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 rejuvenation and neck lift. Non-surgical (non-invasive) facial rejuvenation treatments can include chemical peels, neuromodulator (such as botox), dermal fillers, laser resurfacing, photorejuvenation, radiofrequency and Ultrasound. Facial rejuvenation procedures can include (but are not limited to): Human visual perception is notable for its sensitivity and accuracy in estimating our perceived age by instant pattern recognition of facial features. Often, human faces with no measurable difference in facial geometry and appearance are perceived as having different ages. This mechanism is not yet entirely understood, but there may be a relation to the subtle changes in facial bone structure related below. Facial symmetry has