Facial expression responsible for controlling the expression differ in each case. Voluntary facial expressions are often socially conditioned and follow a cortical route in the brain. Conversely, involuntary facial expressions are believed to be innate and follow a subcortical route in the brain. Facial recognition is often an emotional experience for the brain and the amygdala is highly involved in the recognition process. The eyes are often viewed as important features of facial expressions. Aspects such as blinking rate can possibly be used to indicate whether a person is nervous or whether he or she is lying. Also, eye contact is considered
Emerging adulthood and early adulthood to Arnett, the term "young adulthood" suggests that adulthood has already been reached, but most people in the emerging adulthood stage no longer consider themselves adolescents, but do not see themselves entirely as adults either. In the past, milestones such as finishing secondary school, finding a job, and getting married clearly marked the entrance to adulthood, but in modern, post-industrialized nations, as positions requiring a college degree have become more common and the average age of marriage has become older the length of time between leaving adolescence and reaching these milestones has been extended, delaying the age at which many