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. Author manuscript; available in PMC: 2013 May 1.
Published in final edited form as: Neurosci Res. 2012 May;73(1):68–72. doi: 10.1016/j.neures.2012.02.010

Table 1.

Examples of phrases from three experimental conditions used in the experimental task

Intrinsic motivation phrases Extrinsic motivation phrases Neutral phrases
Writing an enjoyable paper Writing an extra-credit paper Writing an assigned paper
Working on the computer out of curiosity Working on the computer for bonus points Working on the computer to meet a deadline
Participating in a fun project Participating in a money-making project Participating in a required project
Pursuing my personal interests in class Pursuing an attractive reward in class Pursuing a routine task in class
Working with freedom Working for incentives Working with pressure
Having options and choices Having prizes and awards Having pressures and obligations
Working because its fun Working because I want money Working because I have to
Feeling interested Anticipating a prize Feeling frustrated