My interest 研究アラカルト 43My activity research (the latter being (i.e. the room where to learn Therefore, vision seems to be necessary to provide a spatial reference frame to understand the spatial connection among objects, thus resulting in a better memory performance. What would happen if a person has never experienced vision? Would other senses be able to provide a valid spatial reference frame? Thus, we tested people who were born blind (i.e. congenitally blind), people who lost vision after birth (i.e. late blind), and blindfolded sighted people. The task required to learn the position of a group of objects using haptics and to remember these objects afterwards. The “trick” was that in 50% of the cases the group of objects was rotated between learning and remembering (objects were on a rotating platform). In the remaining 50% of the cases the group of objects was not rotated. When a rotation occurs, it is more difficult to remember the previous position of the objects, however if objects are learnt as one group, rather than many single objects, then the task becomes easier. In other words, if you learn the spatial connections among the objects then you would be better at remembering their positions after rotation. We found that when the group of objects was not rotated then all participants performed at equivalent levels. Yet, when the group of objects was rotated then congenitally blind participants did much worse than late blind and blindfolded sighted. This suggests that visual experience is indeed necessary to learn the spatial connections among objects. started by investigating the integration of vision and haptics the active or explorative touch as opposed to passive touch). One of my main findings is that when we explore a group of objects (e.g. a cup, a pen, a book, etc.) using our hands alone (i.e. haptics), we are better at remembering the position of these objects when we can see the surrounding environment the experiment takes place), although the actual objects are never seen. We interpreted these results in terms of vision providing the spatial reference frame that helped remembering objects’ positions. In other words, vision helped participants the spatial connections among the objects. Using a metaphor, it is like when we have a fragmented knowledge of a city (e.g. we know the area around the train station, the area around the university, the area around the museum, etc.), but we do not know how these areas are spatially connected and we do not know how to travel from one area to another. However, if we can see a map of the city then everything “falls into its place” and we become aware of how the different areas are spatially connected (e.g. if you take the big road in front of the train station you will get to the museum and turning right on a small road you will get to the university). In our experiment, vision provided a spatial reference frame, similarly to the map of the example. These two studies are examples, but aside vision-haptics integration, I have been working on auditory-haptics integration as well using sensory substitution (software converting visual input in its equivalent auditory output). This software is used to investigate how pathways and objects’ positions can be learnt through audition (rather than vision). the position of
元のページ ../index.html#45