______(1) and______(2) affect how people value personal control in decision making， according to a new study in Biological Psychiatry: Cognitive Neuroscience and Neuroimaging. Our brain's reward and_______(3) show higher activity when we feel personal control in a situation and when we receive rewards that we've earned， rather than been given - but this activity was dampened in people with _______(4) or_______(5). The connections between personality， choice， and depression may help guide researchers to understand how to protect healthy people from developing the illness.

　　In the study， the researchers used an MRI scanner to _______(6) of 122 healthy participants while the participants played a computer game to earn rewards. “We were interested to see how people value_______(7)based on their own personally-driven decisions， versus those that are decided for them by the computer，v said ______(8)Liana Romaniuk， PhD， University of Edinburgh.

　　Although all of the participants in the study were considered healthy， the researchers looked for relationships between the brain activity and depression. Activation in the ______(9)was reduced in people with some kinds of depression， which may help explain why people with depression lose their motivation.

　　“Since these ______(10) were ______(11) active _______(12) of subclinical depressive symptoms， it suggests a future role for ______(13) in understanding______(14) in mental wellness and in informing early______(15) and prevention of ______(16)，" said Dr. Carter.

　　The findings also provide clues as to how personality might make a person ______(17). “People who were more self-motivated had stronger responses to ______(18) rewards in a region of cortex called the insula， whereas more passive people showed the______(19)，” said Dr. Romaniuk， adding that "The insula is important because we know______(20) in people with depression.”

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