Which parameters are important to justify the need for an AAC system?

Justifying the need for an AAC (Augmentative and Alternative Communication) system involves a comprehensive assessment of various physical and contextual factors that influence communication capabilities. The selection of breath support and rate of speech as key parameters reflects the essential physiological aspects necessary for effective communication.

Breath support is crucial as it directly affects a person's ability to produce speech sounds. Individuals with insufficient breath support may struggle to articulate words clearly or sustain utterances for expended periods. This aspect is particularly relevant for individuals with neuromuscular disorders or respiratory conditions, where their ability to use speech might be significantly compromised.

Similarly, the rate of speech is vital in determining how efficiently an individual can communicate. A reduced rate of speech can result in difficulty conveying information in a timely manner, which could lead to frustration and hinder social interactions. Understanding these parameters allows professionals to tailor AAC solutions that meet the specific communication needs of an individual, ensuring the devices provided can accommodate their physical capabilities for effective communication.

Overall, proper evaluation of breath support and rate of speech informs the selection of appropriate AAC devices and strategies that maximize communication effectiveness for individuals with limitations in verbal communication.