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91.
Vansteenwegen D Hermans D Vervliet B Francken G Beckers T Baeyens F Eelen P 《Behaviour research and therapy》2005,43(3):323-336
In a differential human fear conditioning paradigm evidence for ABA-renewal was obtained manipulating the lighting in the experimental room. During acquisition in either a dark or illuminated room, one neutral slide was sometimes paired with a loud aversive noise whereas another slide was not. Subsequently, extinction took place in the opposite lighting context. When afterwards the participants were tested again in the original acquisition context, measurements revealed a recovery of the conditioned electrodermal response and an increase in the retrospective verbal US-expectancy ratings. No response recovery was obtained in an AAA-group that received acquisition, extinction and test trials in one and the same context. Several theoretical explanations for this type of return of fear as well as implications for clinical practice are discussed. 相似文献
92.
Hermans D Dirikx T Vansteenwegen D Vansteenwegenin D Baeyens F Van den Bergh O Eelen P 《Behaviour research and therapy》2005,43(4):533-551
The treatment of choice for a number of anxiety disorders is exposure therapy. However, successful reduction of fear through exposure is sometimes followed by a (partial) return of symptoms of fear (return of fear, ROF; Clin. Psychol. Rev. 9 (1989) 147). Several possible learning mechanisms have been suggested to explain ROF (e.g. mechanisms related to spontaneous recovery, renewal, reacquisition and reinstatement). The present study focuses on reinstatement, which refers to the observation that mere US-only presentations can 'reinstate' previously extinguished fear responses. Although animal research has repeatedly demonstrated this phenomenon, little is known about fear reinstatement in humans. The present study employed a differential aversive conditioning procedure: after acquisition and a subsequent extinction procedure, a series of four unpredicted US-only trials was scheduled in the reinstatement group. The control group did not receive additional US presentations. A significant reinstatement effect was observed for US-expectancy ratings and fear ratings in the reinstatement group, but not in the control group. No differences were observed in a reaction time measure of resource allocation to the conditioned stimuli. These findings constitute a first demonstration of reinstatement of conditioned fear responses in humans. Implications for exposure treatment and suggestions for future research are discussed. 相似文献
93.
Fear generalization lies at the heart of many anxiety problems, and is therefore an important target for prevention and/or treatment. Here, we investigated whether fear generalization towards a specific stimulus can be weakened by prior non-fearful experiences with that stimulus. Using the standard human fear conditioning procedure, all participants received paired presentations of a geometric figure and an electric shock. This was followed by a test phase in which a similar but different figure was presented. Electrodermal responding and ratings of shock-expectancy measured the level of fear generalization towards this test stimulus. Crucially, half of the participants had been preexposed to that stimulus (without shock). The results show significantly less generalization in this group, suggesting that prior non-fearful experiences can protect against fear generalization. These results may inspire novel ways to prevent the development of clinical anxiety. 相似文献
94.
Francis‐Vincent Anthony Chris A. M. Hermans Carl Sterkens 《Journal for the scientific study of religion》2010,49(2):264-277
Hood developed a Mysticism Scale based on the theoretical work of Stace. The scale was tested by Hood and others in a comparative perspective. Using an abridged version of Hood's Mysticism Scale, we join the debate with a study of a much larger number of Christian, Muslim, and Hindu respondents (1,920 college students) living in Tamil Nadu, India. Our empirical analysis yields a moderately reliable model of mystical experience that permits comparison between the three religious traditions. We argue for the usefulness of a comparative model of vertical mysticism that combines with the complementary common characteristics of noetic quality and ineffability. Vertical mysticism has a revelatory, ineffable character and is comparable in the experience of adherents of the Christian, Islamic, and Hindu traditions. 相似文献
95.
Abstract Semantic and emotional priming below objective detection threshold was investigated using a binocular pattern masking procedure. In the first experiment lexical decision time to emotionally aversive target stimuli was significantly faciliated by the presentation of emotionally aversive primes and primes semantically related to the target, thus replicating the emotional and semantic priming effects found supraliminally in Hill and Kemp-Wheeler (1989). In Experiment 2, a significant semantic priming effect was again found but the subliminal emotional priming effect of Experiment 1 did not replicate. 相似文献
96.
In a recent series of studies, it was demonstrated that originally neutral stimuli that were predictive of an electrocutaneous stimulus in a differential aversive conditioning procedure not only acquired “signal-value” but also acquired a negative affective valence. These affective changes were not only evident from the evaluative ratings scales, but also from the data of an affective priming procedure. This response-latency based priming procedure has recently been employed as an indirect and unobtrusive index of stimulus valence (attitudes) (e.g., Fazio, Jackson, Dunton, & Williams, 1995). In the present experiment, the use of the affective priming procedure as an indirect measure of stimulus valence was further explored. Results showed that aversively conditioned stimuli revealed their newly acquired valence in this priming procedure. As predicted, this effect was obtained at the short SOA (300 ms) but not at the long SOA (1000 ms). The significant SOA X Priming interaction suggests that the affective priming procedure is less or not affected by demand effects and (self-presentational) response strategies. This makes the affective priming effect and excellent and unobtrusive measure of affective valence and an interesting alternative to subjective rating scales in situations where demand effects might otherwise influence responding. The results are also related to recent research on conditioning models of the acquisition of anxiety disorders, and to research on the co-occurrence of expectancy learning and affective learning within these models. 相似文献
98.
99.
In affective Simon studies, participants are to select between a positive and negative response on the basis of a nonaffective stimulus feature (i.e., relevant stimulus feature) while ignoring the valence of the presented stimuli (i.e., irrelevant stimulus feature). De Houwer and Eelen (1998) showed that the time to select the correct response is influenced by the match between the valence of the response and the (irrelevant) valence of the stimulus. In the affective Simon studies that have been reported until now, only words were used as stimuli and the relevant stimulus feature was always the grammatical category of the words. We report four experiments in which we examined the generality of the affective Simon effect. Significant affective Simon effects were found when the semantic category, grammatical category, and letter-case of words was relevant, when the semantic category of photographed objects was relevant, and when participants were asked to give nonverbal approach or avoidance responses on the basis of the grammatical category of words. Results also showed that the magnitude of the affective Simon effect depended on the nature of the relevant feature. 相似文献