what causes non verbal autism

The causes of nonverbal autism are not yet fully understood. However, research suggests that there may be a relationship between joint attention and verbal communication. Joint attention occurs between two individuals when one draws the others attention to an object through gesturing (i.e. eye gazing, pointing). The ability to achieve joint attention at an early age plays a significant role in language development, and studies indicate severe lapses in joint attention in children with autism. Additionally, genetics, developmental factors during pregnancy and infancy, and genetic and chromosomal disorders may also play a role. It is important to note that nonverbal autism is not a diagnosis within itself, but rather a description of someone with autism who struggles with verbal communication.