I am still somewhat new to this whole motherhood thing. So I was not familiar with sensory processing disorder until I read this interesting essay in which writer Vivian Manning-Schaffel explains SPD
-- it's a condition that causes children to over- or under-respond to
certain stimuli -- and notes that one in 20 people has this it. 
My
initial reaction? This sounds like another case of overdiagnosing, or
possibly placing a convenient label on behavior just because it strays
ever-so-slightly outside the norm.
But the deeper I read into Manning-Schaffel's piece, the more convinced I was that SPD is a legitimate disorder.
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