Editorial     

Dennis Atkinson 《The International Journal of Art & Design Education》2003,22(1):2-4

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Recognition of facial emotions among maltreated children with high rates of post-traumatic stress disorder     

Masten CL  Guyer AE  Hodgdon HB  McClure EB  Charney DS  Ernst M  Kaufman J  Pine DS  Monk CS 《Child abuse & neglect》2008,32(1):139-153

OBJECTIVE: The purpose of this study is to examine processing of facial emotions in a sample of maltreated children showing high rates of post-traumatic stress disorder (PTSD). Maltreatment during childhood has been associated independently with both atypical processing of emotion and the development of PTSD. However, research has provided little evidence indicating how high rates of PTSD might relate to maltreated children's processing of emotions. METHOD: Participants' reaction time and labeling of emotions were measured using a morphed facial emotion identification task. Participants included a diverse sample of maltreated children with and without PTSD and controls ranging in age from 8 to 15 years. Maltreated children had been removed from their homes and placed in state custody following experiences of maltreatment. Diagnoses of PTSD and other disorders were determined through combination of parent, child, and teacher reports. RESULTS: Maltreated children displayed faster reaction times than controls when labeling emotional facial expressions, and this result was most pronounced for fearful faces. Relative to children who were not maltreated, maltreated children both with and without PTSD showed enhanced response times when identifying fearful faces. There was no group difference in labeling of emotions when identifying different facial emotions. CONCLUSIONS: Maltreated children show heightened ability to identify fearful faces, evidenced by faster reaction times relative to controls. This association between maltreatment and atypical processing of emotion is independent of PTSD diagnosis.  相似文献   

BLIND MARKING AND SEX BIAS IN STUDENT ASSESSMENT     

Stephen E. Newstead  Ian Dennis 《Assessment & Evaluation in Higher Education》1990,15(2):132-139

Three studies are reported which investigated the existence of sex bias in the marking of undergraduate degrees. Study 1 failed to find any evidence that females were marked less extremely than males by second markers, as has been found in previous research. Study 2 found that marker disagreements were not resolved upwards more frequently for male candidates, again contradicting the results of some previous research. Study 3 failed to find any of the expected differences between an institution using blind marking and one using non‐blind procedures. In the light of this negative evidence and of the confusing picture presented by. previous research, it is concluded that there is little firm evidence for sex bias in marking. Despite this, it is likely that there will be increasing pressure to adopt blind marking in the future.  相似文献   

Degree Performance as a Function of Age,Gender, Prior Qualifications and Discipline Studied     

Sherria L. Hoskins  Stephen E. Newstead  Ian Dennis 《Assessment & Evaluation in Higher Education》1997,22(3):317-328

The computerised records of a large university were analysed in an attempt to determine which variables served as predictors of degree performance. Age was a powerful predictor: mature students gained better degrees on average than younger students; and mature students with non‐traditional qualifications obtained the best degrees of all. Gender, year of graduation, and type of qualification were weak predictors of performance, but degree classifications were found to differ significantly across disciplines. The results are broadly consistent with previous studies, and suggest that opening access to mature students and to those with non‐traditional qualifications has not led to any diminution of standards. However, variations between disciplines and, in national statistics, between different years, suggest that steps may need to be taken to standardise degree classifications.  相似文献   

Mapping Survey Data to the Mission and Strategic Plan: You Won't Believe What Happened Next!          下载免费PDF全文

Judith A. Ouimet  Kristin A. Hobson  Dennis P. Groth 《Assessment Update》2016,28(5):5-11

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Are “no-drug” cues discriminated during drug-discrimination training?     

Donald A. Overton  Dennis A. Merkle  Mark L. Hayes 《Learning & behavior》1983,11(3):295-301

Rats were trained in a two-lever operant chamber to discriminate the presence versus the absence of a drug. During drug sessions, the training procedure involved reinforcing presses on lever 1 with saccharin-sweetened water but not reinforcing presses on lever 2. During no-drug sessions, only presses on lever 2 were reinforced. After this discrimination was learned, each rat was trained to discriminate presence versus absence of a second drug. All rats learned this second discrimination. Finally, the rats were tested to determine whether they could still discriminate the first drug, as well as other pharmacologically related compounds; most rats could. Training drugs were phenobarbital 30–35, nicotine 0.4, amphetamine 0.4, cyproheptadine 7, phencyclidine 4, cyclazocine 1.5, fentanyl 0.04, and scopolamine 0.2 mg/kg. The results indicate that drug versus no-drug discrimination training does not disrupt discriminative control previously established with a different drug. When considered in combination with the results obtained during substitution tests conducted after drug-versus-no-drug training, the data suggest that, instead of discriminating drug cues versus no-drug cues, rats discriminate presence versus absence of particular drug cues.  相似文献   

Extinction and food-reinforced inhibition of conditioned salivation in dogs     

Dennis L. Herendeen  Martin M. Shapiro 《Learning & behavior》1975,3(2):103-106

The present experiment compared two methods of eliminating a classically conditioned response in dogs, extinction and reinforcement of nonsalivation, using both a within- and between-subjects experimental design. Eighteen dogs were trained for 16 days in Phase I, 16 days in Phase II, and 8 days in Phase III. In Phase I, each subject received classical conditioning training to two stimuli. In Phase II, Group 1 received extinction training to one stimulus and reinforcement of nonsalivation to the other stimulus. Group 2 received continued classical conditioning training to one stimulus and reinforcement on nonsalivation training to the other. Group 3 received continued classical conditioning training to one stimulus and extinction training to the other. In both the within- and between-subjects comparisons, responding to the stimulus associated with extinction was eliminated faster than responding to the stimulus associated with reinforcement of nonsalivation.  相似文献   

Microbial madness     

Hackett D 《New scientist (1971)》1984,104(1429):41

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Development of auditory event-related potentials in young children and relations to word-level reading abilities at age 8 years     

Espy KA  Molfese DL  Molfese VJ  Modglin A 《Annals of dyslexia》2004,54(1):9-38

A relationship between brain responses at birth and later emerging language and reading skills have been shown, but questions remain whether changes in brain responses after birth continue to predict the mastery of language-related skills such as reading development. To determine whether developmental changes in the brain-based perceptual skills are systematically related to differences in word-level reading proficiency at age 8 years, brain event-related potentials (ERPs) to speech and nonspeech stimuli were recorded annually at the ages of 1 through 8 years in a sample of 109 typically developing children. Two measures of word-level reading (one that requires decoding of real words and one of pseudowords) were administered at age 8 years. Growth curve analysis, using the hierarchical linear models, related reading performance (average versus low) to the longitudinal maturation in the ERP waveform peak and latencies. Maturational changes (e.g., slope, acceleration, and cubic growth) in N1 amplitude from ages 1 to 4 were related to proficiency in decoding pseudoword stimuli only, with children who were less proficient in decoding pseudowords evidencing more steeply negative declines in amplitude with age, particularly at the frontal and parietal recording sites in response to both speech and nonspeech stimuli. In contrast, proficiency in decoding real words was related to developmental changes in N2 amplitudes from ages 4 to 8 only at the parietal recording site, and only in response to nonspeech stimuli. The early development of biologically based differences in the perception and processing of auditory information contributes to later group differences in reading proficiencies at school age.  相似文献   

Building teachers' creative capabilities in Singapore's English classrooms: a way of contesting pedagogical instrumentality     

Dennis Kwek  Jim Albright  Anneliese Kramer‐Dahl 《Literacy》2007,41(2):71-78

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