What is the basic function of trailing with the touch technique?

The basic function of trailing with the touch technique is to follow the outline of objects. This technique allows individuals who are blind or visually impaired to gather spatial information about their environment by physically touching and following the contours of surfaces, such as walls or barriers. By using this method, they can effectively navigate and orient themselves within a space, gaining a sense of where they are in relation to other objects around them.

Trailing helps individuals understand the layout of their surroundings by providing tactile feedback, which complements their other senses during mobility. This is particularly useful when moving through unfamiliar environments, as it allows for safe navigation while also helping to build an understanding of the space.