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111.
Theories of visual word recognition have proposed that a word’s phonological properties can be involved in reading visually presented words. Further, it is commonly supposed that this phonological information can be arrived at in at least two ways: (1) by looking it up after identifying the word visually (a lexical route) or (2) by rule-governed translating of the word’s orthographic code (a nonlexical route), Four experiments were conducted to examine whether phonological information is automatically accessed in visual word recognition, and, if so, how this occurs. A priming technique was used with a display sequence of mask, prime, target, mask. Subjects were asked to make written responses to any words that they thought were present, and prime identification was minimal. A facilitatory effect of phonological priming on target identification occurred when primes were homophones of targets. However, no similar facilitation occurred when the prime was a nonword homophone of the target. Further, the homophone priming effect was found irrespective of whether targets followed the spelling-to-sound rules of English. The results suggest that automatic access to phonology can occur in visual word recognition and that it operates by means of a lexical route. 相似文献
112.
There have been many efforts to infer causation from association byusing statistical models. Algorithms for automating this processare a more recent innovation. In Humphreys and Freedman[(1996) British Journal for the Philosophy of Science
47, 113–123] we showed that one such approach, by Spirtes et al., was fatally flawed. Here we put our arguments in a broader context and reply to Korb and Wallace [(1997) British Journal for thePhilosophy of Science
48, 543–553] and to Spirtes et al.[(1997) British Journal for the Philosophy of Science
48, 555–568]. Their arguments leave our position unchanged: claims to have developed a rigorous engine for inferring causation from association are premature at best, the theorems have no implications for samples of any realistic size, and the examples used to illustrate the algorithms are indicative of failure rather than success. The gap between association and causation has yet to be bridged. 相似文献
113.
Visual Marking of Locations and Feature Maps: Evidence from Within-dimension Defined Conjunctions 总被引:4,自引:0,他引:4
Christian N. L. Olivers Derrick G. Watson Glyn W. Humphreys 《The Quarterly Journal of Experimental Psychology Section A: Human Experimental Psychology》1999,52(3):679-715
Recently, Watson and Humphreys (1997, 1998) proposed that the selection of new visual events can be aided by the top-down inhibition of old information-visual marking (VM) and that the mechanisms of marking differ for static and moving stimuli. Stationary stimuli are marked by location-based inhibition, whereas moving stimuli are marked by inhibition applied at the level of whole-feature maps. Here we provide a test of this 'two-mechanism' account. We show that static items can be marked even when old and new stimuli contain the same features and so cannot be distinguished by activation within a unique feature map. However, moving old items could not be marked unless they possessed a unique feature (colour). Manipulations of grouping strength, both within and between distractor sets, did not affect the basic findings. The results support the existence of two mechanisms for VM and counter an object-based inhibition explanation of performance. 相似文献
114.
Luminance-increment detection: capacity-limited or not? 总被引:3,自引:0,他引:3
H J Müller G W Humphreys 《Journal of experimental psychology. Human perception and performance》1991,17(1):107-124
Three experiments investigated whether spatial cuing influences luminance-increment detection accuracy. Ss saw multiple-target displays and responded yes or no to 4 locations, including cued position. To test whether cuing effects are due to the load on visual short-term memory from the number of locations, Experiments 1 and 2 presented displays with 4 or 8 relevant locations. Experiment 1 used peripheral cues; Experiment 2 used central cues. Significant cuing effects were less marked with 4- than 8-location displays. Cuing effects were largest with multiple targets, but a small reliable effect remained even with single targets. Experiment 3 replicated the single-target effect with predominantly multiple- and single-target displays. A capacity-limited selection account is developed for these findings and their implications are discussed for separate central and peripheral cuing mechanisms and the locus of spatial cuing effects. 相似文献
115.
Humphreys MS 《Memory & cognition》1976,4(2):221-232
A role for relational information was examined for the paradigm in which recognition-memory performance on items tested in the same context in which they were studied is compared with performance on items tested in different contexts. Over a series of five experiments, randomly formed pairs were used to manipulate the context of high-frequency English words. Comparisons were made between instructional manipulations designed to influence the use of relational information, and between yes/no, confidence rating (both between- and within-subject), and forced-choice tasks. There was a context effect not due to the use of inappropriate response strategies. However, high-criterion subjects resembled those subjects who were specifically instructed to use relational information, while low-criterion subjects showed little or no context effect. A model specifying the relationship between item and relational information and how relational information influences decisions in recognition-memory paradigms was proposed. 相似文献
116.
117.
Mary Jean Craig Michael S. Humphreys Thomas Rocklin William Revelle 《Journal of research in personality》1979,13(4):404-419
The personality dimensions of impulsivity and neuroticism have been linked to differences in basal arousal. The hypothesis tested was whether these personality variables and caffeine have additive effects on arousal. All subjects received three paired-associate trials on each of two neutral control lists, two lists with semantically similar stimuli, and two lists with acoustically similar stimuli. Half of the subjects received caffeine and half placebo. Although significant interactions with personality and drug condition were obtained, the ordering of the conditions was inconsistent with the assumption that the arousal performance curve is single peaked. Further, S. Schwartz's (Journal of Research in Personality, 1975, 9, 217–225) hypothesis that in paired-associate learning high arousal and low arousal subjects process semantic and physical information differentially was not supported. The general issue of how to determine whether individual differences in performance are caused by differences in arousal is discussed. 相似文献
118.
Lloyd G. Humphreys 《Intelligence》1978,2(1):1-5
The data of Welsh and Baucom (1977) have been reanalyzed using correlational analysis for the complete distributions in place of the analysis of variance of extreme groups. The analysis reveals a number of statistically significant correlations between composites of M-F scales and several measures of intelligence, but these are trival in size. Also the sign of the correlations depends directly on which M-F scales are selected to form composites. One can obtain a correlation between either masculinity and intelligence or femininity and intelligence depending on whether the supposed trait is measured from scales formed from the Adjective Check List or from a combination of the MMPI and the SVIB. 相似文献
119.
Tulving and Wiseman (1975) reported that there was a systematic relationship between the proportion of words recognized and the proportion of recallable words recognized. This relationship indicates a moderate positive covariation between recognition and recall across subject items, when each subject is given both types of test, recognition followed by recall. In this paper it is shown that the theoretical enterprise of trying to account for this relationship is fruitless unless the data are corrected for sequential testing effects. Evidence on the existence of these effects is reviewed, and then it is shown how they introduce a measure of dependency between recognition and recall. When the data are corrected, the theories proposed by Begg (1979) and Flexser and Tulving (1978) are shown to be poorly supported. The utility of the general enterprise of determining the relationship between recognition and recall by these means is also questioned. 相似文献
120.
In two experiments, we explored the role of foreknowledge on visual search for targets defined along the size continuum. Targets were of large, medium, or small size and of high or low similarity relative to the distractors. In Experiment 1, we compared search for known and unknown singleton feature targets as a function of their size and similarity to the distractors. When distractor similarity was high, target foreknowledge benefited targets at the end of the size continuum (i.e., large and small) relatively more than targets of medium size. In Experiment 2, participants were given foreknowledge of what the target was not The beneficial effect of foreknowledge for endpoint targets was reduced. The data indicate the role of top-down templates in search, which can be "tuned" more effectively for targets at the ends of feature dimensions. 相似文献