Which set of disorders is characterized by sudden, repetitive, nonrhythmic motor movements or sounds such as eye blinking, facial grimacing, throat clearing, and grunting?

Which set of disorders is characterized by sudden, repetitive, nonrhythmic motor movements or sounds such as eye blinking, facial grimacing, throat clearing, and grunting?

• A. Tic Disorders
• B. Pica
• C. Rumination Disorder
• D. ADHD

Answer: (A)

Tics are sudden, rapid, recurrent, nonrhythmic movements or vocalizations. The behaviors described—eye blinking, facial grimacing, throat clearing, and grunting—are classic examples of motor and vocal tics. This pattern defines tic disorders, which often begin in childhood and can wax and wane over time, sometimes intensifying under stress. This set of symptoms doesn’t fit the other conditions listed. Pica involves eating nonnutritive substances, not involuntary movements or sounds. Rumination disorder centers on regurgitating and re-chewing swallowed food. ADHD is about inattention, hyperactivity, and impulsivity, not repetitive tics. Recognizing the involuntary, repetitive, nonrhythmic nature of these movements helps identify tic disorders as the best match.

Tics are sudden, rapid, recurrent, nonrhythmic movements or vocalizations. The behaviors described—eye blinking, facial grimacing, throat clearing, and grunting—are classic examples of motor and vocal tics. This pattern defines tic disorders, which often begin in childhood and can wax and wane over time, sometimes intensifying under stress.

This set of symptoms doesn’t fit the other conditions listed. Pica involves eating nonnutritive substances, not involuntary movements or sounds. Rumination disorder centers on regurgitating and re-chewing swallowed food. ADHD is about inattention, hyperactivity, and impulsivity, not repetitive tics. Recognizing the involuntary, repetitive, nonrhythmic nature of these movements helps identify tic disorders as the best match.