Hyperthymestic syndrome is characterized by unusual capability of an individual to remember and recall the events and happenings that occurred in the past. In short the individual have a consolidated autobiographical memory.
Best Answer: Your pupils dilate when the muscles in your eyeballs stretch. Several things can cause this to happen. They sometimes dilate during times of attraction or when you see something you like. Sometimes this happens during fear or situations in which you are threatened and adrenaline rushes.
Notify your doctor if you have had your pupil dilated and develop any of the following: 1  Worsening blurry vision: 2  When you focus on distant objects. 3  Eye pain.  Worsening 1  headache. Pupils stay dilated for more than 24 hours.  Increased sensitivity to bright light that lasts for more than 24 hours.