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
Facial to dry or solidify on the face, almost like plaster; others just remain wet. The perceived effects of a facial mask treatment include revitalizing, healing, or refreshing; and, may yield temporary benefits (depending on environmental, dietary, and other skincare factors). There is little to no objective evidence that there are any long-term benefits to the various available facial treatments. Masks are removed by either rinsing the face with water, wiping off with a damp cloth, or peeling off of the face. Duration for wearing a mask varies with the type of mask, and manufacturer's usage instructions. The time can range