PubMed Health⌕ Search

SEARCH · PubMed Health

Results for “Knowledge”

Explore indexed PubMed citations for clinical trials, systematic reviews and public health research. Read source abstracts and follow each citation to its original PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 181 records · Page 10Linked to original sources
PubMed1987

Knowledge about hand shaping and knowledge about objects.

Our two experiments investigated associations between cognitive representations of objects and hand-shape categories. Hand configurations were partitioned according to prehensility and the size of the contacting surface, resulting in the classes: pinch, poke, palm, and clench. Experiment 1 elicited object names in response to configuration-name cues, provided ratings of the relevance of each configuration to a set of objects, and probed for the functions determining such relevance. Cueing with a configuration class elicited an associated object category with substantial intersubject agreement, and vice versa. Both the object categories and the functions associated with the four hand-configuration classes differed substantially, although the same object could be associated to some extent with multiple configurations, given variations in function. Experiment 2 elicited the names of hand-configuration classes in response to unfamiliar forms, which varied systematically in depth and the size of the projecting picture-plane surface. The modal response, response time, and degree of intersubject agreement were directly related to these variables. These structural variables, however, did not adequately predict shaping responses to real objects, as ascertained from Experiment 1. The results have implications for cognitive representation of motor categories and hand shaping in response to objects.

Journal Article↗
PubMed1995

Health implications of Mediterranean diets in light of contemporary knowledge. 1. Plant foods and dairy products.

Several carefully studied populations in Mediterranean countries and in some areas in Asia where traditional diets consisted largely of foods of plant origin exhibit low rates of many chronic diseases and long life expectancies. Many case-control and prospective studies have provided further evidence that high consumption of plant foods confers numerous health benefits. Investigations support links between increased vegetable, fruit, and fiber consumption, and lower rates of several cancers, coronary heart disease (CHD), neural tube defects, and cataracts. Although the mechanisms are not fully understood, carotenoids, folic acid, and fiber, all abundant in the Mediterranean diet, appear to play important roles in prevention of these diseases. In contrast, much evidence suggests that high consumption of full-fat dairy products is likely to increase CHD risk. Epidemiologic studies have not provided evidence that high dairy product consumption by adults prevents fractures; in fact, the results of several studies suggest positive associations. Thus, the abundant fruit, vegetables, and whole grains, and the low to moderate intake of dairy products in traditional Mediterranean diets are likely to have contributed to the low rates of numerous chronic diseases observed in these populations.

Bone and Bones↗
PubMed1984

Comments on Shimp's (1983) double dissociation between knowledge and tacit knowledge.

Shimp (1983) found in five pigeons "double dissociation" between the distribution of pairs of long and short reinforced interresponse times and "self-reports," obtained by symbolic matching to sample, concerning these interresponse times. This result can be explained by assuming that the birds used a fixed temporal interval as matching criterion, independently of which pattern of interresponse times was reinforced.

Journal Article↗