Study finds that aphantasic individuals report decreased imagery in other sensory domains, although not all report a complete lack of multi-sensory imagery. They also report less vivid and phenomenologically rich autobiographical memories and imagined future scenarios, as well as fewer dreams.
Index Tags: Multi-Sensory Imagery
The strength of a person’s mental imagery is linked to the excitability of different brain regions. Exactly how this network controls the strength of visual imagery remains unknown.
Aphantasia and hyperphantasia appear to be widespread but neglected features of human experience with informative psychological associations.
Insights into the neural mechanisms that underlie visual imagery, how imagery can be objectively and reliably measured, and how it affects general cognition.
Study of aphantasics (n=22) is designed to test how image-based thoughts might amplify emotion. Participants read a series of fictitious fearful scenarios while their skin conductance level (SCL) was continuously recorded.
Mental imagery is a fundamental part of human cognition that bridges cognition with sensory representations. This paper introduces a novel technique to measure the sensory capacity of mental imagery while removing the need for memory and any direct subjective reports.
New methods in behavioural psychophysics (the binocular-rivalry technique) and brain imaging (decoding techniques) have been developed and utilized to uncover many new insights into the mechanisms and brain areas involved in mental imagery.
Performance in visual working memory can be predicted by the strength of mental imagery as assessed with binocular rivalry. Findings could help reconcile current controversy regarding the mechanism and location of visual mnemonic storage.
From the early imagery interviews of Francis Galton through many modern surveys, a consistent diversity of self-reports on ones own mental imagery abilities suggests that some 2-5% of people are very poor- or non-visual- imagers. Comparable estimates have been made in auditory and other imagery modalities.