When a foreign exchange student returns home after having spent a significant amount of time immersed in another culture, he or she may experience .

Acculturation

Explanation:

Acculturation is said to have occurred when an individual begins to behave and think the way another cultural group (different from his/hers) does because the individual has been immersed in the cultural group for a significant period of time. This leads to the adoption of traits, values and social patterns of the cultural group.

"harry t. moore (1905-1951) – civil rights activist, leader, and the first martyr of the civil rights movement. fannie lou hamer (1917–1977) – leader in the american civil rights movement; co-founder of the national women's political caucus and freedom democratic party. james farmer (1920–1999) – congress of racial equality."