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61.
62.
Casey Gamboni Dumayi Gutierrez Heather Morgan-Sowada 《The American journal of family therapy》2018,46(1):96-105
Research has shown that sexual orientation change efforts results in more mental health damages than positive outcomes; yet a recent study found that 19.4% of mental health practitioners believe it is ethical to practice sexual orientation change efforts. The purpose of this paper is to highlight existing literature on sexual orientation change efforts, showcase mental health professional organization's stances on ethically prohibiting versus discouraging sexual orientation change efforts, and propose suggestions and learning objectives to mental health organizations. By doing so, we hope all mental health professional organizations enforce a clear ethical code against the practice of sexual orientation change efforts. 相似文献
63.
Neal Miller Jennifer Wyatt Laura Baylot Casey J. Brian Smith 《Behavioral Interventions》2018,33(1):3-12
Many children diagnosed with autism spectrum disorders have difficulty making appropriate eye contact and engaging in joint attention. The current study evaluated a computer‐assisted instruction package (pairing visual stimuli with vocal stimuli) as a novel treatment to improve the eye gaze accuracy in 3 elementary school children with autism. The researchers measured the latency from a recorded verbal stimulus to the students making eye contact with pictures of familiar individuals displayed on a computer screen, and the duration for which eye gaze on the stimulus was maintained. An automated infrared camera system for measuring eye gaze was utilized that eliminated the need for an instructor to make subjective judgments regarding participants' eye gaze. For all three participants, duration of eye contact increased, and latency to responding decreased following exposure to the computer‐assisted instruction. The implications of these findings for the treatment of individuals with autism are discussed, along with suggestions for future research on the topic. 相似文献
64.
Isolated words enhance statistical language learning in infancy 总被引:1,自引:0,他引:1
Infants are adept at tracking statistical regularities to identify word boundaries in pause-free speech. However, researchers have questioned the relevance of statistical learning mechanisms to language acquisition, since previous studies have used simplified artificial languages that ignore the variability of real language input. The experiments reported here embraced a key dimension of variability in infant-directed speech. English-learning infants (8-10 months) listened briefly to natural Italian speech that contained either fluent speech only or a combination of fluent speech and single-word utterances. Listening times revealed successful learning of the statistical properties of target words only when words appeared both in fluent speech and in isolation; brief exposure to fluent speech alone was not sufficient to facilitate detection of the words' statistical properties. This investigation suggests that statistical learning mechanisms actually benefit from variability in utterance length, and provides the first evidence that isolated words and longer utterances act in concert to support infant word segmentation. 相似文献
65.
This study examines the effects of physical attractiveness and aggression on popularity among high school students. Previous
work has found positive relationships between aggression and popularity and physical attractiveness and popularity. The current
study goes beyond this work by examining the interactive effects of physical attractiveness and aggression on popularity.
Controlling for race and gender, the results indicate that attractive students are seen as more physically and relationally
aggressive than those who are less attractive. We also found that those who are both physically attractive and aggressive
are perceived to be more popular than those without such characteristics. However, the same interaction showed the opposite
effect when predicting sociometric popularity instead of perceived popularity. These results contribute to the understanding
of the differences between those who are well-liked (sociometric popularity) and those who are socially visible (perceived
popularity), and the unique predictors of these two dimensions of status in the peer group. 相似文献
66.
R A Dykman P C Loizou P T Ackerman P H Casey W B McPherson 《Integrative Physiological and Behavioral Science》2000,35(4):284-297
Sixty-five subjects, ages 8 to 12, participated in a visual electrophysiological study. Twenty-two of the subjects had received a diagnosis of nonorganic failure-to-thrive (FTT) before the age of three. The remaining 43 subjects had no history of FTT and served as Controls. IQs were obtained with the abbreviated WISC-III, and the Controls were split into two groups, LO IQ and HI IQ, to provide a LO IQ Control group with an average IQ equivalent to the FTT group. Event-related brain potentials (ERPs) were recorded from five scalp locations during a cued continuous performance task (CPT). Subjects had to press a button every time they saw the letter "X" following the letter "A" (50 targets out of 400 stimuli). During the CPT, the FTT subjects made marginally more errors of omission to targets than the LO IQ Control group and significantly more errors of omission than the HI IQ Control subjects. The groups did not differ significantly on errors of commission (false alarms) or reaction times to targets. ERP averages revealed a group difference in amplitude in a late slow wave for the 50 non-X stimuli (false targets) that followed the letter A. This difference was greatest over frontal sites, where the FTT group had a more negative going slow wave than each control group. Late frontal negativity to No Go stimuli has been linked with post-decisional processing, notably in young children. Thus, the FTT subjects may have less efficient inhibitory processes, reflected by additional late frontal activation. 相似文献
67.
With excitement surrounding the publication of the human genome, scientists have set out to uncover the functions of specific
genes. This special issue on Genes, Brain, and Behavior attempts to present research strategies that connect major avenues
of genetic research across disciplines. For example, anatomical information provided by brain imaging can serve as a convenient
link between anatomical abnormalities seen in knockout/transgenic mouse models and abnormal patterns of brain activity seen
in certain patient populations. Identifying genetic risk factors for disorders with carefully designed cognitive assays is
another strategy that has gained increasing attention. These approaches are being combined with behavioral studies of mouse
models of gene function. Alone, each of these approaches provides limited information on gene function in complex human behavior,
but together, they are forming bridges between animal models and human psychiatric disorders. 相似文献
68.
The effect of feedback sign on task performance depends on self-concept discrepancies 总被引:1,自引:0,他引:1
Control theories claim that information about performance is often used by multiple goal systems. A proposition tested here was that performance information can create discrepancies in self-concept goals, directing cognitive resources away from the task goal system. To manipulate performance information, 160 undergraduates were given false positive or false negative normative feedback while working on a task that did or did not require substantial cognitive resources. Half of the participants were then given an opportunity to reaffirm their self-concepts following feedback, whereas half were not. Feedback sign positively related to performance only for those working on the cognitively intense task and not given a chance to reaffirm. Otherwise, feedback sign was negatively related to performance, albeit weakly. 相似文献
69.
Developmental cognitive neuroscience: progress and potential 总被引:7,自引:0,他引:7
Developmental cognitive neuroscience is an evolving field that investigates the relations between neural and cognitive development. Lying at the intersection of diverse disciplines, work in this area promises to shed light on classic developmental questions, mechanisms subserving developmental change, diagnosis and treatment of developmental disorders, and cognitive and neuroscientific topics traditionally considered outside the domain of development. Fundamental questions include: What are the interrelations between developmental changes in the brain (e.g. in connectivity, chemistry, morphology) and developmental changes in children's behavior and cognitive abilities (e.g. representational complexity, ability to sustain selective attention, speed of processing)? Why, and how, is learning enhanced during certain periods in development? How is our knowledge organized, and how does this change with development? We discuss preliminary investigations of such questions and directions for future work. 相似文献
70.
Davidson MC Thomas KM Casey BJ 《Mental retardation and developmental disabilities research reviews》2003,9(3):161-167
Advancements in magnetic imaging techniques have revolutionized our ability to study the developing human brain in vivo. The ability to noninvasively image both anatomy and function in healthy volunteers, including young children, has already enhanced our understanding of brain and behavior relations. The application of these techniques to developmental research offers the opportunity to further explore these relationships and allows us to ask questions about where, when and how cognitive abilities develop in relation to changes in underlying brain systems. It is also possible to explore the contributions of maturation versus learning in the development of these abilities through cross-sectional and longitudinal research involving training and intervention procedures. Current imaging methodologies, in conjunction with new and rapidly evolving techniques, hold the promise of even greater insights into developmental issues in the near future. These methodologies and their application to development and learning are discussed in the current paper. 相似文献