My son has CAPD. I don't know if this is symptomatic of CAPD per se, but my son DOES have a dominant ear. And a dominant eye, together with a dominant side of body for movement except for handwriting. It's his left. The therapist, and I might add that she's not trained in audiology, is confounded.
With headphones on, his response time for his right ear is nearly 2x that of his left ear. The left ear response time is slower than the norm. The other thing is, no matter which side sound is introduced through the headphones, he thinks its from the left.
Judging from what your son says about words not making sense unless its through his dominant ear, I'd also say that CAPD is possible. My son often used to say - "I can hear you, but the words just don't register in my brain." Sounds a tad similar.
The links mich posted are very helpful, thanks. Do be aware that the presentation of symptoms can differ quite substantially from what is listed on the web. In our experience, I researched CAPD once when the school teachers mentioned DS' inability to pay attention to instructions in class. But my son's presentation of the listed symptoms was not a strong enough match for me to be fully convinced. I did bring him to the local hospital for a CAPD check, and even then, we were turned away by the staff because he didn't fit the bill. So when I think back, I would have focused solely on his ability to make sense of speech. And for that, the answer was a straight no at least 40% of the time.
