Smound
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Smound is a perception or sense experience created from the convergence of scents and sounds in the brain. The word is a portmanteau of smell and sound.
The smound concept is based on a study done by Daniel Wesson, PhD and Donald Wilson, PhD, researchers at the Nathan S. Kline Institute for Psychiatric Research (NKI) in New York City.[1]
The study, which was published in The Journal of Neuroscience, traced extracellular recordings from the olfactory tubercles of anesthetized mice. They found that 65% of single tubercle units responded to odours and 19% responded to auditory tones. When the tubercles were subjected to both odour and tone, 29% displayed supraadditive or suppressive responses.[2] The authors of the study have suggested that this shows some cross-modulation between the two senses.