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Course information comes from the public UCLA General Catalog. Requisites are read from UCLA’s published wording and can be incomplete or out of date — check the official catalog listing and your department adviser before you enroll.

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PSYCH 120BSensation and Perception

Psychology · 4 units · Undergraduate upper division (100-199)

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Designed for juniors/seniors. Acquisition of information about physical world through basic sensory mechanisms and perceptual processes. Perception of objects, surfaces, space, motion, and events. Connections between information, computations, and biological mechanisms in vision, audition, and other systems.

P/NP or letter grading.

When it runs

Checking the Schedule of Classes…

Requisites

Official UCLA wording

Requisites: courses 10, 100A.

BruinTree reads · Prerequisite

confidence 1.00 · from text
all of
  • PSYCH 10
  • PSYCH 100A

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About PSYCH 120B. We read UCLA’s requisite wording by machine, and it gets things wrong.

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Requires

Everything that has to come before this course, not just the courses named in the requisite above.

PSYCH 120B

  • PSYCH 10Introductory Psychology
  • PSYCH 100APsychological Statistics
    • PSYCH 10Introductory Psychologyanother path to it
    • COMPTNG 10AIntroduction to Programming
    • STATS 10Introduction to Statistical Reasoning

2 direct requisites. The whole upstream is here — 5 courses over 2 levels. Every course here opens its own tree.

Unlocks

What this course is a requisite for, and what those courses lead to in turn.

PSYCH 120B

  • PSYCH M119LHuman Neuropsychology
  • PSYCH 121Laboratory in Cognitive Psychology
  • NEUROSC M119LHuman Neuropsychology
  • PSYCH 124BFundamentals of User Experience
  • PSYCH 124CHuman Memory
  • PSYCH 124EDecision Psychology and Neuroscience
  • PSYCH 124FThinking
  • PSYCH 124GCognition and Successful Aging
  • PSYCH 124JPerception, Learning, and Learning Technology
  • PSYCH 124KEthical, Legal, and Societal Implications of Cognitive Neuroscience
  • PSYCH 124LRationality and Altruism

11 courses list this as a requisite. The whole downstream is here — 11 courses over 1 level. Every course here opens its own tree.

  • Fall 2025
  • Winter 2026
  • Spring 2026
  • Summer 2026
  • Fall 2026
  • Winter 2027
  • Spring 2027

Scheduled, not typical — from UCLA’s Schedule of Classes, which publishes Fall 2025 through Spring 2027 and nothing before it.