Although it is known that visual imagery is accompanied by activity in visual cortical areas,
including primary visual cortex, whether olfactory imagery exists remains controversial. Here …

Studies of patients with focal brain injury indicate that smell perception involves caudal
orbitofrontal and medial temporal cortices, but a more precise functional organization has …

When attempting to identify an object based on smell alone, people often visualize the
perceived source of the odorant. This close association between olfactory and visual …

In agreement with the theoretical framework stipulating that mental images arise from neural
activity in early sensory cortices, the primary olfactory cortex [ie, the piriform cortex (PC)] is …

The majority of existing functional MRI studies on olfactory perception have addressed the
relationship between stimulus features and the intensity of activity in separate regions …

Irritation and negative valence are closely associated in perception. However, these
perceptual aspects can be dissociated in olfaction where irritation can accompany both …

Identification of an object based on its odor alone is inherently difficult, but becomes easier
when other senses provide supporting cues. This suggests that crossmodal sensory input …

We used positron emission tomography (PET) to investigate brain regions associated with
odor imagery. Changes in regional cerebral blood flow (CBF) during odor imagery were …

Over the last ten years, methods of cerebral imaging have revolutionized our knowledge of
cognitive processes in humans. An impressive number of papers dealing with cerebral …

Paradoxically, attempts to visualize odorant-induced functional magnetic resonance imaging
(fMRI) activation in the human have yielded activations in secondary olfactory regions but …