A study just published on February 18th in the Bulletin of the National Research Centre has found that neurofeedback training helped decrease something called the theta/beta ratio in a group of children with autism. Theta and beta are both names of electrical frequencies in the brain, and multiple previous studies have shown that a high theta/beta ratio is associated with difficulty focusing. Decreasing the theta/beta ratio means that the individual is better able to focus and attend to tasks.
This work is small but promising for individuals of all ages who have an autism diagnosis and want brain training to optimize their functioning.
You can read an abstract of the study here and a full description of the study here.