Posted on Thursday 18 September 2008

Smell is the sense most closely linked to the emotional centres of our brain. Although more of our brain is dedicated to vision than to any of the other senses, more of our genes are devoted to the sense of smell (1%) than to the detection of all the other kinds of sensory information. We possess an excellent ability to detect and discriminate odours but we have great difficulty in describing them verbally. Despite this fact, odours have an extraordinary ability to remind us of events and momories of our past, sometimes from many years ago. 

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