Biomedical subjects

Susan Carey

Publications and source records attributed to Susan Carey.

20 records · Page 2Linked to original sources

PubMed2002

The representations underlying infants' choice of more: object files versus analog magnitudes.

A new choice task was used to explore infants' spontaneous representations of more and less. Ten- and 12-month-old infants saw crackers placed sequentially into two containers, then were allowed to crawl and obtain the crackers from the container they chose. Infants chose the larger quantity with comparisons of 1 versus 2 and 2 versus 3, but failed with comparisons of 3 versus 4, 2 versus 4, and 3 versus 6. Success with visible arrays ruled out a motivational explanation for failure in the occluded 3-versus-6 condition. Control tasks ruled out the possibility that presentation duration guided choice, and showed that presentation complexity was not responsible for the failure with larger numbers. When crackers were different sizes, total surface area or volume determined choice. The infants 'pattern of success and failure supports the hypothesis that they relied on object-file representations, comparing mental models via total volume or surface area rather than via one-to-one correspondence between objectfiles.

Attention↗

PubMedDate not supplied

Determinants of exercise encouragement practices in hemodialysis staff.

The objective of this study was to survey patient care staff to (a) determine their perceived skills for and attitudes toward assessing physical functioning and encouraging exercise, (b) assess practice related to assessment of physical functioning and exercise encouragement, and (c) identify factors that predict encouragement of exercise in patient care staff. This was a cross-sectional, descriptive study in which questionnaires were completed by 100 patient care staff (RN, LVN, RD, SW, and patient care technicians) in five freestanding hemodialysis clinics. Frequency responses were calculated for the items of interest, and multiple regression analysis was performed to identify predictor variables of exercise encouragement practice (i.e., frequency of encouragement of exercise to patients). Four variables significantly predicted exercise encouragement activity: job position requiring professional training, the perception that patients lacked motivation to exercise, the perception that the staff member did not have skills to motivate patients to exercise, and the perception that it was not a part of the job responsibility.

Attitude of Health Personnel↗