Modal action patterns

Question 1

What are fixed action patterns (FAPs)?

Answer 1

Fixed action patterns are innate, stereotypical sequences of behaviors triggered by specific stimuli, performed to completion once initiated.

Question 1

Can fixed action patterns be influenced by environmental factors?

Answer 1

Yes, while FAPs are innate, they can show variability based on environmental context and experience.

Question 2

How can early experiences affect fixed action patterns?

Answer 2

Early experiences can modulate the expression of FAPs, sensitizing or habituating animals to the releasers.

Question 3

What is a supernormal stimulus?

Answer 3

A supernormal stimulus is an exaggerated version of a normal releaser that can trigger a fixed action pattern, such as a male stickleback attacking a larger red object.

Question 3

How do fixed action patterns interact with learned behaviors?

Answer 3

FAPs provide a basic structure for behavior, while learning fine-tunes performance based on experience and exposure.

Question 4

Domestication Syndrome
Front:
* Selection for tame behavior in animals leads to…

Answer 4

• Reduced neural crest cell migration
• Changes in fur coloration, facial structure
• Reduced cartilage strength (floppy ears, curly tails)
• Altered hormone levels
• Longer reproductive season