Yes, it is possible for an autistic person to become nonverbal or experience a significant reduction in verbal communication when they are stressed or overwhelmed. This phenomenon is known as "selective mutism" and can occur in individuals with autism spectrum disorder (ASD) as well as in those without ASD.
Selective mutism is a complex psychological condition where a person, often a child, consistently fails to speak in specific social situations despite speaking comfortably in other situations. In the context of autism, this may be more likely to occur during periods of high stress, sensory overload, or when facing challenging social interactions.
It's essential to understand that selective mutism is not a deliberate choice or defiance; it is an involuntary response to anxiety or stress. For some autistic individuals, verbal communication can be particularly challenging, and stress can intensify the difficulties they face in expressing themselves verbally.
If an autistic person you know is experiencing selective mutism or a significant decrease in verbal communication when stressed, it's essential to be supportive and understanding. Creating a calm and accepting environment can help reduce stress and anxiety, potentially leading to improved communication.
If this issue is impacting the individual's daily life or causing significant distress, it may be beneficial to seek support from healthcare professionals, such as speech therapists, occupational therapists, or mental health specialists who have experience in working with individuals on the autism spectrum. They can provide strategies and interventions to help manage stress and improve communication skills.