Then he spent the next two years committing to memory a mental map of the prison down to its tiniest details.

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The map helps these sports psychologists assess and quantify mental aspects of performance like focus, decision speed, reaction time and stress regulation.

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He said it was similar to the human navigational process, where we build up a "mental map" of our surroundings by recognising familiar sights.

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The Google Map screen puts the driver spatially in the turn, no mental rotation necessary.

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