Dataset Information

Fitting handled objects into apertures by 17- to 36-month-old children: The dynamics of spatial coordination.

ABSTRACT: Handled artifacts are ubiquitous in human technology, but how young children engage in spatially coordinated behaviors with these artifacts is not well understood. To address this issue, children (N = 30) from 17-36 months were studied with motion tracking technology as they fit the distal segment of a handled artifact into a slot. The handle was orthogonal to the distal segment. Results revealed developmental differences in prospective control tied to the artifact's spatial structure. Although all children accomplished fitting, younger children first oriented the handle and then the distal segment (and only after the distal segment contacted the slot), whereas children by 3 years of age oriented the handle and distal segment simultaneously in different spatial planes, prior to the distal segment contacting the slot. Choosing an effective grip posture proved difficult for all children. Results are discussed in terms of how children begin to relate their actions to the 3-dimensional spatial structure of handled objects and the prospective control of object movement in multiple spatial planes. (PsycINFO Database Record

SUBMITTER: Jung WP

PROVIDER: S-EPMC5788705 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

Fitting handled objects into apertures by 17- to 36-month-old children: The dynamics of spatial coordination.

Jung Wendy P WP Kahrs Björn A BA Lockman Jeffrey J JJ

Developmental psychology 20171023 2

Handled artifacts are ubiquitous in human technology, but how young children engage in spatially coordinated behaviors with these artifacts is not well understood. To address this issue, children (N = 30) from 17-36 months were studied with motion tracking technology as they fit the distal segment of a handled artifact into a slot. The handle was orthogonal to the distal segment. Results revealed developmental differences in prospective control tied to the artifact's spatial structure. Although ...[more]

PMID: 29058933

Similar Datasets

Project description:Open-label, multicenter, randomized study (NCT00289913) evaluated immunogenicity, safety, and tolerability of Vaqta (hepatitis A vaccine) administered with PedvaxHIB (Haemophilus b conjugate vaccine [Meningococcal protein conjugate]) & Infanrix (diphtheria/tetanus/acellular pertussis vaccine) in healthy, 15-month-old children. Five groups were evaluated: Group 1 received Vaqta/Infanrix PedvaxHIB on Day-1 and Vaqta at Week-24; Group 2 received Infanrix PedvaxHIB on Day-1, Vaqta at Week-4, and Vaqta at Week-28; Group 3 received Vaqta/PedvaxHIB on Day-1 and Vaqta Week-24; Group 4 received PedvaxHIB on Day-1, Vaqta at Week-4, and Vaqta at Week-28; and Group 5 (safety only) received Vaqta on Day-1 and Vaqta at Week-24. Hepatitis A seropositivity rate (SPR: ≥10 mIU/mL), Hib capsular polyribosylribitol phosphate (PRP) antibody response (>1.0 μg/mL), and geometric mean titers (GMT) to pertussis toxin (PT), pertussis filamentous hemagglutinin antibody (FHA), and pertactin were examined. Non-inferiority statistical criteria required a difference >10% in Hepatitis A SPR, PRP >1.0 μg/mL, and a GMT ratio of >0.67 for pertussis antigens. Injection-site and systemic adverse events (AEs) and daily temperatures were collected. Hepatitis A SPRs were 100% for Groups 1-4, regardless of initial serostatus. Anti-PRP titers were comparable (98.1% - 97.0%) for Groups 1-4. GMT and mean fold-rise were comparable for all 3 pertussis antigen components between concomitant and nonconcomitant groups. Criteria for non-inferiority of immune responses for concomitant vs nonconcomitant administration were met for Hepatitis A, Hib, and pertussis antigens. No statistically significant incidence differences of individual AEs were found between concomitant and nonconcomitant groups. No serious vaccine-related AEs or deaths were reported; no subject discontinued due to an AE. Immune responses to Vaqta, PedvaxHIB, and Infanrix given concomitantly were non-inferior to nonconcomitant responses. Vaqta administered with PedvaxHIB & Infanrix had an acceptable safety profile in 15-month-old children.

Dataset Information

Fitting handled objects into apertures by 17- to 36-month-old children: The dynamics of spatial coordination.

Publications

Fitting handled objects into apertures by 17- to 36-month-old children: The dynamics of spatial coordination.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets