We are a predominantly visual species. Our representation of the world as vivid and colorful images is acquired through our eyes. However, most other animals, including many vertebrates and invertebrates, rely on their exquisite ‘sense of smell’ (olfaction) to navigate their world [1]. While visual and auditory stimuli can be broken into their components [2], complex olfactory cues are unitary; i.e. we cannot break them into their elements. For example, the scent of a rose cannot be easily split into its molecular
components. Moreover, the frequent association between distinct smells and long-lasting memories suggests that odors are likely to be processed differently from visual and auditory information in the brain