Sensory preference and overselective responding in autistic children.

The team watched autistic and neurotypical kids during a two-part task. First they let each child play with toys that gave different kinds of feedback: lights, sounds, or vibration. They noted which sense the child liked best.

Next they showed compound cues that mixed two senses at once. Only one cue told the child where to find a treat. The researchers asked: will the child pay attention to both cues or lock onto just one?

Autistic children zeroed in on the sense they already liked. If a child loved sound, he only listened and ignored the light. Neurotypical kids used both cues.

This locked attention is called overselectivity. It happened only in the autistic group and only for their favorite sense.

Reed et al. (2005) later showed that extra mental load makes overselectivity worse in adults. Together the papers tell us: autistic brains may have less room to juggle input, so they pick one channel and stick with it.

Ingersoll et al. (2003) flipped the idea into practice. They added lights and sounds to imitation toys and saw autistic preschoolers learn faster. The same sensory hook that narrows attention can also boost learning if you place it on purpose.

Barton et al. (2019) widened the lens. They found sensory hypersensitivity predicts repetitive play in both autistic and typical kids. The 1980 study shows the start of the pathway: narrowed attention to liked input. The 2019 study shows the end: more rocking, spinning, or lining up toys.

Before you run a multi-sensory program, find out which sense the child prefers. Use that channel to deliver the key cue. If you need the child to notice two things at once, cut extra distractions first. You can also use the preferred sense as a built-in reward: lights on the correct card, a click sound for right answers, or a gentle buzz for success.