According to Carole Wade and Carol Tavris, sensory adaptation is the reduction or disappearance of sensory responsiveness that occurs when stimulation is unchanging or repetitious. Senses are designed to respond to change and contrast in the environment. When a stimulus is unchanging or repetitious, sensation often fades or disappears. Sensory adaptation has it's beneficial effects along with it's negative ones. Sometimes the adaptation causes people to spares us time and effort by not responding to certain information. Other times it causes us to miss something important...which could have a drastic outcome. Taking into account that everyone has senses, sensory adaptation is a large part of life. Everyone has experiences in which adapting to certain stimuli have effected them in positives and negative ways. Parents calling for a child is a stimulus, which in turn causes the child to become alert and answer the call. When a child is young, his/her parent's voice is certainly a comfortable sign considering it is one that the child recognizes. It usually is followed by a smile or a sense of happiness. When a child becomes older and more responsible, the voice of the parent takes a different role. The voice could be punishing or threatening, displaying a sense of disappointment and anger. The child is then faced with stimuli that can range from beneficial to dangerous, considering the volume and tone. If a child is called upon by a parent with a friendly, passive and polite voice, the child will respond willingly. This stimulus causes the child to think that maybe he/she is going to be rewarded by past experiences when he/she was young. When the stimuli is loud, angry and aggressive, the child will become scared and maybe not respond; knowing that this stimulus will lead to a punishment or something worse. Sometimes the stimuli are repeated so many times, regardless of volume and tone, that the subject (child) doesn't resp...