Hi Chenée,
Maximising the auditory senses via floatation tanks http://ift.tt/2kIotsq ? I didn’t do any searching on it via google scholar, but that commercial website does claim flotation as a means to enhance learning. I am also minded of the Sci-fi series “Fringe” which made major use of flotation tanks, and talked about guiding voices as audio which could transfer in to the tank and in to the person floating there…. I can’t find any relevant clips on youtube, but this one gives you an idea if you haven’t seen the series: https://www.youtube.com/watch?v=OJIhngSpz0Q
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