Summary
Learning to ignore a repeated harmless stimulus.
In depth
Adaptive because animals don't waste energy on harmless stimuli. It differs from sensory adaptation or fatigue; a novel stimulus restores response (dishabituation). Aplysia gill withdrawal is a model studied by Eric Kandel.
It is the simplest form of non-associative learning. In Aplysia, repeated touch reduces neurotransmitter release at sensory-to-motor synapses, so the gill withdrawal weakens. Habituation saves energy and attention for important signals.
Key idea: it differs from fatigue because a different stimulus can still trigger a full response.
Habituation is the simplest form of learning: a decline in response to a stimulus that is repeated and has no consequence. It is not the same as fatigue or sensory adaptation, because a new stimulus restores the response (dishabituation).
It saves energy and attention, letting animals ignore background noise and focus on signals that matter, such as a new predator. Its cellular basis was shown in the sea slug Aplysia, where repeated touch reduces neurotransmitter release at sensory-to-motor synapses.
Example: prairie dogs stop alarm calling at harmless walkers they see daily.
Common mistake: assuming the animal can no longer detect the stimulus; its senses still work, only the response has weakened.
Frequently asked questions
What is Habituation?
Learning to ignore a repeated harmless stimulus.
Which area of biology covers Habituation, and how advanced is it?
Habituation is one of the 53 topics in Animal Behaviour. It is rated Beginner, so it suits learners who are starting out in biology. Related topics in this area include Instinct, Classical Conditioning, Animal Behaviour.
Can you give an example of Habituation?
City pigeons ignore traffic noise.
What should I learn before Habituation?
Habituation is a Beginner topic, so no earlier topic is required. Other Beginner topics in Animal Behaviour that pair well with it include Animal Behaviour, Innate Behaviour, Learned Behaviour.
What topics are related to Habituation?
The closest topics to Habituation are Instinct, Classical Conditioning, Animal Behaviour, Play Behaviour. Comparing them side by side is a good way to see how the ideas connect.
How can I check that I understand Habituation?
Read the summary and the in-depth section, then use the quick check on the interactive lesson for Habituation. To practise the whole of Animal Behaviour, use the Animal Behaviour quiz.
How is Habituation different from Instinct?
Habituation: Learning to ignore a repeated harmless stimulus. Instinct: An inborn pattern of behaviour triggered by a particular stimulus. Read both side by side and note what each one explains.
What is a common mistake about Habituation?
Assuming the animal can no longer detect the stimulus; its senses still work, only the response has weakened.
How should I study Habituation step by step?
First, read the summary and write the definition in your own words. Second, read the in-depth section and note any example. Third, compare it with Instinct and explain the difference aloud. Finally, take the Animal Behaviour quiz and come back to this page for any question you miss.