Abstract

BLANCO MARTINEZ, JENNIFER et al. Gender and age influence in the human capacityof facial differences detection. Acta biol.Colomb. [online]. 2009, vol.14, n.1, pp.121-134. ISSN 0120-548X.

The sex and age effect on the capacity to detect slight facial changes in a pair of photographs was evaluated in a group of people. Each pair of photographs was displayed during 1.5 s. Two treatments were used; with and without training. Theformer consisted of a pair of photographs that were exhibited to the person before the test like an example of the changes that could be expected to see in the trial. Men and women showed meaningful differences in the test results; women obtained higher scores indicating an upper detailed visual perception of human faces. Furthermore, age effect over perception was found, where the greater number of correct choices was presented between 21 and 30 years old; before this age range no diffrences were found, because of the perceptual capacity is developing; on the other hand, upon that age range the results are lower because of the normal aging pattern. Greater scores were found on trained people, suggesting that the training treatment is an effective method for enhancing the perception skills.

Keywords : Cognition; age; visual perception; training; gender.

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