average of 4% of the variance in success outcomes, including educational attainment among 2 samples of adults (N=1,545 and N=690), grade point average among Ivy League undergraduates (N=138), retention in 2 classes of United States Military Academy, West Point, cadets (N=1,218 and N=1,308), and ranking in the National Spelling Bee (N=175). Grit did not relate positively to IQ but was highly correlated with Big Five Conscientiousness. Grit nonetheless demonstrated incremental predictive validity of success measures over and beyond IQ and conscientiousness. Collectively, these findings suggest that the achievement of difficult goals entails not only talent but also the sustained and focused application of talent over time. 相似文献
193.
Despite the substantial interest in memory for complex pictorial stimuli, there has been virtually no research comparing memory
for static scenes with that for their moving counterparts. We report that both monochrome and color moving images are better
remembered than static versions of the same stimuli at retention intervals up to one month. When participants studied a sequence
of still images, recognition performance was the same as that for single static images. These results are discussed within
a theoretical framework which draws upon previous studies of scene memory, face recognition, and representational momentum. 相似文献
194.
Natasha B. Schultz Gerald Matthews Joel S. Warm David A. Washburn 《Behavior research methods》2009,41(3):593-597
The purpose of this study was to examine the relationship between changes in cerebral blood-flow velocity and performance
on a speeded shoot/don’t-shoot task. Brain activity as indicated by cerebral blood-flow velocity (hemovelocity) was recorded
using the transcranial Doppler ultrasonography. A shoot/don’t-shoot decisionmaking task presented participants with threat/nonthreat
stimuli in the form of bull’s-eye images of various colors. Participants were required to shoot threat targets using a laser-modified
handgun. Results support a vigilance decrement in both the performance measures and hemovelocity. Performance, as measured
by reaction time, number of hits, and marksmanship, decreased across the length of the vigil. Hemovelocity slowed across the
left and right hemispheres as the task progressed, and hemovelocity was slower in the right hemisphere than in the left hemisphere. 相似文献
195.
Explaining new ideas to oneself can promote learning and transfer, but questions remain about how to maximize the pedagogical value of self-explanations. This study investigated how type of instruction affected self-explanation quality and subsequent learning outcomes for second- through fifth-grade children learning to solve mathematical equivalence problems (e.g., 7 + 3 + 9 = 7 + _). Experiment 1 varied whether instruction was conceptual or procedural in nature (n = 40), and Experiment 2 varied whether children were prompted to self-explain after conceptual instruction (n = 48). Conceptual instruction led to higher quality explanations, greater conceptual knowledge, and similar procedural knowledge compared with procedural instruction. No effect was found for self-explanation prompts. Conceptual instruction can be more efficient than procedural instruction and may make self-explanation prompts unnecessary. 相似文献
196.
Thomas K. Kelemen Samuel H. Matthews Xin-an Zhang Bret H. Bradley Huihua Liu 《Journal of applied social psychology》2020,50(9):501-511
Teams in organizations are becoming more gender diverse as women continue to participate more in the workforce than ever before. Prior theory and research indicate that the characteristics of the team influence whether gender diversity in a team is an asset or a detriment. As such, this research explores a contingency model of the relation between gender diversity and team performance and looks to understand conditions that make this relation positive or negative. Specifically, we examine how leader vision communication (i.e., visionary leadership) affects the relation between gender diversity and team performance. Results from a sample of 595 full-time employees across 106 teams in China indicate that leader vision communication moderates the relation between gender diversity and team performance such that when leader vision communication is low gender diversity decreases team performance and when leader vision communication is high gender diversity has no significant relation with team performance. We also test whether team tenure changes this relationship. Our results suggest that gender diversity improves team performance when both leader vision communication and team tenure are high. The findings in our sample demonstrate that gender diversity can help teams enhance performance, but only when the conditions are right for gender-diverse teams to flourish. 相似文献
197.
Clifford W. Brooks Charles O. Matthews 《Journal of Addictions & Offender Counseling》2000,21(1):23-33
This study explored the relationship between scores on the Spiritual Well‐Being Scale and subscales from the Rokeach Value Survey and the Personal Orientation Inventory of substance abuse counselors in the Commonwealth of Virginia. This study also examined the impact of counselors' spiritual well‐being on the spiritual well‐being of patients in their clinical care. The results indicated that the values of wisdom and loving from the Rokeach Value Survey and self‐acceptance from the Personal Orientation Inventory accounted for approximately half of the spiritual well‐being variance. These variables could be used as indicators in the supervisory process, could help promote substance abuse counselors' spiritual well‐being, and could educate counselors on burnout prevention. Follow‐up findings indicated a statistically significant change score on patients' pretest and posttest scores on the Spiritual Well‐Being Scale, indicating an increase in patients' spiritual wellbeing while in inpatient addiction treatment. 相似文献
198.
Recommendations for Telephone Counseling 总被引:2,自引:0,他引:2
199.
Recent research in numerical cognition has begun to systematically detail the ability of humans and nonhuman animals to perceive the magnitudes of nonsymbolic ratios. These relationally defined analogs to rational numbers offer new potential insights into the nature of human numerical processing. However, research into their similarities with and connections to symbolic numbers remains in its infancy. The current research aims to further explore these similarities by investigating whether the magnitudes of nonsymbolic ratios are associated with space just as symbolic numbers are. In two experiments, we found that responses were faster on the left for smaller nonsymbolic ratio magnitudes and faster on the right for larger nonsymbolic ratio magnitudes. These results further elucidate the nature of nonsymbolic ratio processing, extending the literature of spatial–numerical associations to nonsymbolic relative magnitudes. We discuss potential implications of these findings for theories of human magnitude processing in general and how this general processing relates to numerical processing. 相似文献
200.
Suicidality,Self‐Harm,and Body Dissatisfaction in Transgender Adolescents and Emerging Adults with Gender Dysphoria
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Claire M. Peterson PhD Abigail Matthews PhD Emily Copps‐Smith MA Lee Ann Conard RPh DO MPH 《Suicide & life-threatening behavior》2017,47(4):475-482
Prevalence of suicide attempts, self‐injurious behaviors, and associated psychosocial factors were examined in a clinical sample of transgender (TG) adolescents and emerging adults (n = 96). Twenty‐seven (30.3%) TG youth reported a history of at least one suicide attempt and 40 (41.8%) reported a history of self‐injurious behaviors. There was a higher frequency of suicide attempts in TG youth with a desire for weight change, and more female‐to‐male youth reported a history of suicide attempts and self‐harm behaviors than male‐to‐female youth. Findings indicate that this population is at a high risk for psychiatric comorbidities and life‐threatening behaviors. 相似文献