Speech perception
Agnosia is "the loss or diminution of the ability to recognize familiar objects or stimuli usually as a result of brain damage". There are several different kinds of agnosia that affect every one of our senses, but the two most common related to speech are speech agnosia and phonagnosia.
Societal and cultural aspects of autism
Two traits sometimes found in AS individuals are mind-blindness (the inability to predict the beliefs and intentions of others) and alexithymia (the inability to identify and interpret emotional signals in oneself or others), which reduce the ability to be empathetically attuned to others. Alexithymia in AS functions as an independent variable relying on different neural networks than those implicated in theory of mind. In fact, lack of Theory of Mind in AS may be a result of a lack of information available to the mind due to the operation of the alexithymic deficit.