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11.
We investigated how the information that supports novel associative and item object priming differs under identical study/test conditions. In Experiments 1 and 2, participants rated the meaningfulness of sentences linking two object pictures at study. At test, they performed either a size judgement or an associative recognition memory task on intact, recombined and novel picture (Experiment 1) or word (Experiment 2) associations. Associative priming was modulated by subjective meaningfulness of the encoded links, and depended on study/test perceptual overlap. In contrast, item priming was neither affected by the meaningfulness of the sentences nor by study/test changes in the stimulus presentation format. Associative priming and recognition were behaviourally dissociated, and associative recognition was probably too slow to have seriously contaminated associative priming. In Experiment 3, participants performed a perceptually oriented task during both experimental phases, and both associative and item priming were observed. These results suggest that associative priming depends on stored associative semantic and perceptual information when the test task requires flexible retrieval of associative information. Under the same conditions, item priming may only require activation of items' semantic properties. When both study and test tasks stress perceptual processing, retrieval of perceptual information is sufficient to support both kinds of priming. 相似文献
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Zeev N. Kain Linda C. Mayes Domenic V. Cicchetti Lisa A. Caramico Martha Spieker Margaret M. Nygren 《Child neuropsychology》2013,19(3):203-210
To develop a preoperative anxiety scale (YPAS) for children undergoing surgery, 21 specific behaviors indicating anxiety were defined within five domains (activity, emotional expressivity, state of arousal, vocalization, and use of adults). A reliability Kappa analysis revealed that inter-observer agreement ranged from .66 to .94, while intra-observer Kappa ranged from .66 to .91. Validity analysis between a Visual Analog Scale and the YPAS revealed an r of .59 for entering the operating room. Multiserial analysis comparing the YPAS to the Vernon Anxiety Scale ranged from .61 to .64. Showing good to excellent observer reliability and validity, the YPAS proves to be an appropriate tool for studying children's responses in preoperative settings. As such, the new assessment instrument should be of interest to clinical and research neuropsychologists who need to assess a child's anxiety level prior to the undertaking of a given surgical procedure. 相似文献
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Ninety-four prenatally cocaine-exposed and 50 non-cocaine-exposed infants were enrolled at birth and seen at 3,6, and 12 months. Applying a recently developed model (Cicchetti&Nelson, 1994) produced four independent groups: those infants assessed at birth only (n=61), those returning for at least one (n=29) or two (n=15) assessments after birth, and those returning for all three (n=35). Among those infants having all follow-up assessments, cocaine-exposed infants showed significantly lower psychomotor performance on the Bayley Scales of Infant Development (BSID) than did non-exposed infants. Results approached statistical significance for mental development. Except for birthweight (cocaine-exposed infants weighed significantly less), none of a wide range of maternal, perinatal, or neurobehavioral demographic variables biased study results or the generalization of findings to the total sample from those who returned for all visits. 相似文献
15.
Lars O. White Jia Wu Jessica L. Borelli Linda C. Mayes Michael J. Crowley 《Developmental science》2013,16(6):850-863
Reunion behavior following stressful separations from caregivers is often considered the single most sensitive clue to infant attachment patterns. Extending these ideas to middle childhood/early adolescence, we examined participants' neural responses to reunion with peers who had previously excluded them. We recorded event‐related potentials among nineteen 11‐ to 15‐year‐old youth previously classified on attachment interviews (11 secure and 8 insecure‐dismissing) while they played a virtual ball‐toss game (Cyberball) with peers that involved fair play, exclusion and reunion phases. Compared to secure participants, dismissing participants displayed a greater increment in the N2 during reunion relative to fair play, a neural marker commonly linked to expectancy violation. These data suggest a greater tendency toward continued expectations of rejection among dismissing children, even after cessation of social exclusion. In turn, the link between self‐reported ostracism distress and neural signs of negative expectancy at reunion was moderated by attachment, such that self‐reports were discordant with the neural index of expectancy violation for dismissing, but not for secure children. A video abstract of this article can be viewed at http://www.youtube.com/watch?v=qzoRel5c-4s . 相似文献
16.
K A Paller A R Mayes K M Thompson A W Young J Roberts P R Meudell 《Brain and cognition》1992,18(1):46-59
Priming was studied in a task that required a speeded response to photographs of faces. On each trial, subjects viewed two faces and decided if the same person was shown twice or if two different people were shown. Both familiar and unfamiliar (i.e., well-known and unknown) faces were used, and some face pairs were repeated with a mean delay of about 10 min. Repetition was associated with faster reaction times in young subjects (Experiment 1) as well as in amnesic patients and age-matched control subjects (Experiment 2). The patients' reaction times were slower overall, although the magnitude of the priming effect did not differ from that in the control subjects. This preservation of a normal reaction-time facilitation in subjects with impaired recognition memory for faces occurred for both familiar and unfamiliar faces, suggesting that amnesia does not necessarily interfere with the acquisition of new information as indexed by this priming effect. 相似文献
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Marjukka Pajulo Nancy Suchman Mirjam Kalland Linda Mayes 《Infant mental health journal》2006,27(5):448-465
Substance abuse during early motherhood has become a significant problem and has led to accelerated efforts to develop specific treatment facilities for these mothers and children. Despite the often intensive treatment efforts in residential settings, there is surprisingly little evidence of their efficacy for enhancing the quality of caregiving. The situation of these mother‐child pairs is exceptionally complex and multilevel, and has to be taken into account in the content and structuring of treatment. Intensive work in the “here and now” focusing on the mother‐child relationship from pregnancy onwards in an effort to enhance maternal reflective capacity and mindedness is considered a key element for better treatment prognosis, in terms of both abstinence and quality of parenting. Pioneering work with such a focus is described in this article. 相似文献
19.
Gordon Diagnostic System (GDS) data were analyzed for 165 referred children with ADHD combined type and 46 referred children without ADHD, 6-16 years of age. Results showed significant differences between children with and without ADHD on the GDS standard scores and the IQ-GDS differences scores. Using a GDS composite standard score of 13 points or more below IQ to classify children as having ADHD resulted in the highest diagnostic accuracy (86%), with positive predictive power equal to 91%, and negative predictive power 67%. Results for the GDS compared favorably with those reported for other continuous performance tests. The findings lend support to the GDS as a clinically useful component of an ADHD evaluation. 相似文献
20.
Relations between maternal education and indices of infant information-processing performance were examined. A sample of 93 3-month olds whose mothers' completed education level was adequately distributed were seen in an infant control habituation procedure. Eighteen infants failed to complete the procedure, and 76 reached a conventional habituation criterion. No significant differences in habituation performance by maternal education level emerged. This finding suggests that information-processing indices obtained in the first 6 months are useful as predictive measures of mental development that are uncorrelated with important markers of infants' environmental rearing conditions. 相似文献