View in EDS HTML Full Text PDF Full Text

Physiological and Behavioral Parameters of Infants' Categorization: Changes in Heart Rate and Duration of Examining across Trials

Saved in:
Bibliographic Details
Title: Physiological and Behavioral Parameters of Infants' Categorization: Changes in Heart Rate and Duration of Examining across Trials
Language: English
Authors: Elsner, Birgit, Pauen, Sabina, Jeschonek, Susanna
Source: Developmental Science. Nov 2006 9(6):551-556.
Availability: Wiley-Blackwell. 350 Main Street, Malden, MA 02148. Tel: 800-835-6770; Tel: 781-388-8598; Fax: 781-388-8232; e-mail: cs-journals@wiley.com; Web site: http://www.wiley.com/WileyCDA/
Peer Reviewed: Y
Physical Description: PDF
Page Count: 6
Publication Date: 2006
Document Type: Journal Articles
Reports - Research
Descriptors: Metabolism, Infants, Classification, Physiology, Task Analysis, Attention, Familiarity, Measures (Individuals), Cognitive Processes, Behavior Patterns
DOI: 10.1111/j.1467-7687.2006.00532.x
ISSN: 1363-755X
Abstract: This report investigates the relations between duration of examining and heart rate (HR) across several trials of an object-examination task. A total of N= 20 11-month-olds were familiarized with a sequence of 10 different exemplars from the same global category (animals or furniture) before they received an exemplar from the contrasting category at test. Consistent with previous findings, HR was lower during states of focused attention (i.e. examining) than during states of casual attention (i.e. looking) or non-looking. Over the familiarization trials, examining stayed about the same, while mean HR increased. At test, examining increased and mean HR decreased, indicating that infants focused their attention on the out-of-category object. Psychophysiological and behavioral measures of attention were systematically related over trials, suggesting that heart rate provides a suitable objective measure to study infants' categorization performance in object-examination tasks.
Abstractor: As Provided
Number of References: 20
Entry Date: 2009
Accession Number: EJ850138
Database: ERIC
Full text is not displayed to guests.
Description
Abstract:This report investigates the relations between duration of examining and heart rate (HR) across several trials of an object-examination task. A total of N= 20 11-month-olds were familiarized with a sequence of 10 different exemplars from the same global category (animals or furniture) before they received an exemplar from the contrasting category at test. Consistent with previous findings, HR was lower during states of focused attention (i.e. examining) than during states of casual attention (i.e. looking) or non-looking. Over the familiarization trials, examining stayed about the same, while mean HR increased. At test, examining increased and mean HR decreased, indicating that infants focused their attention on the out-of-category object. Psychophysiological and behavioral measures of attention were systematically related over trials, suggesting that heart rate provides a suitable objective measure to study infants' categorization performance in object-examination tasks.
ISSN:1363-755X
DOI:10.1111/j.1467-7687.2006.00532.x