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151.
Common region: a new principle of perceptual grouping. 总被引:6,自引:0,他引:6
S E Palmer 《Cognitive psychology》1992,24(3):436-447
A new principle of grouping is proposed that is based on elements being located within a common region of space. Demonstrations analogous to Wertheimer's original displays show that this factor strongly influences perceived grouping and is capable of overcoming the effects of other powerful grouping factors such as proximity and similarity. Grouping by common region is further shown to depend on perceived depth relations, indicating that it is influenced by processes that occur after at least some depth perception has been achieved. Further demonstrations suggest that it is dominated by the smallest background area and that it can follow a hierarchical embedding scheme. It is argued that common region cannot be reduced to the effects of proximity, closure, or any other previously known factor and therefore constitutes a genuinely new principle of grouping. 相似文献
152.
Palmer SE 《The Behavioral and brain sciences》1999,22(6):923-43; discussion 944-89
The relations among consciousness, brain behavior, and scientific explanation are explored in the domain of color perception. Current scientific knowledge about color similarity, color composition, dimensional structure, unique colors, and color categories is used to assess Locke's "inverted spectrum argument" about the undetectability of color transformations. A symmetry analysis of color space shows that the literal interpretation of this argument--reversing the experience of a rainbow--would not work. Three other color to color transformations might work, however, depending on the relevance of certain color categories. The approach is then generalized to examine behavioral detection of arbitrary differences in color experiences, leading to the formulation of a principled distinction, called the "isomorphism constraint," between what can and cannot be determined about the nature of color experience by objective behavioral means. Finally, the prospects for achieving a biologically based explanation of color experience below the level of isomorphism are considered in light of the limitations of behavioral methods. Within-subject designs using biological interventions hold the greatest promise for scientific progress on consciousness, but objective knowledge of another person's experience appears impossible. The implications of these arguments for functionalism are discussed. 相似文献
153.
Anthony Palmer 《Philosophical Investigations》1999,22(1):98-105
Books reviewed in this essay:
Wolfgang Carl, Frege's Theory of Sense and Reference: Its Scope and its Origins
William P. Alston, A Realist Conception of Truth 相似文献
Wolfgang Carl, Frege's Theory of Sense and Reference: Its Scope and its Origins
William P. Alston, A Realist Conception of Truth 相似文献
154.
Three experiments were conducted to determine whether human observers could identify the gender of 40 domestic cats (20 female, 20 male) depicted in individual color photographs. In experiment 1a, observers performed at chance for photographs depicting whole cats, cat heads (bodies occluded), and cat bodies (heads occluded). Experiment 1b showed that chance performance was also obtained when the photographs were full-face close-ups of the cats. Experiment 2a revealed that even with gender-identification training on 30 (15 female, 15 male) of the 40 face close-ups, observers were unable to generalize their training to reliably identify the gender of the 10 remaining test faces (5 female, 5 male). However, experiment 2b showed that gender-identification training with the 14 most accurately identified faces from experiment 1b (7 female, 7 male) was successful in raising gender identification of the 10 test faces above chance. Experiments 3a and 3b extended this facilitative effect of gender-identification training to a population of animal-care workers. The findings indicate that, with appropriate training, human observers can identify the gender of cat faces at an above-chance level. A perceptual category learning account emphasizing the on-line formation of differentiated male versus female prototypes during training is offered as an explanation of the findings. 相似文献
155.
156.
Performance on whole comparisons of two whole objects was compared to that for partial comparisons of a whole object and a part. In particular,same-different comparisons were measured for sequential displays of two-dimensional line figures. The comparisons were analogous to those in the word priority paradigm (Johnson, 1975). The whole comparisons were found to be more accurate and faster than the partial comparisons. This whole advantage was also found for accuracy using a two-alternative forced-choice procedure. This effect was found for brief displays of a single object and for longer duration displays of two objects. It was also found for three different sets of line figures. In contrast, the whole advantage was not found for unconnected figures. These findings were interpreted in the context of hierarchical representations of objects and parts. 相似文献
157.
The relationships between glycosylated hemoglobin levels as an index of metabolic control, life events occurring in the previous year, and general adjustment in the areas of attitude towards diabetes, independence, peer, school, and family relationships were investigated in 37 adolescents with insulin-dependent diabetes mellitus. The number or type of life events did not show a relationship with metabolic control. As measured by the Sullivan Diabetic Adjustment Scale, diabetic adolescents who were in better metabolic control reported more conflict regarding family relationships and issues of independence than did those in lesser control. 相似文献
158.
Philip Palmer Bayer 《Journal of counseling and development : JCD》1975,54(4):204-204
159.
160.
L L Palmer 《Perceptual and motor skills》1976,42(3):721-724
Eye dominance tests (24 comparisons) varied markedly in aggreement with each other for 225 consecutive screening evaluation (5 yr. to 55 yr.) in a reading clinic. 相似文献