Comment:
Yes,there is a dominant ear. This was established years ago by
work such as that of Alfred Tomatis [Paris] on listening,the uterine
genesis of the vestibualr/auditory system. One obvious explanation -the
human brain is specialized/localized for langauge functiong -areas of the
left lobe which not only can be shown to process language preferentailly
but show greater anatomical development. The left lobe receives
neurolgical input from the right ear,jus as the right lobe areas receive
from the left ear. It would be useful for you to review this previous
research before conducting further experiments. I am sslightly surpirsed
taht the reslts with white noise favor the right ear,since the previous
research is based on the assumpiton one is dealing with significat
phonetiphonemic sound or organized soun such as music.
Griffith Morgan
Guelph,Ontario,Canada
On Fri, 11 Sep 1998, Zoro wrote:
> Hi,
>> I'm presently involved with a university group experiment. We are
> investigating the effects of 2 point descrimination within the visual
> and auditory pathway and perhaps finding a link to Cortical dominance
> within the brain (i.e. the dominant hemisphere [left for right handers
> for example] will be better at the descrimination task than the lesser
> dominant).
>> To test each eye indvidually, we used a flicker-fusion light source
> (flickering light bulb), varying the frequency of flicker to find the
> point where the source appears fused (non-blinking). The results show no
>> difference between the eyes.
>> To test each ear individually, we used a white noise sound source,
> hooking it to a computer to allow the incorporation of 2 no-sound
> "blips". Separating these two breaks in the noise at varying times
> apart, in order to find the point where they appear fused (ie. as one
> "blip" instead of the two "Blip blip").
>> We found that in all cases the right ear achieved a much higher degree
> of two-point descrimination, but have yet to come up with a reasonable
> conclusion as to why.
>> We are presently looking into vestibular functions/anatomy but any help
> would be greatly appreciated. Thanks
>> Duy (2nd year student)
>>>>>