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AP Psychology
Unit 2 – Biological Basis of Behavior
Topic 2.3
What shift has occurred regarding our comprehension about the number of neurotransmitters present in humans?
Originally thought to exist in hundreds, now only four primary ones are recognized.
Believed to be just a few initially, it is now known there are many different types with varied functions.
The count has never changed; it's always believed that humans have numerous neurotransmitters.
From assuming all individuals possess equal numbers, disparities due to genetics and environment are now acknowledged.
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AP Psychology - 2.3 Overview of the Nervous System and the Neuron
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About Us
About Fiveable
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Careers
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Terms of Use
Privacy Policy
CCPA Privacy Policy
Resources
Cram Mode
AP Score Calculators
Study Guides
Practice Quizzes
Glossary
Crisis Text Line
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Report an Issue
© 2024 Fiveable Inc. All rights reserved.
AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.
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