Psicólogo / Los rostros son estímulos que capturan la mirada en humanos de manera involuntaria, sostenida, casi universal y desde temprano en la ontogenia, sin embargo, no presentan características físicas (o bottom-up) que expliquen su saliencia, ni calzan por completo dentro del conjunto de objetos cuya captura atencional es realizada de manera voluntaria, o altamente influida por factores cognitivos (usualmente referidos como top-down). Se diseñó un experimento para investigar si existe un efecto del cuerpo (como factor contextual) en el procesamiento extra-foveal temprano de escenas naturalistas, que influya en la velocidad del primer movimiento sacádico dirigido al rostro. Para esto, se registró la conducta ocular de 29 sujetos sanos con un oculómetro en una tarea de exploración libre, compuesto por versiones con y sin el cuerpo de un set de imágenes naturalistas. No se encontraron diferencias, atribuibles a la presencia del cuerpo, en la velocidad del primer movimiento sacádico dirigido al rostro / Abstract
Faces are stimuli that captivates gaze in a sustained, involuntary, almost universal and ontogenetically early manner, nevertheless, they does not show physical (or bottom up) characteristics which could explain their high salience, nor typical characteristics of objects whose attentional capture is voluntary or highly influenced by cognitive factors such as expectations, learning history and subject’s previous knowledge (usually referred as top-down). We conducted an experiment to test if there is in the extra-foveal early processing of naturalistic scenes, any effect attributable to the body (as a contextual factor), capable of affect the speed of the first saccadic movement directed towards the face. In order to do this, the ocular behavior of 29 healthy subjects in a free-viewing task was registered with an oculometer, the task compared a set of naturalistic images containing faces with and without the body. No differences had been found comparing the first two conditions
| Identifer | oai:union.ndltd.org:UCHILE/oai:repositorio.uchile.cl:2250/146204 |
| Date | January 2016 |
| Creators | Becerra Quispe, Diego Alonso |
| Contributors | Bórquez Q., Margarita, Maldonado A., Pedro |
| Publisher | Universidad de Chile |
| Source Sets | Universidad de Chile |
| Language | Spanish |
| Detected Language | Spanish |
| Type | Tesis |
| Rights | Attribution-NonCommercial-NoDerivs 3.0 Chile, http://creativecommons.org/licenses/by-nc-nd/3.0/cl/ |
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