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Nilly Adam Burton S. Rosner Elizabeth C. Hosick Donald L. Clark 《Attention, perception & psychophysics》1971,10(3):133-136
Ss produced time intervals before and during inhalation of low concentrations of anesthetic gases. The drugs increased time productions by raising the slope of the line representing produced against objective time. Alterations in time production were not accompanied by consistent changes in alpha rhythm, respiratory rate, heart rate, or body temperature. The findings argue against the’ alpha rhythm’s acting as the biological pendulum for the internal clock. 相似文献
904.
Observing behavior in squirrel monkeys under a multiple schedule of reinforcement availability
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Observing behavior of two squirrel monkeys was examined under a multiple schedule of four components. Lever (observing) responses produced either a stimulus indicating the availability of food or another stimulus indicating food was not available. Key responses in the presence of the food-available stimulus produced food on a continuous reinforcement schedule. In the absence of food-available stimuli, responding on the key had no scheduled consequences. Observing responses produced food-available stimuli according to three different random-interval schedules with mean interstimulus availability times of 1, 2, and 4 min. In the fourth component of the multiple schedule (observing extinction) food-available stimuli never occurred. Each component of the schedule was correlated with a distinctive auditory stimulus. Observing rates decreased with decreasing frequency of the food-available stimulus. Observing rates during extinction continued decreasing when the brief stimulus indicating food unavailability was no longer produced by lever pressing. When the brief stimulus was reinstated response rates increased abruptly. 相似文献
905.
906.
Two experiments investigated whether minority influence and conformity operate by the same or by different processes. It was predicted that subjects who were simultaneously exposed to a majority and a minority opinion would move towards the minority in private but towards the majority in public. The results of Experiment 1 supported this hypothesis. Experiment 2 investigated three hypotheses predicting that (1) the above interaction would be replicated, (2) minorities would trigger more arguments and counter-arguments, and (3) cognitive activity would mediate internalization but not compliance. Hypotheses 1 and 3 were supported. The second hypothesis was not supported. However, minorities were found to trigger more arguments and fewer counter-arguments than majorities. The results were interpreted as supporting the dual process model. 相似文献
907.
The nature and extent of spelling errors in a patient with transcortical sensory aphasia were investigated. The two experimental conditions required the patient to spell monosyllabic and polysyllabic words both verbally and in written form. Analysis of the spelling errors revealed partially preserved knowledge of the visual image of a word as a whole, as well as preserved knowledge of temporal order. Our patient's error patterns in both conditions were more similar than dissimilar. These findings in conjunction with results reported in the literature indicate that patients exhibiting different aphasia syndromes use separate spelling strategies. 相似文献
908.
Race, ethnicity, and depression: a confirmatory analysis 总被引:4,自引:0,他引:4
C S Aneshensel V A Clark R R Frerichs 《Journal of personality and social psychology》1983,44(2):385-398
This study addresses two questions: (a) Are depressive-symptom scales equally indicative of depression in different racial/ethnic groups and (b) are there mean differences between the groups in the underlying depressive disorder assessed by these scales? The data consist of interviews obtained from a large community survey of depression in Los Angeles County. Four racial/ethnic groups were considered: Anglos, blacks, English-speaking Hispanics, and Spanish-speaking Hispanics. Confirmatory factor analysis was used to test both one-factor and two-factor models of depression. An invariant factor pattern was demonstrated. No significant mean differences on a factor of Depression were found, but the groups were found to differ on a Well-Being factor. Implications for survey research on psychiatric impairment among different racial/ethnic groups are discussed. 相似文献
909.
An FFT-based software package has been designed and implemented in order to analyze and synthesize bird vocalizations. The system is flexible so that screen editing can be per-formed on either the original waveform or the Fourier coefficients of the transform. The edited coefficients of selected notes, syllables, or songs are stored for later modification or combination with other song components to compose entirely new songs. These analyses and synthesis methods have proved to be extremely useful in the elucidation of birds’ perceptive capabilities and the biological significance of their songs. 相似文献
910.
A 13-year-old male adolescent inpatient with a 5-year history of primary obsessional slowness was treated using a nursing intervention programme involving prompting, pacing and shaping, or participant modelling of four types of self-care behaviour. The treatments produced an immediate increase in response rate of three of the four behaviour targets. Treatment gains were not maintained during the gradual fading of the intervention programme. Possible reasons for failure to achieve treatment maintenance are discussed in light of the literature on primary obsessional slowness. 相似文献