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21.
Oddist D. Murphree Ph.D. John E. Peters M.D. Roscoe A. Dykman Ph.D. 《Integrative psychological & behavioral science》1967,2(4):273-276
Through selective mating and line breeding of pointer dogs we have developed and continued two strains which are fairly behaviorally distinct. We now have data accumulating from the crossing of these two lines. Although the offspring from the crosses are still young, it can be seen that some stable male parents have had nonenvironmental, i.e., genetic, effects. The offspring are in many respects like their nervous mothers, but in some behavior, notably social behavior, they can be mistaken for the stable strain of dog. Heart rates have mimicked those of the nervous mothers and seem in no way influenced by the stable ancestry in “Effect of Person” tests. There is a marked difference between stable and unstable dogs in the effect of “Person” on heart rate: the unstable dogs show practically no cardiac response to “Person” (petting), whereas the normal dogs show the usual marked bradycardia to petting. 相似文献
22.
This exploratory study examined the characteristics and interpersonal relations of a relatively small group of adolescents who identified themselves as members of a revived "mod movement." In-depth interviews were conducted with 13 members (45%) of this peer group in order to: identify the main features of the members, determine their similarity to earlier British mods, and assess gains from group affiliation. Results suggested that adolescents who joined this unique and somewhat extreme group were more similar than dissimilar to their contemporaries in their efforts to establish an identity and be accepted as individuals. Implications for interacting with members of such adolescent groups, and suggestions for future research are presented. 相似文献
23.
The occurrence and forms of violence experienced by adolescents in families and dating relationships were investigated. Subjects were 204 juniors and seniors enrolled in a high school in central Michigan. A primary aim of the study was to examine similarities between adolescents' experiences with dating violence and those reported by college students. Findings indicate that high school students encounter a considerable amount of violence in their families. Results also reveal a remarkable similarity between their dating experiences and those of college students, suggesting that there is a pattern to "relationship violence". 相似文献
24.
Film and a number of emerging entertainment technologies offer media consumers an illusion of nonmediation known as presence. To investigate the possibility that television can evoke presence, 65 undergraduate students were shown brief examples of rapid point‐of‐view movement from commercially available videotapes on a television with either a small screen (12 inches [30.5 cm], measured diagonally) or a large screen (46 inches [116.8 cm]). Participants' responses were measured via a questionnaire and a computer‐based recording of arousal (electrodermal activity). Viewers of both televisions reported an enjoyable sense of physical movement, excitement, involvement, and a sense of participation. Furthermore, as predicted, participants who watched the large screen television thought the movement in the scenes was faster, experienced a greater sense of physical movement, enjoyed the movement to a greater extent, found the viewing experience more exciting, and were more physiologically aroused. Practical and theoretical implications are discussed. 相似文献
25.
Koehler LJ Iwata BA Roscoe EM Rolider NU O'Steen LE 《Journal of applied behavior analysis》2005,38(4):469-484
We examined the effects of stimulus (reinforcer) variation in several different contexts. In Study 1, we identified high-quality (HQ) and low-quality (LQ) stimuli based on results of a paired-stimulus assessment and examined their effects when available under concurrent-reinforcement schedules for 8 participants. No participants showed preference for the LQ stimuli when compared singly or in a varied arrangement to the HQ stimulus. In Study 2, we identified nonpreferred (NP) stimuli based on results of a single-stimulus assessment and examined their effects when available under single-reinforcement schedules for 3 participants. Results of Study 2 were mixed. One participant's data indicated that the varied presentation of NP stimuli produced a modest improvement in performance over that observed when the stimuli were presented singly. By contrast, a second participant's data showed no facilitative effect for the varied delivery of NP stimuli and that the inclusion of an HQ stimulus in the varied arrangement obscured the reinforcing effects of the HQ stimulus. The 3rd participant's data showed no effect for the varied delivery of NP stimuli but an apparent facilitative effect when an HQ stimulus was included in the varied arrangement, which was attributable solely to the presence of the HQ stimulus. 相似文献
26.
Lindberg JS Iwata BA Roscoe EM Worsdell AS Hanley GP 《Journal of applied behavior analysis》2003,36(1):1-19
We evaluated the long-term therapeutic effects of noncontingent reinforcement (NCR). In Experiment 1, NCR effects were examined with 2 participants' arbitrary responses; in Experiment 2, NCR was used as treatment with 3 participants whose self-injurious behavior (SIB) was maintained by automatic reinforcement. In both experiments, NCR consisted of continuous access to a highly preferred leisure item and was implemented initially during 10-min and later during 120-min sessions. Varied reinforcers (leisure items) were subsequently introduced during 120-min sessions to determine if treatment effects might be extended. Finally (Experiment 2 only), NCR was implemented throughout the day in participants' homes. Results of Experiments 1 and 2 showed that reinforcers obtained through object manipulation can compete with those obtained automatically by engaging in SIB during brief NCR sessions. However, data from the 120-min sessions indicated that satiation to a specific leisure item might occur over periods of time more typical of those during which treatment would be implemented. Access to a variety of highly preferred leisure items extended the effectiveness of NCR for some individuals. When NCR was implemented throughout the day (Experiment 2), therapeutic effects were shown to be maintained for up to 1 year. 相似文献
27.
We compared results obtained in two previous studies on reinforcer identification (Fisher et al., 1992; Pace, Ivancic, Edwards, Iwata, & Page, 1985) by combining methodologies from both studies. Eight individuals with mental retardation participated. During Phase 1, two preference assessments were conducted, one in which stimuli were presented singly (SS method) and one in which stimuli were presented in pairs (PS method). Based on these results, two types of stimuli were identified for each participant: High-preference (HP) stimuli were those selected on 75% or more trials during both preference assessments; low-preference (LP) stimuli were those selected on 100% of the SS trials but on 25% or fewer of the PS trials. During Phase 2, the reinforcing effects of HP and LP stimuli were evaluated in reversal designs under two test conditions: concurrent and single schedules of continuous reinforcement. Two response options were available under the concurrent-schedule condition: One response produced access to the HP stimulus; the other produced access to the LP stimulus. Only one response option was available under the single-schedule condition, and that response produced access only to the LP stimulus. Results indicated that 7 of the 8 participants consistently showed preference for the HP stimulus under the concurrent schedule. However, when only the LP stimulus was available during the single-schedule condition, response rates for 6 of the 7 participants were as high as those observed for the HP stimulus during the concurrent-schedule condition (1 participant showed no reinforcement effect). These results indicate that, although the concurrent-schedule procedure is well suited to the assessment of relative reinforcement effects (preference for one reinforcer over another), absolute reinforcement effects associated with a given stimulus may be best examined under single-schedule conditions. 相似文献
28.
The effects of nutritional supplements on the symptoms of fibromyalgia and chronic fatigue syndrome 总被引:1,自引:0,他引:1
Kathryn D. Dykman Catherine Tone Cindy Ford Roscoe A. Dykman 《Integrative psychological & behavioral science》1998,33(1):61-71
This article reports the results of a within-subject design. Fifty subjects with a physician diagnosis of fibromyalgia (FM)
and/or chronic fatigue syndrome (CFS) were interviewed using a structured interview form. Each subject was interviewed initially,
and again nine months later (follow-up). Subjects had, on their own, consumed nutritional supplements including freeze-dried
aloe vera gel extract; a combination of freeze-dried aloe vera gel extract and additional plant-derived saccharides; freeze-dried
fruits and vegetables in combination with the saccharides; and a formulation of dioscorea complex containing the saccharides
and a vitamin/mineral complex. With medical treatments, approximately 25 percent of FM patients improved, but the beneficial
effects of medical treatment rarely persist more than a few months. All subjects in this study had received some form of medical
treatment prior to taking the nutritional supplements, but none with enduring success. Nutritional supplements resulted in
a remarkable reduction in initial symptom severity, with continued improvement in the period between initial assessment and
the follow-up. Further research is needed to verify these results, specifically crossover designs in well-defined populations. 相似文献
29.
CARL-OTTO JONSSON GUNNEL REIMBLADH-TAUBE EVA SJÖSWÄRD 《Scandinavian journal of psychology》1993,34(1):86-93
In this study, the notion of a favourite object is used as a heuristic concept for things that children are occupied with and absorbed by. According to earlier studies, favourite objects can be grouped into four categories: forerunners of transitional objects, primary and secondary transitional objects, and favourite toys. This initial classification was compared to results of cluster analyses of characteristics of favourite objects among 32 preschool and 30 primary school children, corroborating the initial classification and specifying the typology. The distribution of types of objects was different for the two groups of children, but was not dependent on age within groups or, for the preschool children, on mental development. These results indicate that changes of favourite objects with mental maturation are slow.
The softness of the material of primary and secondary transitional objects and the preference for objects that could be kept close to the body suggest that the comforting character of these favourite objects has its root in the child's self-soothing actions with the object. 相似文献
The softness of the material of primary and secondary transitional objects and the preference for objects that could be kept close to the body suggest that the comforting character of these favourite objects has its root in the child's self-soothing actions with the object. 相似文献
30.
Erin S. Leif Eileen M. Roscoe William H. Ahearn Jacqueline P. Rogalski Heather Morrison 《Journal of applied behavior analysis》2020,53(3):1638-1659
A competing stimulus assessment (CSA) is commonly used to identify leisure items for use in treatments designed to decrease automatically reinforced problem behavior. However, this type of assessment may not yield useful information if participants do not readily engage with leisure items. The purpose of this study was to evaluate a modified CSA that included additional treatment components (i.e., prompting, prompting plus differential reinforcement of alternative behavior). The modified CSA identified the treatment components and leisure items that were most effective for increasing leisure-item engagement and decreasing problem behavior for each participant. Modified CSA outcomes maintained during an extended treatment analysis in a natural setting and when intervention components were faded. 相似文献