Experimental support system for visual recognition and object nomination

  • W. R. Rodríguez Dueñas Escuela de Medicina y Ciencias de la Salud, Universidad del Rosario, Bogotá, Colombia
  • H. Marín Manrique Facultad de Ciencias Sociales y Humanas, Universidad de Zaragoza, Campus Universitario de Teruel, España
  • B. J. Hernández Jaramillo Escuela de Medicina y Ciencias de la Salud, Universidad del Rosario, Bogotá, Colombia
  • M. Torres Narvaez Escuela de Medicina y Ciencias de la Salud, Universidad del Rosario, Bogotá, Colombia
  • E. Galindo Rojas Escuela de Medicina y Ciencias de la Salud, Universidad del Rosario, Bogotá, Colombia
Keywords: rehabilitation, object recognition, agnosia, engineering design

Abstract

 

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

Published
2016-05-15
How to Cite
Rodríguez Dueñas, W. R., Marín Manrique, H., Hernández Jaramillo, B. J., Torres Narvaez, M., & Galindo Rojas, E. (2016). Experimental support system for visual recognition and object nomination. Mexican Journal of Biomedical Engineering, 37(2), 101-114. https://doi.org/10.17488/RMIB.37.2.5
Section
Research Articles