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141.
Visual salience and perceptual load may both influence the efficiency of visual selection. Recently, Gibson and Bryant (2008) showed that perceptual load can dominate color salience in a distractor interference paradigm. The purpose of the present study was to investigate the possibility that knowledge (of color or load) may modulate the relative operation of these two mechanisms. Consistent with previous findings, perceptual load dominated color salience, but only in certain contexts in which display load was mixed and high-load displays preceded other high-load displays. More important, color salience dominated perceptual load in other contexts in which display load was mixed and low-load displays preceded high-load displays. In addition, color salience also dominated perceptual load in contexts in which display load was fixed and advance knowledge of load was available. Altogether, the present findings suggest that the competition between color salience and perceptual load can vary as a function of task context, thereby supporting top-down accounts, although the precise aspect of task context remains to be identified. 相似文献
142.
Sharhidd Taliep M St Clair Gibson A Gray J van der Merwe L Vaughan CL Noakes TD Kellaway LA John LR 《Perception》2008,37(1):96-105
The differences in P300 latency, P300 amplitude, response selection, and reaction time between skilled and less-skilled cricket batsmen have been investigated. Eight skilled and ten less-skilled right-handed batsmen each viewed 100 in-swing, 100 out-swing, and 40 slower deliveries displayed in random sequence from projected video footage whilst their responses and electroencephalograms were recorded. Logistic regression was used to derive a discriminative function for the P300 data. This was done to determine whether the skilled batsmen differed from the less-skilled batsmen on the basis of pooled P300 amplitude and latency data. All the batsmen were correctly characterised as being skilled or less-skilled. Logistic regression equations with reaction time and correctness of response data indicated that behavioural data do not correctly classify skilled performance. It is suggested that skilled cricket batsmen have a superior perceptual decision-making ability compared with less-skilled cricket batsmen, as measured by P300 latency and amplitude. This appears to be the first study showing a link between skill and cerebral cortical activity during a perceptual cricket batting task and it could pave the way for future studies on mental processing in cricket batsmen. 相似文献
143.
144.
Jessica Carter 《Synthese》2008,163(2):119-131
This paper compares the statement ‘Mathematics is the study of structure’ with the actual practice of mathematics. We present
two examples from contemporary mathematical practice where the notion of structure plays different roles. In the first case
a structure is defined over a certain set. It is argued firstly that this set may not be regarded as a structure and secondly that what is important
to mathematical practice is the relation that exists between the structure and the set. In the second case, from algebraic
topology, one point is that an object can be a place in different structures. Which structure one chooses to place the object
in depends on what one wishes to do with it. Overall the paper argues that mathematics certainly deals with structures, but
that structures may not be all there is to mathematics.
I wish to thank Colin McLarty as well as the anonymous referees for helpful comments on earlier versions of this paper. 相似文献
145.
White KK Abrams L Zoller SM Gibson SM 《Quarterly journal of experimental psychology (2006)》2008,61(7):977-985
Despite considerable research on language production errors involving speech, little research exists in the complementary domain of writing. Two experiments investigated the production of homophone substitution errors, which occur when a contextually appropriate word (e.g., beech) is replaced with its homophone (e.g., beach tree). Participants wrote down auditorily presented sentences containing dominant or subordinate homophones. Homophones were preceded by a lexical prime that overlapped in phonology and orthography (e.g., teacher) or only orthography (e.g., headmaster) with the target homophone. Results showed more substitution errors when the context elicited a subordinate homophone than when it elicited a dominant homophone. Furthermore, both types of primes equivalently increased production of homophone errors relative to control words (e.g., lawyer), suggesting that only orthographic overlap between the prime and target was necessary to influence errors. These results are explained within dual-route models of spelling, which postulate an interaction between lexical and sublexical routes when spelling. 相似文献
146.
Dr Karen Grace Dyck Becki L. Cornock Greg Gibson Annamarie A. Carlson 《Australian psychologist》2008,43(4):239-248
Abstract: The Rural and Northern Program (R&NP) of the University of Manitoba's Department of Clinical Health Psychology (DCHP) is a unique training and service delivery platform that was developed in response to the scarcity of psychological services in rural and northern areas of the province of Manitoba, Canada. Since 1996 rural and northern‐based psychologists, in conjunction with the faculty based in Winnipeg (Manitoba's largest city) have offered training to two interns and one postdoctoral resident (resident) yearly. The current article discusses the nature of the program, the regions of Manitoba that the program services, and recruitment and retention data. The authors conclude by offering suggestions for creating sustainable rural/northern psychological practice. 相似文献
147.
Thought-shape fusion (TSF) is a cognitive distortion that can be induced experimentally and is associated with eating pathology. The current study was conducted in order to elucidate the effects of TSF induction in females with eating disorders (n=35), as well as in restrained eaters (n=38) and unrestrained eaters (n=39). It was hypothesized that TSF induction would result in anxiety, guilt, increased feelings of fatness, perceived weight gain and feelings of moral wrong-doing relative to an anxiety and control induction. It was further hypothesized that restrained eaters and individuals with eating disorders would exhibit a stronger reaction to a TSF induction than would unrestrained eaters. The results indicated that, as predicted, TSF can be induced in individuals both with and without eating disorders, and individuals with eating disorders reported the highest levels of "state" TSF after the induction relative to the non-clinical controls. However, contrary to expectations, restrained eaters reported higher levels of perceived weight gain and moral wrong-doing after the anxiety induction (but not the TSF induction) relative to the control induction. Potential mechanisms for this pattern of results are discussed, and the clinical implications of research on TSF are also considered. 相似文献
148.
Three experiments demonstrated that the use and effectiveness of self-presentation strategies are affected by time. In Experiment 1, participants used more indirect self-presentation statements for the distant than near future, but used more direct self-presentation statements for the near than distant future. In Experiment 2, participants for whom indirect self-presentation strategies were made accessible rated a future interview as more temporally distant than those for whom direct self-presentation strategies were made accessible. In Experiment 3, participants rated their self-presentation attempts as more effective if they used direct strategies for the near future and indirect strategies for the distant future. Implications for studying the timing of self-presentation and its relation to temporal construal levels are discussed. 相似文献
149.
Kathryn Dingman Boger Martha C Tompson Margaret J Briggs-Gowan Lauren Escott Pavlis Alice S Carter 《Journal of family psychology》2008,22(5):784-788
Expressed emotion (EE), an index of family member criticism and emotional overinvolvement, predicts outcome among adults and children with mental disorders. However, limited research exists on factors contributing to EE. Aims of the current study were to (a) examine EE in mothers of young children; (b) assess relationships between demographic factors and EE in a diverse sample; and (c) investigate whether family stress and functioning, including quality of marital relationship, life events, maternal stress, and family environment, predict EE. In the current study, 276 mothers completed questionnaires when their children were between 1 and 3 years of age and a measure of EE when their children were in kindergarten. Results indicated that family expressiveness was the most consistent predictor of EE. Further research seems warranted to better delineate associations between family functioning and EE. 相似文献
150.
Melina A. Kunar Randall Carter Michael Cohen Todd S. Horowitz 《Psychonomic bulletin & review》2008,15(6):1135-1140
Recent research has shown that holding telephone conversations disrupts one’s driving ability. We asked whether this effect
could be attributed to a visual attention impairment. In Experiment 1, participants conversed on a telephone or listened to
a narrative while engaged in multiple object tracking (MOT), a task requiring sustained visual attention. We found that MOT
was disrupted in the telephone conversation condition, relative to single-task MOT performance, but that listening to a narrative
had no effect. In Experiment 2, we asked which component of conversation might be interfering with MOT performance. We replicated
the conversation and single-task conditions of Experiment 1 and added two conditions in which participants heard a sequence
of words over a telephone. In the shadowing condition, participants simply repeated each word in the sequence. In the generation
condition, participants were asked to generate a new word based on each word in the sequence. Word generation interfered with
MOT performance, but shadowing did not. The data indicate that telephone conversation disrupts attention at a central stage,
the act of generating verbal stimuli, rather than at a peripheral stage, such as listening or speaking. 相似文献