2008, Number 4
Alteraciones psicomotoras en ratas tipo wistar, al perder la binocularidad
Etulain-González A, Salas-Cervantes MR, Moguel-Ancheita S, Vergara-García P
Full text
Language: Spanish
References: 11
Page: 217-227
PDF size: 96.86 Kb.
ABSTRACT
Introduction: Binocular vision is the result of the anterior displacement of the ocular globes and of the presence of a discriminatory macula in each eye. When it is lost stereoscopic vision is impossible, impeding the development of difficult abilities.Purpose: To identify psychomotor, learning and memory alterations caused by the interruption of binocularity.
Material and methods: Experimental, longitudinal, prospective and open study. 28 wistar rats were used, 13 female and 15 male, one month old, weighting 80-100 g.
Results: 28 rats were studied. For the interruption of binocularity, a tarsorrhaphy procedure was carried out on one eye; the rats were submitted to psychomotor tests (hopelessness, balance, multiple attempts, open field and memory) before and after the tarsorrhaphy. Statistically significant alterations were found in the balance, hopelessness, multiple attempts and memory test. The open field test did not show significant changes.
Conclusions: Loss of binocularity diminishes the capacity of learned motor functions and prevents the development of new abilities. The present observations in rats can be extrapolated to human beings. These demonstrate the value of binocularity in the visual-kinesthetic exploration of the environment by the infant, for the normal development and manifestation of their visual-space performance.
REFERENCES