For skilled users the response is directly retrieved

What it is

Once a stimulus–response mapping is stable through practice, people need not compare alternatives one by one; they directly retrieve a response from memory. Choice uncertainty in the Hick-Hyman law is then no longer the main cost. Keyboard shortcuts, fixed tool locations, and familiar gestures often show this skill acquisition.

Why it happens

Repetition binds situational cues to action and reduces explicit comparison. Skilled people see a familiar location or mark and pre-activate its action, making response more like retrieval than menu choice. If the mapping changes, old and new associations compete, slowing performance and increasing errors until the new association stabilises.

Studying it

Track reaction time, error, and gaze across practice blocks for a stable mapping; compare fixed positions, random positions, and a redesigned version. Direct retrieval is indicated when additional alternatives no longer substantially affect reaction time and item-by-item gaze declines. Distinguish skill from mere anticipation caused by predictable trials.

Where it stops holding

Direct retrieval needs stable, consistent, frequently used cues. Rare tasks, temporary commands, semantically similar icons, and frequent redesigns return people to search and choice. Optimising only for experts can remove comprehensible paths for newcomers; expert shortcuts should supplement, not replace, clear information architecture.

Applying it

• Keep locations, names, and shortcuts stable for frequent actions; during redesigns provide transition cues and discoverable old-to-new mappings.
• Retain readable labels, grouping, and search for newcomers instead of requiring everyone to memorise actions.
• Measure first use and repeated use separately; a sharp post-redesign slowdown for experts signals a broken cue–action association.

Related

• Same group: B1.04.1 Decision time grows logarithmically with the number of alternatives · B1.04.2 The premise is equally likely alternatives considered one by one · B1.04.3 Grouping and ordering turn one large decision into several smaller ones
• Nearby: B1.07 Power law of practice · B1.06 Memory-scanning law
• Search terms: direct retrieval · skill acquisition · automaticity