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2016, Number 2

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Rev Mex Ing Biomed 2016; 37 (2)

Sistema de apoyo experimental para el reconocimiento visual y el nombrado de objetos

Rodríguez DWR, Marín MH, Hernández JBJ, Torres NM, Galindo RE

Language: Spanish
References: 26
Page: 101-114
PDF size: 879.01 Kb.


ABSTRACT

A wide variety of stimuli or objects such as drawings or photographs are used in cognitive perceptual and languagerehabilitation. However, the presentation of objects in three dimensions, due to the visual richness, facilitates theidentification and could support the rehabilitation process.Objective. Design an experimental setup to determinethe extent to which the modality of presentation of objects affects the visual recognition of objects.Materials andmethods. A low-cost experimental system was designed in order to show the stimulus in three ways: images, videosand real objects. Eighty objects were selected and variables as manipulability, age of acquisition, familiarity, visualcomplexity, agreement on the label and lexical frequency were controlled. A pilot study was conducted using thesystem in five healthy participants and the reaction time to identify objects was measured.Results. The findingsreveal that the differences in reaction times between the modalities of presentation support the influence of the modeof presentation in object recognition.Conclusions. The volume object properties could allow the exploration ofcharacteristics that the photographs would not have. This may be why the reaction time to identify real objectsor videos was lower. Low-cost alternatives for the visualization and object recognition are valuable in cognitiveperceptual and language rehabilitation.


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