Which method is an example of indirect selection in AAC?

Visual scanning represents an example of indirect selection in augmentative and alternative communication (AAC). This method allows users to make selections by visually scanning through options presented to them; the user typically focuses on a specific item or category until it is activated, which can occur through various means such as blinking, a switch, or another form of confirmation.

Indirect selection methods are distinguished by the fact that they involve a more complex process of selection than direct methods. In visual scanning, the user does not physically touch the communication device or the options themselves but rather uses cognitive processes to select desired choices based on visual observation. This can be particularly beneficial for individuals with physical limitations who are unable to use direct selection methods effectively.

In contrast, the other methods mentioned involve more direct physical interaction with the AAC device or system. For instance, a stylus and a headstick both require direct manipulation of the device, while body part selection implies a more immediate and physical connection to the communication method. Thus, visual scanning effectively exemplifies how users can leverage cognitive strategies for communication, making it an important method in the context of indirect selection within AAC systems.