International A Level Biology / The nervous system and neurones

Habituation

Edexcel International A Level Biology (YBI11), chapter 23: The nervous system and neurones, specification point 8.9. Part of the full course.

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Habituation is a learned reduction in response to a repeated, harmless stimulus. It can be investigated by measuring how quickly a snail’s tentacles re-emerge after repeated gentle touches.

More lessons in The nervous system and neurones

• Sensory, relay and motor neurones
• From stimulus to response
• The spinal reflex arc
• The resting potential
• The action potential
• How an impulse travels: local circuits and saltatory conduction
• How a synapse works
• How the pupil dilates and contracts
• How drugs affect nerve transmission
• How rods detect light