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911.
Thirty males and 30 females who volunteered for a program to increase dating skills were randomly assigned to a treatment group of six practice dates plus feedback, a treatment group of six practice dates only, or a delayed treatment control group. Within subject-specified constraints of height, age, race, and distance from campus, a computer randomly matched opposite sexed subjects for the six practice dates, each date with a different subject. After each practice date in the feedback condition, subjects completed forms calling for primarily positive comments about the partner. Forms were later exchanged via the experimenter. Outcome was assessed by self-report, self-monitoring, behavioral, and peer rating measures. Results indicated the superiority of treatment conditions over the control condition. Some evidence indicated superiority of the no feedback condition over the feedback condition. Evidence of maintenance of changes over a three-month follow-up period is provided.  相似文献   
912.
The study examined how well subjects were able to ignore the presence of irrelevant stimulus information as a function of age. Children aged 6, 9, and 12, as well as adult subjects sorted cards with one binary dimension relevant, and zero, one, or two dimensions irrelevant. Speed of classification was measured. Significant effects of age, sex, number of irrelevant dimensions, and relevant dimension on speed of classification were obtained, as well as a number of interactions of these variables. The most important finding was that the presence of irrelevant information interfered with the performance of the task by child subjects and that the magnitude of the interference declined with age. The results were interpreted as implying that developmental trends in attention may be most clearly demonstrated in tasks which require speeded processing of stimuli. The ease of administration of the speeded classification task, coupled with the clear developmental trends obtained, recommend this paradigm as a useful one with which to study the development of selective attention.  相似文献   
913.
914.
How effective are the Frostig training program and corrective reading instruction for improving the reading and visual-motor skills of pupils who possess deficiencies in both areas? Each of the three teachers worked each school day for sixteen weeks with the subjects of the two treatment groups plus a play placebo group. On the basis of the results of this study there is little, if any, support for the use of the Frostig program or corrective reading as treatments to improve the reading skills of children considered to possess a visual-motor problem. Due to the performances of the attention-placebo group, it is logical to hypothesize that improvements of the remedial groups are more a function of personal attention than the unique remedial powers of the two treatments. Consideration should be given to the optimal number of Frostig sessions as well as to the possibility of a ceiling effect of the Frostig program. Eight weeks of training would appear to be the maximum time before regression or improvement takes place.  相似文献   
915.
The authors take up Amy Allen's suggestion that while Foucault's work may be able to support a certain type of self‐critique and self‐development, it does not permit the kind of interpersonal relations that are necessary for the development of intersubjective meaning in struggles against imposed identities. The authors contend that for Foucault, relations of ‘truth’ play an important constitutive role in subjectivities, and that understanding the ‘politics of ourselves’ in the context of this truth shows not only an openness to meaningful interpersonal relations, but also that these relations are capable of generating the conceptual and normative resources necessary for resisting socially imposed subjectivities. The authors present such an account of intersubjective relations based on Foucault's discussion of parrhesia, and develop a model of collaborative political action that addresses the criticisms raised.  相似文献   
916.
Carroll L  Anderson R 《Adolescence》2002,37(147):627-637
Postmodern perspectives of body piercing and tattooing interpret these as signifiers of the self and attempts to attain mastery and control over the body in an age of increasing alienation. In this exploratory study, 79 adolescent females, ages 15 to 18 (M = 16.08, SD = 1.36), completed the Coopersmith Self-Esteem Inventory (SEI; Coopersmith, 1981), the Beck Depression Inventory (BDI; Beck, 1978), the Body Investment Scale (BIS; Orbach & Mikulincer, 1998), and the State-Trait Anger Expression Inventory (STAXI-2; Spielberger, 1996). Analyses revealed that body piercings and tattoos were significantly correlated with trait anger (Angry Reaction subscale scores). A multiple regression analysis indicated that three of the dependent variables (Trait Anger-Reaction, BDI, and Feeling subscale of the BIS) were predictors of the total number of body piercings and tattoos.  相似文献   
917.
Behavioral manipulations such as housing in an enriched environment have been shown to increase brain weight and visual cortical thickness. The present study was designed to test whether skill learning or repetitive movements can alter the thickness of the motor cortex. One group of 6-mo-old Long-Evans female rats learned motor skills on an obstacle course that increased in difficulty over training and required balance and coordination. A second group ran voluntarily in exercise wheels attached to their home cage but had little opportunity for skill learning. The third group was handled daily but received no opportunity for learning or exercise. Each condition lasted 26–29 d. The skill-learning and exercise conditions had greater heart weight, and the exercise condition had greater adrenal gland weights than controls. The thickness of the motor cortex was measured in four coronal planes between −2.33 mm to −0.3 mm from bregma. Regions of interest that corresponded to published maps of forelimb and hind-limb representations were analyzed together. Rats in the skill-learning condition had significantly thicker medial cortical areas in the two anterior planes (−0.8 and −0.3 mm from bregma). These regions correspond to previously mapped hind-limb representations. The exercise group had greater thickness of the medial region at −0.8 mm from bregma. Cortical thickness in all conditions varied significantly along the medial to lateral axis. For both treatments, the effects were restricted to medial and anterior regions of interest rather than posterior or lateral regions of interest. The results indicate that robust exercise, in addition to skill learning, is capable of altering the thickness of the motor cortex, but that the effects are restricted rather than distributed within the regions studied.  相似文献   
918.
Models used to analyze cross-classifications of counts from psychological experiments must represent associations between multiple discrete variables and take into account attributes of stimuli, experimental conditions, or characteristics of subjects. The models must also lend themselves to psychological interpretations about underlying structures mediating the relationship between stimuli and responses. To meet these needs, the author extends the graphical latent variable models for nominal and/or ordinal data proposed by C. J. Anderson and J. K. Vermunt (2000) to situations in which dependencies between observed variables are not fully accounted for by the latent variables. The graphical models provide a unified framework for studying multivariate associations that include log-linear models and log-multiplicative association models as special cases.  相似文献   
919.
Conditioned flavor aversion was examined in Wistar-derived albino rats that were immersed in cold water for 0, 2.5, 5, or 10 min immediately following 10-min exposure to a.1% saccharin solution and given an intraperitoneal (i.p.) injection of 0.15 M lithium chloride (LiCl) either 90, 135, 180, or 225 min later. Cold water immersion for 2.5, 5, and 10 min led to body temperature decreases of approximately 4.5, 7, and 10 degrees C, respectively. Rats whose body temperatures were not reduced (0 min immersion) showed no saccharin aversion when the LiCl was delayed 90 min. Rats whose body temperatures were reduced 4.5, 7, and 10 degrees C displayed conditioned aversions at LiCl delays up to 135, 180, and 225 min, respectively. These results were interpreted in terms of a cold-induced slowing of a biochemical clock that may uniquely govern specific timing processes involved in associative learning over long delays, such as long-trace conditioned flavor aversion, learned safety, and certain types of learning that involve an extensive time lapse (e.g., extinction of fear).  相似文献   
920.
The purpose of this study was to examine differences between children who do (CWS) and children who do not stutter (CWNS) on standardized tests of receptive/expressive language and receptive vocabulary. Subjects were 16 boys and 4 girls who stutter (mean age = 46.80 months) and 16 boys and 4 girls who do not stutter (mean age = 47.55 months). Each child was audio recorded during a loosely structured, 30-minute conversation with an adult. This conversational interaction was subsequently assessed to provide information pertinent to the child's frequency and type of speech disfluency. After completion of the adult-child conversational interaction, each child was administered and responded to standardized tests of syntactic, semantic, and phonological abilities and development. Results indicated that the difference between measures of receptive/expressive language and receptive vocabulary is significantly greater for CWS than CWNS; however, this difference between receptive/expressive language and receptive vocabulary scores was not significantly correlated with the overall stuttering frequency of CWS. Findings were taken to suggest that the semantic development of CWS may lag behind their syntactic development, a possible imbalance among components of the speech-language systems of CWS that may contribute to the difficulties they have establishing normal speech fluency. Research supported by an NIH grant (DC00523) to Vanderbilt University.  相似文献   
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