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1.
Visibility of an afterimage has been measured for a single rectangular bar on its own and in the presence of a second bar. Visibility of each bar is increased if the two bars are in the same orientation and closer than 1 deg (this effect being called “facilitation”) and is decreased if the bars are in different orientations (this effect being called “inhibition”). These interactions also depend on the relative size of the bars. If a pattern of two bars is viewed dichoptically, rivalry between the bars occurs causing a mutual decrease in visibility. The rivalry effect and the orientation-specific effects discussed above are additive in the dichoptic viewing condition. The orientation-specific effects have been likened to those found in other psychophysical studies of angle detection.  相似文献   

2.
Discriminability of voice onset time was determined for four naive Ss in order to evaluate the relative efficiency of a testing procedure which utilized confidence ratings along with the conventional oddity task. Ss rated their judgments on oddity trials as “very very sure,” “somewhat sure,” or “just guessing.” Each S’s discrimination scores were given weights according to his ratings, yielding functions that were compared with those computed using unweighted percent correct scores. The confidence-rating technique produced readily interpretable results with about one-third as many judgments as are needed when the conventional procedure is used. Possible problems with the interpretation of the functions and the generalizability of the technique are discussed.  相似文献   

3.
Theoretical analyses of pictorial perception have concentrated on the consequences of conflicting flatness and depth information in pictures, but have failed to consider the perceptual effects of the truncation of the visual field attendant on any pictorial display. The importance of this variable both for methods of testing pictorial information and for theory building was demonstrated. Under four different viewing conditions, adults were asked to scale the size and distance of five isoceles triangles at five different distances. The four conditions were unobstructed static monocular view, peephole view, view through a rectangular frame, and view of all the stimuli photographed in a slide. The slopes of the peephole, truncation, and slide conditions’ scaling functions were all significantly smaller than the slope of the untruncated Monocular condition, and the Y-intercepts were all greater. A decrease in over-constancy in the size functions indicated a similar effect for all three truncated conditions. Results are interpreted as supporting the hypothesis that truncation of the visual field, both in pictures and in peephole views of the real world, causes a frontal shift in the localization of the visible field, with a resultant compression of perceived size and distance.  相似文献   

4.
The factorial structure of the Inventory of Callous-Unemotional Traits (ICU; Frick 2004) has been inconsistent across previous studies using different rater versions (self-report, parent, teacher) and versions in different languages applied to both clinical and nonreferred samples predominantly of adolescents. The present study examined the factorial structure of the parent-report version of the ICU in a clinical sample of boys aged 6–12 years with Oppositional Defiant Disorder/Conduct Disorder (n?=?131) using confirmatory factor analysis (CFA) and exploratory factor analysis (EFA). Results from the CFA supported previous findings, but even the preferred model with three independent factors (Callousness, Uncaring, and Unemotional) showed inadequate model fit. Subsequent EFA revealed a three-factor model consisting of two new subscales (Callousness/Lack of Guilt or Remorse, Unconcerned about Performance) and the original subscale Unemotional. Internal consistencies of the three subscales and total score were satisfactory, and intercorrelations of the subscales were weak, except for a moderate correlation between the subscales Callousness/Lack of Guilt or Remorse and Unconcerned about Performance. The corresponding subscales of the original and new versions were highly correlated. As expected, the ICU subscale Callousness/Lack of Guilt or Remorse showed associations with other measures of aggressive and oppositional behavior. The other two ICU subscales were not associated with aggression or oppositional/antisocial behavior, but Unconcerned about Performance correlated with a measure of attention problems and Unemotional correlated with the internalizing problem withdrawn. The implications of these findings are discussed, especially as a callous unemotional specifier for the diagnosis of Conduct Disorder is included in DSM-5.  相似文献   

5.
The brightness of white light and the loudness of white noise were measured by magnitude estimation for sets of stimuli that varied in intensity and duration. Brightness and loudness both grow as power functions of duration up to a critical duration, beyond which apparent magnitude is essentially independent of duration. For brightness, the critical duration decreases with increasing intensity, but for loudness the critical duration is nearly constant at about 150 msec. Loudness and brightness also grow as power functions of intensity. The loudness exponent is the same for all durations, but the brightness exponent is about half again as large for short durations as for long. The psychophysical power functions were used to generate equal-loudness and equal-brightness functions, which specify the combinations of intensity E and duration T that produce the same apparent magnitude. Below the critical duration ET equals k for equal brightness, and ETa equals k for equal loudness. The value a is about 0.7 for threshold and about 1.25 for supraliminal loudness.  相似文献   

6.
The brightness of white light and the loudness of white noise were measured by magnitude estimation for sets of stimuli that varied in intensity and duration. Brightness and loudness both grow as power functions of duration up to a critical duration, beyond which apparent magnitude is essentially independent of duration. For brightness, the critical duration decreases with increasing intensity, but for loudness the critical duration is nearly constant at about 150 msec. Loudness and brightness also grow as power functions of intensity. The loudness exponent is the same for all durations, but the brightness exponent is about half again as large for short durations as for long. The psychophysical power functions were used to generate equal-loudness and equal-brightness functions, which specify the combinations of intensity E and duration T that produce the same apparent magnitude. Below the critical duration ET equals k for equal brightness, and ETa equa Is k for equal loudness. The value a is about 0.7 for threshold and about 1.25 for supraliminal loudness.  相似文献   

7.
David Clarke 《Philosophia》2014,42(3):571-591
Most works about the philosophy of Martin Heidegger either disregard Heidegger’s attachment to National Socialism or assume the ‘minimalist’ view that his attachment was a brief political aberration of no consequence for his philosophy. This paper contends that the minimalist view is not only factually wrong but also that its assumption promotes methodological errors and poor philosophy. To assess this contention we examine two important texts from one of the more fertile fields in current philosophy: Jeff Malpas’s Heidegger’s Topology: Being, Place, World (2006) and Heidegger and the Thinking of Place (2012). Malpas claims that Heidegger’s rejection of National Socialism spurred, or was concomitant with, new directions in his philosophy. These claims are wrong. The paper concludes that any work about Heidegger’s philosophy must first acknowledge and understand his enduring attachment to National Socialism.  相似文献   

8.
A total of 48 educable mentally retarded (EMR) and emotionally handicapped (EH) children ( \(\overline {CA} \) =137.7 months) were pretested on Coopersmith's Self-Esteem Inventory (SEI), Nowicki-Strickland's Locus of Control Scale for Children (LCSC), and 3 behavioral measures: (1) risk-taking, (2) a chance/skill task, and (3) delay of gratification. One group of 12 children from each population was then exposed to either a self-confident or a control model. After exposure, Ss were given an opportunity to perform successfully on an ambiguous task and answer questions about their success, and were readministered the SEI, LCSC, and 3 behavioral choices. Correlational analyses of pretreatment data revealed significant relationships between defensiveness and LCSC, SEI, and delay of gratification and a near-significant relationship between LCSC and SEI. EMR and EH Ss were both lower on self-esteem than the general population, while EMR Ss were more defensive, more external, and less likely to delay gratification than EH Ss. Both treated groups matched more of the behavioral choices than the control groups, while only treated EH Ss were more likely to attribute their success to internal causes. It was concluded that EMR and EH children differ in self-concept development and that future attempts to modify self-concept should include greater modeling exposure as well as increased opportunity for performance with its resultant feedback.  相似文献   

9.
A mixed-modality continuous recognition task followed by a final recognition test after 0 h, 4 h, 1 day, or 7 days was administered to third- and fourth-grade children and adults. Subjects gave recognition responses and reported presentation modalities. Forgetting rates for both words and input mode were invariant with age. The decay functions for presentation modality were affected, however, by the initial input mode, with modality identification declining more rapidly for words heard first than for words seen first. Information about whether a word was seen or heard remained in memory for at least 4 h. The results demonstrate that long-term-memory representations contain a great deal of information about input mode and suggest that the theoretical distinction between automatic and effortful processing may be a useful one.  相似文献   

10.
Susan Moore  Jennifer Boldero 《Sex roles》1991,25(9-10):521-536
This study concerns the relationship between friendship variables and adolescent psychosocial development, in particular identity and psychosocial intimacy as envisaged by E. Erikson [(1950), Childhood and Society, New York: Norton; (1968), Identity: Youth and Crisis, New York: Norton]. Two hundred and twenty-three secondary school and college students were surveyed regarding friendship networks, beliefs about friendship, functions of friendship in general, and aspects of a best friendship. Intimacy and identity measures were obtained using the Erikson Psychosocial Stage Inventory [D. Rosenthal, R. Gurney, and S. Moore (1981), “From Trust to Intimacy: A New Measure for Examining Erikson's Stages of Psychosocial Development,” Journal of Youth and Adolescence, Vol. 10, pp. 525–537]. Four developmental style groups (Dual High Scorers, High Identity, High Intimacy, and Dual Low Scorers) were formed from these measures. There were no differences between the sexes in their choice of developmental style. Those in the high-identity-high-intimacy and the high-identity-low-intimacy groups were more satisfied with their friendships, which appeared affectively richer. Sex differences showed that while friendship variables were more strongly associated with development for boys, girls viewed their relationships as closer and ascribed more importance to this closeness.  相似文献   

11.
Two scaling models are investigated, each of which includes parameters which reflect variation in the use of judgmental categories. In one model, response categories are represented as successive intervals on an underlying sensory continuum. In the other, they are represented as points. Psychophysical scales based upon either of these models are invariant up to a linear transformation when the range of stimulus magnitudes is manipulated. Successive intervals scale values obtained from magnitude estimates are also linearly invariant with changes in stimulus range. Similarities in the proximity functions for the two judgment models are examined.  相似文献   

12.
The present investigation is concerned with determining whether or not differences in the reaction times exist in a human subject’s responses to 6 different wavelengths equated at 5 levels of luminance. The heterochromatic matching was done by the method of flicker photometry and checked by the method of direct comparison. Simple reaction time, the time interval starting with the presentation of a visual stimulus and terminating in a manual response, was used as the method of determining the latencies for the establishment of equal sensory effects for the different wavelengths. Monocular viewing of the stimuli was used by two subjects and reaction times are determined over a luminance range of 5.2 log units around a central value of I millilambert. The results indicated that simple reaction time is inversely related to stimulus luminance. There were no differences in the reaction times to the different wavelengths at the four highest luminance levels; at the lowest luminance level, the wave-lengths fan out in a manner that is in line with the classical data of vision. In other words, the visual functions obtained with simple reaction time parallel certain well-known visual functions in intensity discrimination, flicker and visual acutty-the results may be accounted for by the Duplicity Theory of vision.  相似文献   

13.
Lauren F. Pfister 《Dao》2014,13(3):395-401
In this review of Fan Ruiping’s book, I am concerned first of all about how representative his account of Confucianism/Ruism is in relationship to the multiform traditions associated with that teaching through more than two thousand years of its existence. Fan emphasizes pre-imperial forms of Confucian traditions, but neglects many alternatives from later sources. Secondly, his account of “familism” lends itself to questions related to the problem of revenge that is associated with traditional Confucianism. This raises further ethical doubts about the effectiveness of his reconstructed Confucianism within contemporary Chinese society. Finally, his “familism” appears to focus on extended family structures, but whether this is suitable and relevant for the structures of modern family transformations in mainland China is questioned.  相似文献   

14.
The present study investigated the effects of cues on subjects’ abilities to retrieve the names of famous faces that they had previously been unable to recall. In Experiment 1 subjects were presented with a second photograph of the celebrity, or biographical information about the celebrity, or the celebrity’s initials. Each type of cue produced a quite different pattern of recall. Biographical information was least likely to elicit the name when the subject already knew the celebrity’s occupation, and most likely when subjects found the face familiar only. Conversely, initials were more likely to elicit the name when the occupation was already known than when the face was at first found unfamiliar or familiar only. Rather surprisingly, no significant differences were observed when a new photograph was used as a cue. In Experiment 2, the effects of a new photograph were compared with a condition in which the same photograph was presented twice. A new photograph was beneficial when subjects had previously found the face unfamiliar and when they found the face familiar only, but not when they knew the occupation. It is argued that these, as well as other aspects of the results, generally support the view that successive, but distinct stages are involved in face recognition, consistent with the model put forward by Bruce and Young (1986).  相似文献   

15.
Cutting and Rosner (Perception & Psychophysics, 1974,16, 564–570) reported that two acoustic nonspeech continua varying in rise time were categorically perceived. We have already shown (Rosen & Howell,Perception & Psychophysics, 1981,30, 156–168) that the reason their sawtooth continuum was perceived in such a way, and in particular why it exhibited a midcontinuum peak in the discrimination function, was entirely due to the stimuli not having the intended rise times. The other nonspeech continuum that varied in rise time and was reported to be categorically perceived used a sinusoidal carrier. Although the labeling functions obtained were not as sharp as those obtained with sawtooth stimuli, the characteristic midcontinuum discrimination peak was found. We generated such a set of sinusoidal stimuli and found no evidence of categorical perception. Just as we have previously found for sawtooth stimuli, discrimination is best at the short rise-time end of the continuum and decreases monotonically with increasing rise time.  相似文献   

16.
Recent evidence has suggested that posttraumatic stress disorder (PTSD) is associated with alterations in prefrontal-cortex-dependent cognitive processes (e.g., working memory, cognitive control). However, it remains unclear whether these cognitive dysfunctions are related to PTSD symptomatology or trauma exposure. Furthermore, regarding cognitive control, research has only focused on the integrity of selected control functions, but not their dynamic regulation in response to changing environmental demands. Therefore, the present study investigated dynamic variations in interference control, in addition to overall interference susceptibility and working memory (WM) performance in matched groups of 24 PTSD patients and 26 traumatized and 30 nontraumatized healthy controls. The Simon task was used to measure overall interference susceptibility and the flexible adjustment of cognitive control, on the basis of the occurrence of response conflicts (conflict adaptation effect). WM performance was assessed with the forward and backward digit span tasks. Since we have previously shown that trauma exposure per se is associated with reduced hair cortisol concentrations (HCC), we further explored whether PTSD/trauma-related cognitive alterations are related to HCC in proximal 3-cm hair segments. The results revealed that PTSD patients and traumatized controls showed significantly more pronounced conflict adaptation effects than nontraumatized controls. Moreover, the conflict adaptation effect was positively related to the number of lifetime traumatic events and the frequency of traumatization. The groups did not differ in overall interference susceptibility or WM performance. Exploratory analyses revealed no association between HCC and the observed cognitive differences. These results suggest that context-driven control adjustments constitute a sensitive correlate of trauma exposure, irrespective of PTSD.  相似文献   

17.
Children with ADHD often demonstrate sudden and intense shifts in both positive and negative affect. This study examined the role of diagnostic status on emotional impulsivity in children utilizing ecological momentary assessment (EMA). Parents of 64 8–12 year old children (15 ADHD-only; 27 ADHD-comorbid; 22 control) completed a diagnostic structured interview and then an EMA protocol, rating the child’s affect thrice daily for 28 days. Analysis of covariance (ANCOVA) suggested that children with ADHD and a comorbid disorder demonstrated significantly more EMA-derived emotional impulsivity than children with ADHD only and control children. No difference was found between children with ADHD only and control children. This study suggested that children with ADHD demonstrate significantly higher levels of emotional impulsivity than control children only in the presence of a comorbid disorder.  相似文献   

18.
The Perceived Competence and Acceptance Scale for Younger Children (PCS) was examined in the course of an epidemiological survey of psychological disorders in children. Eighty-three children, aged 6 and 7 years, were administered several measures including the WISC-R, the WRAT, the Lie Scale for Children, and the PCS. Teachers provided ratings from a parallel version of the PCS and reported on the behavioral and social development of each child through the Child Behavior Checklist. Investigation of the psychometric characteristics of the PCS substantially replicates findings reported by its developers. The size and direction of correlations among the cognitive competence subscale of the PCS, achievement measures, and the Lie Scale indicate that children tend to more accurately report about this domain than others included in the PCS. Children who reported atypically high or low PCS levels were not found to differ from the remainder of the sample on two clinical indices. Children who tended to exaggerate PCS levels, as compared to teacher ratings, had significantly more behavior problems in school and were seen by two observers as more apt to be currently maladjusted.  相似文献   

19.
Irrational responses to patient with AIDS, particularly in regards to the transmissibility of HIV (human immunodeficiency virus) are examined from an historical and psychosocial perspective. Although these responses are similar to those reported from past epidemics such as plague and leprosy, they are in direct conflict with our current level of understanding regarding the transmission of this virus. Their genesis may relate to the human penchant to react to illness metaphorically. In order to allay effectively public concern about the transmissibility of AIDS, it is essential to recognize the metaphor associated with venereal disease in general and AIDS in particular.  相似文献   

20.
With data gathered from 96 female college students, intercorrelations were examined among self-concept ratings of masculinity and femininity, and scales from two personality-trait measures of masculinity and femininity—the Adjective Check List (ACL) and the Extended Personal Attributes Questionnaire (EPAQ). The sign and magnitude of the correlations between pairs of measures were successfully predicted on the basis of the congruence between measures of both the gender relevance and the desirability of the self-rated traits comprising each measure. The desirability of the trait items employed in self-report personality-trait scales of masculinity and femininity evidently introduces methods variance that can either inhibit or potentiate the relationship with other scales composed predominantly of either desirable or undesirable traits. When balanced for the desirability of trait items, personality-trait scores of masculinity and femininity were substantially inversely correlated with each other, and only marginally correlated with self-concept ratings of masculinity and femininity, but these correlations remained in the anticipated directions. This result is consistent with the findings of Pedhazur and Tetenbaum (“Bem Sex Role Inventory: A Theoretical and Methodological Critique,” Journal of Personality and Social Psychology, 1979, 37, 996–1016), and supports Spence's (Masculinity, Femininity, and Gender-Related Traits: A Conceptual Analysis and Critique of Current Research,” In B. A. Maher and W. B. Maher (Eds.), Progress in Experimental Research, Vol. XIII, Normal Personality Processes, New York: Academic Press, 1984) position that personality traits should be viewed as only one of many possible referents for gender/sex role identity.  相似文献   

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