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Article

Reaching with one arm to the other: Coordinating touch, proprioception, and action during infancy

Chinn, L K
Author Chinn, L K Department of Psychology, Tulane University, New Orleans, LA 70118, USA
Hoffmann, M
Author Hoffmann, M Department of Cybernetics, Faculty of Electrical Engineering, Czech Technical University in Prague, 160 00 Prague 6, Czech Republic
Leed, J E
Author Leed, J E Department of Psychology, Tulane University, New Orleans, LA 70118, USA
Lockman, J J
Author Lockman, J J Department of Psychology, Tulane University, New Orleans, LA 70118, USA. Electronic address: lockman@tulane.edu

Journal of experimental child psychology. 2019 ; 183 (-) : 19-32. [pub] 20190306

J Exp Child Psychol
ISSN 1096-0457
Medvik
Source

Reaching to target locations on the body has been studied little despite its importance for adaptive behaviors such as feeding, grooming, and indicating a source of discomfort. This behavior requires multisensory integration given that it involves coordination of touch, proprioception, and sometimes vision as well as action. Here we examined the origins of this skill by investigating how infants begin to localize targets on the body and the motor strategies by which they do so. Infants (7-21 months of age) were prompted to reach to a vibrating target placed at five arm/hand locations (elbow, crook of elbow, forearm, palm, and top of hand) one by one. To manually localize the target, infants needed to reach with one arm to the other. Results suggest that coordination increases with age in the strategies that infants used to localize body targets. Most infants showed bimanual coordination and usually moved the target arm toward the reaching arm to assist reaching. Furthermore, intersensory coordination increased with age. Simultaneous movements of the two arms increased with age, as did coordination between vision and reaching. The results provide new information about the development of multisensory integration during tactile localization and how such integration is linked to action.

Abstract

The Leeds University maternity audit project : 17th European Congress of Obstetrics and Gynaecology. Prague, May 22-25, 2002. Abstracts. Obstetrics and Materno-fetal Medicine

Thornton, J. G
Author Thornton, J. G

Česká gynekologie. 2002 ; Roč. 67 (Suppl. 2) : s. 75.

ISSN 1210-7832
Medvik
Source

17th European Congress of Obstetrics and Gynaecology. 2002 ; Roč. 67 (Suppl. 2) : s. 75.

ISSN 1210-7832
Medvik
Source

Book

Palliative cancer care : Leeds 10-11 February 1987

Copenhagen : WHO, 1989

40 s. : il.

Article

Volné radikály u onemocnění plic
[Free radicals in respiratory diseases]

... Inhalation of free radicals leed to antiproteinases inactivation and contributes to development of pulmonary ...

Studia pneumologica et phtiseologica. 1999 ; Roč. 59 (č. 5) : s. 211-215.

ISSN 0371-2222
Medvik
Source

Autoři uvádějí přehled současných poznatků o roli volných radikálů a antioxidantů v patogeneze a terapii plicních onemocnění, jmenovitě u cystické fibrozy, zánětů plic, hyperoxického postižení plic novorozenců, syndromu dechové tísně dospělých, bronchiálního astmatu a poškození pUc znečištěným vzduchem v okolí. Kouření cigaret je spojeno s příjmem velkého kvanta volných radikálů, kuřáci mívají nižší antioxidační kapacitu séra a snížené hladiny vitaminu C, E a redukovaného glutathionu, které se na inaktivaci volných radikálů podílejí. Při kouření vzniká oxidační stres a vazokonstrikcie plicních cév. Ihnalace volných radikálů způsobuje m. j. i inaktivaci antiproteáz a prispívá ke vzniku plicní rozedrny. Podávání antioxidantů spolu s antiflogistiky se může uplatnit v terapii plicních onemocnění.

The authors summarized actual informations concerning the role of free radicals and antioxidants in the pathogenesis and therapy of pulmonary disease, namely in cystic fibrosis, pneumonias, hyperoxic lung injury of newborns, ARDS, bronchials asthma and pulmonary damage by environmental air pollution. Cigarette smokers usually have decreased antioxidative serum capacity as well levels of vitamin C, E and reduced glutathione, those substances take in free radicals inactivation. Smoking induces oxidative stress and pulmonary vasoconstriction. Inhalation of free radicals leed to antiproteinases inactivation and contributes to development of pulmonary emphysema. Therapeutic application of antioxidants, together wiih antiphlogistics can be effective in pulmonary diseases treatment.