Short term memory and working memory in blind versus sighted children.

Withagen et al. (2013) tested 40 ten-year-olds. Half were blind since birth. Half had normal vision.

Each child completed two memory games. One measured short-term memory. One measured working memory. Both used spoken words only.

Blind children remembered more words than sighted peers. The gap was large enough to be obvious in everyday class work.

The blind group also scored higher on working-memory tasks. They could hold and shuffle more bits of spoken information at once.

Puche-Navarro et al. (2007) saw the same edge for blind kids on verbal inference tasks. Together the papers show that lack of vision can boost verbal brain power.

Whitehouse et al. (2014) looked at kids with 22q11.2 deletion syndrome and found weaker spatial working memory. That seems opposite to Ans et al., but the groups are different. One is sensory loss, the other genetic. The studies remind us to ask which pathway is driving the memory change.

Saville et al. (2002) found shorter verbal memory in Down syndrome. Ans et al. now show the reverse pattern in blind children. The take-home: do not lump all "special groups" under one memory profile.

If you teach a blind learner, treat strong verbal memory as a tool. Give longer oral instructions, use word chains to teach new skills, and let the child rehearse out loud. Do not slow the pace out of habit; their ears can handle more than you think.