bioRxiv Science⌕ Search

Biology subjects

Bouyer, L. N.

Publications and source records attributed to Bouyer, L. N..

2 recordsLinked to original sources

People report having consistent idiosyncratic diets of imagined sensations when they re-experience the past, and pre-experience the future

To some extent, humans can re-experience the sensations of past events and pre-experience the future. These capacities are inter-related. But there are substantial individual differences. At the extremes, small minorities of people report that they either cannot have imagined experiences at all, or that their imagined sensations are as real to them as their actual experiences of the physical world. We wanted to know if such individual differences are uniform across different types of imagined experience (e.g. vision, audio, taste and smell), or if people generally have idiosyncratic patterns of different types (vision, audio, taste and smell) of imagined experiences. We find that people report having idiosyncratic diets of different types of imagined sensation, characterised by differences in salience. One person might have more salient imagined visual than taste experiences, while another reports the reverse. Moreover, these propensities are consistent across peoples attempts to re-experience the past, and to pre-experience the future, and they predict peoples experience and usage of different types of imagined sensation in their everyday lives.

neuroscience↗

Mental Rotation is a weak measure of the propensity to visualise.

There is increasing evidence of substantial differences in peoples capacity to voluntarily visualise - with some (Congenital Aphants) asserting they cannot visualise at all. Its been suggested that Congenital Aphants might be mistaken about their inability, as some have performed similarly on tasks purported to measure imagery - including the mental rotation task, where people decide if objects depicted from different viewpoints are the same or different. We examined how the vividness of peoples imagery is related to performance on a mental rotation task. People also reported on their response strategies. Mental rotation was an overall superior response strategy relative to non-visualising. However, the vividness of peoples imagery was only weakly associated with viewpoint contingent changes in task performance, and it did not predict changes in reliance on mental rotation as a response strategy. Overall, our data suggest performance on mental rotation tasks is a weak measure of peoples propensity to visualise.

neuroscience↗