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51.
Holland PC Thornton JA Ciali L 《Journal of experimental psychology. Animal behavior processes》2000,26(4):462-476
Normal rats showed faster learning of a serial negative patterning (NP) discrimination (X+, A+, X-->A-) than of a comparable feature negative (FN) discrimination (A+, X-->A-). This advantage was absent in rats with lesions of the amygdala central nucleus. Earlier data indicated that this brain lesion interferes with surprise-induced increases in attention specified by the Pearce-Hall model (J. M. Pearce & G. Hall, 1980). In the NP task, but not the FN task, omission of the reinforcer after X on X-->A- trials was surprising. A variation of the NP task (NPX), in which X was reinforced on both X+ and X-->A- trials, was learned more rapidly than the NP task. Lesioned rats were unimpaired in learning the NPX task. Evaluation of the lesion effects and the results of posttraining transfer tests suggested that the NP advantage involved attentional processes, whereas the NPX advantage was based on the acquisition of inhibitory control by aspects of excitation conditioned to X. 相似文献
52.
We examined the extent to which implicit and explicit memory performance is susceptible to the effects of proactive and retroactive interference produced by orthographic similarity. Participants studied target and nontarget words that were orthographically similar or dissimilar. At test, they were given fragments of the target words intermixed with fragments of nonstudied words. Participants' initial task was to determine whether each fragment was a studied word. If they recognized it, they were to complete the fragment with the studied word; if not, they were to complete the fragment with the first word that came to mind. Completion rates including both recognized and nonrecognized target fragments provided evidence of proactive but not retroactive interference. The implicit processing engaged by the nonrecognized target fragments was found to be the primary source of the proactive interference effect. 相似文献
53.
A rotating sphere with an artistically painted surface may appear to reverse its direction of rotation and at the same time reverse its curvature from convex to concave (the Termes Illusion). This study tested the effects of 4 rotational speeds (stationary, 1 rpm, 2.5 rpm, and 3.75 rpm) in producing this illusion. Analysis indicated that the number and duration of reversals increased with speed of rotation and successive viewing sessions. Latency of reversal decreased with successive sessions. Explanations in terms of satiation theory, learning theory, instructions, and perceptual bias were discussed. 相似文献
54.
A matching advantage for dynamic human faces 总被引:3,自引:0,他引:3
In a series of three experiments, we used a sequential matching task to explore the impact of non-rigid facial motion on the perception of human faces. Dynamic prime images, in the form of short video sequences, facilitated matching responses relative to a single static prime image. This advantage was observed whenever the prime and target showed the same face but an identity match was required across expression (experiment 1) or view (experiment 2). No facilitation was observed for identical dynamic prime sequences when the matching dimension was shifted from identity to expression (experiment 3). We suggest that the observed dynamic advantage, the first reported for non-degraded facial images, arises because the matching task places more emphasis on visual working memory than typical face recognition tasks. More specifically, we believe that representational mechanisms optimised for the processing of motion and/or change-over-time are established and maintained in working memory and that such 'dynamic representations' (Freyd, 1987 Psychological Review 94 427-438) capitalise on the increased information content of the dynamic primes to enhance performance. 相似文献
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57.
Thornton LK Baker AL Johnson MP Kay-Lambkin F Lewin TJ 《Psychology of addictive behaviors》2012,26(2):279-288
Substance use disorders (SUD) are common among people with psychotic disorders and are associated with many negative consequences. Understanding the reasons for substance use in this population may allow for the development of more effective prevention and intervention strategies. We examined reasons for tobacco, alcohol, or cannabis use among people with psychotic disorders. Sixty-four participants with a diagnosed psychotic disorder completed a self-report reasons for use questionnaire. A subset of eight participants completed semi-structured qualitative interviews. Both the qualitative and quantitative data indicated that reasons for use of tobacco, alcohol, and cannabis differed considerably. Tobacco was primarily used for coping motives, alcohol for social motives, and cannabis for pleasure enhancement motives. Prevention and intervention strategies targeting coexisting psychotic disorders and SUD may improve in effectiveness if they address the perceived beneficial effects of tobacco use, the strong social pressures influencing alcohol use and if they encourage cannabis users to seek alternative pleasurable activities. 相似文献
58.
Evidence from many different paradigms (e.g. change blindness, inattentional blindness, transsaccadic integration) indicate that observers are often very poor at reporting changes to their visual environment. Such evidence has been used to suggest that the spatio-temporal coherence needed to represent change can only occur in the presence of focused attention. In four experiments we use modified change blindness tasks to demonstrate (a) that sensitivity to change does occur in the absence of awareness, and (b) this sensitivity does not rely on the redeployment of attention. We discuss these results in relation to theories of scene perception, and propose a reinterpretation of the role of attention in representing change. 相似文献
59.
Edward Thornton 《希帕蒂亚:女权主义哲学杂志》2019,34(2):348-368
Feminist philosophy has offered mixed opinions on the collaborative projects of Gilles Deleuze and Félix Guattari. But although there has been much discussion of the political expediency of what Deleuze and Guattari do say about sexual difference, this article will outline what is absent from Anti‐Oedipus and A Thousand Plateaus (the two volumes comprising Capitalism and Schizophrenia). Specifically, I will argue that though Deleuze and Guattari offer a historical account of a range of power structures—most notably capitalism, but also despotism, fascism, and authoritarianism—they give no such account of the development of patriarchy. Secondarily, this article will argue that Deleuze and Guattari's analysis of contemporary power relations could be improved by adding an accompanying analysis of the institution of patriarchy. After offering a detailed account of the technical vocabulary used by Deleuze and Guattari for the analysis of political institutions, I will argue that what their work requires is an account of how patriarchy is historically produced by an “abstract machine” of masculinity. This article will finish with some suggestions for the way that such an account could be given via an analysis of the abstract machine of phallusization. 相似文献
60.
The fear-potentiating effects of fluprazine hydrochloride were explored in a series of five experiments. The drug was found to strongly inhibit entry into a novel open field, exploration of a complex maze, or approach to a novel object placed in the animal's home cage. Time sampling techniques were used to assess drug effects on frequencies of immobility, activity, and grooming and rearing responses prior to and for 70 min after footshock. There were no group differences during the 10 min immediately following shock but the groups diverged steadily in immobility, activity, and grooming for the remainder of the observations. Post-shock activity and grooming responses increased steadily towards baseline values among control mice but remained at low levels or declined among drug-treated mice. Immobility responses declined steadily among control mice but increased substantially among the fluprazine-treated mice throughout post-shock observations. Pairs of male mice treated with fluprazine were also found to maintain greater intermouse distances in a novel linear runway than pairs of undrugged adult males, juvenile males, or male-female pairs. It is suggested that fluprazine hydrochloride both potentiates fear and alters its time course in addition to interfering in some way with normal olfactory processes. 相似文献