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111.
Umberto Castiello Claudia Bonfiglioli Kerry Bennett 《Attention, perception & psychophysics》1998,60(4):662-672
This study asked the question, “Will the motor pattern to a perceived two-dimensional (2-D) object differ from that same object when it is perceived as three dimensional (3-D)?” Subjects were required to reach and grasp an apple that could appear to be 2-D or 3-D. Two experimental sessions were conducted. In Condition A, the apple was initially perceived to be 2-D, but, for 20% of trials, it suddenly shifted to a 3-D apple at movement onset. In Condition B, the apple was initially perceived to be 3-D, but, for 20% of trials, it suddenly shifted to a 2-D silhouette of the same apple. For control trials, subjects grasped the perceived 2-D apple as if it were a disc (82%), and they grasped the 3-D apple, as they would a normal apple, with a whole-hand grasp (86%). For Condition A perturbed trials, there was a rapid change from a 2-D precision grip to a 3-D whole-hand prehension, whereas the converse was true for the opposite perturbation. Peak acceleration was anticipated for Condition A perturbed trials but not for Condition B perturbed trials. These results indicate that the motor patterns we use in interacting with an object are strongly influenced by the way we perceive the object in real time, and that object affordances, such as dimension, can override the influence exerted by existing representations. 相似文献
112.
113.
Clinton W. Bennett 《Journal of applied behavior analysis》1974,7(3):439-445
Two 4-yr-old hearing-impaired girls were trained to articulate correctly /f/ and /sh/ phonemes in the initial position of words in response to pictures. They were first trained to imitate, and then to respond on demand of “what's this?” As a result, both girls generalized correct articulation to words requiring both phonemes in the initial and final positions. 相似文献
114.
The Adjective Check List (ACL) was employed in the empirical definition of male and female stereotypes by 50 male and 50 female college student subjects. Judgments by male and female subjects correlated highly. There were 33 male adjectives and 30 female adjectives on which at least 75% of both sexes agreed. With a 60% agreement criterion, there were 98 male and 83 female adjectives. Both male and female stereotypes were treated as hypothetical persons and were shown to be highly deviant on standard ACL norms, with the male stereotype being more deviant and perhaps more “disturbed” than the female stereotype. It was concluded that the ACL is a promising method for the definition and study of sex stereotypes. 相似文献
115.
W W Finley R L Besserman L F Bennett R K Clapp P M Finley 《Behaviour research and therapy》1973,11(3):289-297
It has been suggested that intermittent reinforcement may be of value in reducing the rate of relapse in bedwetting conditioning therapy. An experiment was conducted with 30 enuretic boys to examine acquisition and extinction parameters of continuous (100%), intermittent (70% variable ratio), and “placebo” (0%) reinforcement schedules. Reinforced trials were administered as in the typical Mowrer conditioning procedure. Non-reinforced trials were achieved by means of a time delay with the subsequent alarm being activated in the parent's room rather than in the child's room. These procedures required the development of a new conditioning device which could be programmed to automatically administer the desired schedule of reinforcement. The results of the field investigation revealed that continuous reinforcement (CR) and intermittent reinforcement (IR) groups attained acquisition in approximately the same number of trials and with essentially the same success rate. Relapse rate was significantly greater in the CR group than in the IR group. The placebo group showed no improvement over the 6 weeks of treatment. The results of this study may be interpreted as supporting the tenet that relapse can be viewed and treated as an extinction of the acquired response. 相似文献
116.
A 3-yr-old hearing-impaired girl, who used neither the article "the" nor the auxiliary verb "is" was taught to use these words in describing a picture, initially through imitation and then in response to the command, "Tell me about this". As a result, she was able to use sentences in the present progressive form to describe a number of pictures on which she had received no training. This newly acquired behavior was subsequently extinguished and then reinstated. 相似文献
117.
118.
Two-hundred-twelve sociology students completed a version of Rokeach's Value Survey in which the presentation order of the values was randomized. Each respondent received a unique randomization pattern. Spearman's correlations were computed between the presentation order and the order of ranking done by the respondent. The magnitude of the correlations obtained was such that the amount of bias created by presentation order was sufficiently small as to suggest that order effects are not a problem in the instrument. 相似文献
119.
Children at four age levels (4, 6, 8, and 10 years) were given continuous recognition tasks using concrete noun, abstract noun, and pictorial stimuli in a 4 × 3 factorial design. Pictures were recognized significantly better than concrete and abstract nouns at the 4- and 6-year age levels and significantly better than abstract nouns at the 8- and 10-year age levels. This supported Paivio's contention that pictures are easier to remember than words because of a greater possibility of dual encoding, while Rohwer's contention that there is a shift in recognition memory development received no support. There were no significant differences between recognition of concrete and abstract nouns at any age level, which opposed the findings from adult studies and suggested that Paivio's theoretical orientation would have to be extended in order to account for developmental data. Recognition for both concrete and abstract nouns was found to be linear and increasing significantly with age, but no age trends for picture recognition were found. 相似文献
120.