Visuo-spatial performance in autism: a meta-analysis.

Muth et al. (2014) pooled 38 earlier papers that compared autistic and neurotypical people on visuo-spatial tasks.

They looked at three big tasks: Block Design puzzles, finding hidden shapes, and Navon letters made of tiny letters.

Every study used the same kind of task so the team could average the scores across ages and ability levels.

Autistic people were a little faster and a little more accurate on Block Design and hidden-shape tasks.

They also showed a small local-first bias: they spotted the tiny letters before seeing the big letter.

The edge was reliable but small, and the studies varied a lot in size and age groups.

Alonso Soriano et al. (2015) seems to disagree. That study tested only teens with an automated hidden-shape game and found no local bias at all. The clash fades when you see the teen-only group and the computer pace—both can wash out the small advantage.

Storch et al. (2012) also looks like a mismatch. Young autistic adults shifted between global and local views just as fast as peers. Again, the gap shrinks when you notice the task: flexible switching is different from raw speed on a single hidden-shape test.

On the flip side, Dolezal et al. (2010) and Bowen et al. (2012) back up the meta-result in non-clinical students. Higher autism-like trait scores predicted quicker hidden-shape finds, showing the local edge exists across the full spectrum, not just in diagnosed groups.

When you test visuo-spatial skills, expect autistic clients to shine on detail-spotting tasks like puzzles or finding hidden objects. Use that strength to build rapport and mix in tasks that also demand big-picture seeing so the session stays balanced. If a teen appears to lack the local edge, check the task format and time limits before you redraw your picture of their visual style.