Anosmia is the partial or total loss of the ability to recognize notes and sing and play music due to a lesion in the anterior temporal lobe of the left hemisphere of the brain. About 4 percent of the population suffers from aphasia, and it shows a strong genetic predisposition. People with aphasia cannot sing a song accurately, although they often do not realize it and think they are singing well. Researchers have scanned the brains of people with dysgraphia and so far they have found that the white matter in one area of the brain of people with dysgraphia is subtly different from that of ordinary people, and that this area is associated with discriminating pitch and remembering melodies. The researchers are also looking for the genes that lead to the genetic predisposition to dysgraphia. The term “apraxia” is a new one, and the combination of a congenital “defect” and an acquired “desire to perform” is what leads to “apraxia The combination of congenital “defects” and the acquired “desire for expression” leads to the creation of “dysgraphia. How do people with dysgraphia behave? 1. A new study by Professor Bill Thompson of Macquarie University in Australia on dysgraphia shows that 4 percent of people suffer from this singing disorder that is out of tune. People with dysgraphia may also have communication difficulties, such as not recognizing the emotions conveyed in the other person’s language that indicate anger, fear or sarcasm. 2. Often, the “off-key” tone of the other person’s voice is missed, but the speaker’s obvious emotions, such as happiness and sadness, can still be felt. Music conveys emotion through changes in pitch, volume, speed or quality of sound, which coincides with the way speech communicates emotion through tone of voice. 3. Tone can change the meaning of a sentence, but people with aphasia cannot recognize tone, and can only rely on the situation or body language to identify the meaning the speaker is trying to express. Some of them can be corrected through articulation training, while others need further treatment. What should I do if I have aphasia? Even if you find that you have apraxia, you don’t have to be too nervous or have low self-esteem, and no one goes to the doctor because of bad singing. There are individual differences in the ability to perceive music, and these are just differences in the development of the brain itself. If it is inherited and cannot be changed, you should try to avoid the effects of early underdevelopment. It is important to develop a child’s sound discrimination and sensitivity early on. If the phenomenon of loss of song is felt, you can record yourself singing and can correct the pronunciation with some exercises. If the dissonance is caused by an acquired disease, and the child used to sing very well, and then suddenly appears to sing severely out of tune, along with other physical symptoms such as headache, dizziness, credibility, hallucinations, etc., he/she needs to seek immediate medical attention for brain examination to rule out some lesions.