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151.
In most current accounts of character classification, emphasis is laid on the role of the positive set. Reanalysis of a previous experiment (Marcel, 1970) showed that in the constant set procedure, as well as the varied set procedure, when consecutive sets of digits are used, latency to negative probes depends on remoteness from the positive set boundary, except when the positive set consists of only one item. Two further experiments showed that in both the constant-and varied-set procedures, latency to individual negative probes decreased with their frequency, except with positive sets of one item. These data indicate that negatives are not usually classified as such merely by default. Some alternative models to Sternberg's are discussed. It is proposed that when he is able to (always with one-item positive sets) the subject will perform a physical match. Otherwise the probe will access its location in long-term memory, associated with which is appropriate response information. The ease of recovery of that information is emphasized as responsible for variation in latencies. 相似文献
152.
Marcel Adam Just Richard Lee Suslick Steve Michaels Linda Shockey 《Attention, perception & psychophysics》1978,24(4):327-336
These studies examined the perceptual role of various components of naturally produced stop consonants (/b, d, g, p, t, k/) in CV syllables. In the first experiment, the context-sensitive voiced formant transitions were removed with a computer-splicing technique. Identification accuracy was 84% when the consonant was presented with the same vowel as had been used to produce it. Performance fell to 66% when the consonant was juxtaposed with a different vowel. The second experiment not only deleted the voiced formant transition, but also replaced the aspiration with silence. Here, identification accuracy dropped substantially, especially for voiceless stops, which had contained devoiced formant transitions in the replaced interval. The pattern of errors suggested that listeners try to extract the missing locus of the consonant from the vowel transition, and in the absence of a vowel transition, they try to extrapolate it from the second formant of the steady-state vowel. 相似文献
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154.
Humans are able to perform any voluntary motor response to any environmental stimulus. This cornerstone of the flexibility of human behaviour has been investigated under the label of arbitrary visuomotor mapping. The focus of research has been the question as to how these mappings are executed once the subjects have been instructed appropriately. However, one question has been rather neglected thus far: what, in the first place, enables humans to instantaneously implement any arbitrary S-R mapping by mere instruction! We report an experiment assessing the cross-talk of arbitrary S-R mappings as a part of the instructed task representation, on the one hand, and the cross-talk of repetitively applied mappings, on the other hand. The results show a behavioural dissociation of the cross-talk elicited by instructed and applied mappings, suggesting that the first occurs on the level of task-set, whereas the latter occurs on the level of specific S-R associations. 相似文献
155.
This qualitative study investigated the perceptions and challenges of Seventh-day Adventist teachers towards inclusion classrooms in the United States. For this study, 17 participants were interviewed using two 12-item interview protocols. The analysis of the teachers’ responses revealed five key perceptions. First, teachers have positive attitudes towards inclusion. Second, accommodations help students who are mildly disabled succeed in the regular classroom. Third, inclusion classrooms can be Christian based. Fourth, school personnel need to develop policies for accepting students with disabilities. Finally, Adventist teachers can identify children with special needs. Participants identified two challenges for implementing inclusion classrooms, first, developing policies and resources for use by teachers, and second, providing needed training to help teachers succeed in an inclusive classroom. The article concludes with recommendations for developing a successful inclusive educational program in Christian schools and recommendations future study. 相似文献
156.
157.
Feldner MT Zvolensky MJ Stickle TR Bonn-Miller MO Leen-Feldner EW 《Behaviour research and therapy》2006,44(2):249-272
Anxiety-related responding to, and recovery from, a 5-min 10% carbon dioxide-enriched air presentation among 80 participants with no history of psychopathology was examined. Half of participants were instructed to suppress challenge-induced emotional responses, whereas their matched counterparts were instructed to observe such responses. Responding from immediately post-challenge through a 10-min recovery period was analyzed as a function of Anxiety Sensitivity-Physical Concerns and experimental condition using individual growth curve modeling. Anxiety Sensitivity-Physical Concerns moderated the effect of suppression only on emotion valence during recovery. In terms of main effects, suppression resulted in increased heart rate during recovery and Anxiety Sensitivity-Physical Concerns was positively associated with post-challenge self-reported anxiety. Results are discussed in terms of the potential role of inhibition-oriented affect regulation processes in the etiology of panic disorder. 相似文献
158.
159.
Marcel?O.?Bonn-Miller Michael?J.?ZvolenskyEmail author Ellen?W.?Leen-Feldner Matthew?T.?Feldner Andrew?R.?Yartz 《Journal of psychopathology and behavioral assessment》2005,27(4):279-289
The present investigation evaluated the incremental validity of regular marijuana use and frequency of such use in relation to anxiety and depressive symptoms and perceived health among young adult tobacco smokers (n = 202). Approximately 72% of the sample were current marijuana smokers, using this drug on an average of 7.6 (SD = 9.2) times per week. As expected, after controlling for theoretically-relevant smoking (cigarettes per day), alcohol use, and affect factors (i.e., negative affectivity and anxiety sensitivity), marijuana use predicted anxiety symptoms and perceived general health, whereas frequency of marijuana use predicted only anxiety symptoms. These results are discussed in relation to better understanding the role of regular marijuana use in terms of anxiety-relevant emotional vulnerability and beliefs about physical health among regular smokers. 相似文献
160.
Imitation poses a unique problem: how does the imitator know what pattern of motor activation will make their action look like that of the model? Specialist theories suggest that this correspondence problem has a unique solution; there are functional and neurological mechanisms dedicated to controlling imitation. Generalist theories propose that the problem is solved by general mechanisms of associative learning and action control. Recent research in cognitive neuroscience, stimulated by the discovery of mirror neurons, supports generalist solutions. Imitation is based on the automatic activation of motor representations by movement observation. These externally triggered motor representations are then used to reproduce the observed behaviour. This imitative capacity depends on learned perceptual-motor links. Finally, mechanisms distinguishing self from other are implicated in the inhibition of imitative behaviour. 相似文献