Which areas hold a phone number in mind for the seconds it takes to dial it? · Grey Matter

Holding the number is working memory, run by the dorsolateral prefrontal cortex together with the posterior parietal cortex, with the speech and auditory areas keeping the sound of the digits rehearsed.

Which areas hold a phone number in mind for the seconds it takes to dial it?

Holding the number is working memory, run by the dorsolateral prefrontal cortex together with the posterior parietal cortex, with the speech and auditory areas keeping the sound of the digits rehearsed. Prefrontal neurons keep firing during the delay, which protects the digits from interference, and silent repetition refreshes them. Seven to ten digits are close to the limit, and grouping them into chunks (three, three and four) is what makes a longer number fit.