Page 9 - HFACS Flipbook Holcim v 1.2

Perceptual Errors
Perceptual Errors often occur during the performance of tasks
that rely heavily on one's senses for detecting/ interpreting stimuli
in the environment. These errors involve the five senses: seeing,
hearing, touching, tasting and smelling.
● Inadequate visual - processing misjudged height/ distance,
misinterpreted text/numbers, misperceived colors/shapes
● Inadequate auditory - processing misinterpreted speech,
misperceived tones/sounds
● Inadequate tactile/haptic - processing misestimating
weight/force/press

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