Marcus suffers from a pervasive developmental disorder, because of which he cannot communicate with others. He is unable to relate emotionally to others. However, he can remember directions to any location he has been to once. He can also recall 16 digit pin codes after having heard them only once. He can quickly solve extremely challenging mathematical puzzles. Marcus is most likely to be diagnosed with
A) Down syndrome.
B) autistic savant syndrome.
C) PKU syndrome.
D) Fragile X syndrome.

Question

Quizplus · Accepted Answer

The description of Marcus displaying exceptional abilities in memory and mathematical skills, but lacking in social communication and emotional relatedness, is consistent with the characteristics of individuals with autistic savant syndrome. Down syndrome, PKU syndrome, and Fragile X syndrome do not typically present with the same pattern of skills and deficits as seen in Marcus.

Marcus Suffers from a Pervasive Developmental Disorder, Because of Which