226 NERVOUS REACTIONS 



4. To which activity is a tropism comparable ? 



5. Draw and label a diagram of a reflex activity. 



6. Explain and give an example of the conditioned reflex. What 

 scientist has been investigating it ? 



7. How could you make learning to swim a habit ? 



8. Make a labeled diagram of an acquired automatic activity. 



9. Explain how the habit of biting the nails may be broken through 

 (a) inhibition, (b) substitution. Explain which method is the more 

 desirable method. 



10. Why is it possible for people to break themselves of bad habits, 

 if the}' have an earnest desire to do so ? 



11. Discuss the advantages and disadvantages of adopting a child 

 of six months ; of five years ; and of fourteen years of age. 



12. Give examples, from your own experience, of habit formation, 

 and discuss the importance of attitude as an aid and as an interference. 



13. W'hat is the value of a habit of regularity ? Of concentration ? 

 Of thoroughness ? 



14. What is the relation between habit formation and vocational 

 success ? 



15. What is the importance of voluntary activities ? 



16. What is the function of the autonomic system? 



17. Discuss the value of basing education on what a child wants 

 to know rather than on what an adult thinks he ought to know ? Should 

 a child study onh^ those things he wants to know ? 



18. What is the relation of interest and attention to understanding ? 



Supplementary Reading 

 See Chapter xxii. 



