Agnosia, a fascinating phenomenon, was mentioned in the article of my previous entry (which referred to visual agnosia). Wikipedia gives a summary of the condition in its various forms. A basic definition:

Agnosia (a-gnosis, “non-knowledge”, or loss of knowledge) is a loss of ability to recognize objects, persons, sounds, shapes, or smells while the specific sense is not defective nor is there any significant memory loss.

One specific form of agnosia is Amusia:

agnosia for music. It involves loss of the ability to recognize musical notes, rhythms, and intervals and the inability to experience music as musical.

Sounds incredibly unamusing to me! In fact that sounds horrible, but I suppose you’d be none the wiser. You’d feel terribly left out, and alienated from society, I would imagine…

I often feel I have the symptoms of what’s described here as “time agnosia” (the loss of comprehension of the succession and duration of events)… But what’s more likely is that I just have a highly selective memory.

Read about the different kinds of Agnosia at wikipedia.