TICKLISHUMAN | The neuroscience of human tickle perception

Summary
Tickle is one of the most enigmatic human sensations: we do not know how a touch can turn into tickle, and why our brain responds to other people’s tickles but not to our own. To date, there is no theory that can satisfactorily explain why touch on certain body areas feels more ticklish than on others, and why some people are more prone to be tickled compared to others. Despite this fundamental knowledge gap, experiments on tickle perception have been extremely scarce, and there is currently no active research on the topic at an international level.
In TICKLISHUMAN, I propose a new interdisciplinary approach to understand the neuroscience of human tickle perception, based on modern haptic technology, somatosensory psychophysics, multivariate pattern analyses of neuroimaging data, brain stimulation, and advanced statistical modelling techniques. First, my team and I will establish a stimulation protocol that optimally induces tickle sensations, and we will identify their neural profile. Building upon my findings on how the brain differentiates between self-generated and externally generated touch, we will delineate the body maps where the perception of tickle is amplified and we will determine the brain mechanism that cancels self-generated tickle sensations. Finally, we will model individual differences in tickle perception as a function of central, peripheral, personality, and demographic characteristics.
TICKLISHUMAN has the strong potential to radically transform our scientific and popular thinking about the social, motor, and clinical neuroscience of tickle. The novel insights from the project will permit to explore the very undervalued clinical and functional implications of tickle in the next decades, including its use as a cognitive biomarker in schizophrenia and autism, and its evolutionary function across species.
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More information & hyperlinks
Web resources: https://cordis.europa.eu/project/id/101039152
Start date: 01-01-2023
End date: 31-12-2027
Total budget - Public funding: 1 499 938,00 Euro - 1 499 938,00 Euro
Cordis data

Original description

Tickle is one of the most enigmatic human sensations: we do not know how a touch can turn into tickle, and why our brain responds to other people’s tickles but not to our own. To date, there is no theory that can satisfactorily explain why touch on certain body areas feels more ticklish than on others, and why some people are more prone to be tickled compared to others. Despite this fundamental knowledge gap, experiments on tickle perception have been extremely scarce, and there is currently no active research on the topic at an international level.
In TICKLISHUMAN, I propose a new interdisciplinary approach to understand the neuroscience of human tickle perception, based on modern haptic technology, somatosensory psychophysics, multivariate pattern analyses of neuroimaging data, brain stimulation, and advanced statistical modelling techniques. First, my team and I will establish a stimulation protocol that optimally induces tickle sensations, and we will identify their neural profile. Building upon my findings on how the brain differentiates between self-generated and externally generated touch, we will delineate the body maps where the perception of tickle is amplified and we will determine the brain mechanism that cancels self-generated tickle sensations. Finally, we will model individual differences in tickle perception as a function of central, peripheral, personality, and demographic characteristics.
TICKLISHUMAN has the strong potential to radically transform our scientific and popular thinking about the social, motor, and clinical neuroscience of tickle. The novel insights from the project will permit to explore the very undervalued clinical and functional implications of tickle in the next decades, including its use as a cognitive biomarker in schizophrenia and autism, and its evolutionary function across species.

Status

SIGNED

Call topic

ERC-2021-STG

Update Date

09-02-2023
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Horizon Europe
HORIZON.1 Excellent Science
HORIZON.1.1 European Research Council (ERC)
HORIZON.1.1.0 Cross-cutting call topics
ERC-2021-STG ERC STARTING GRANTS
HORIZON.1.1.1 Frontier science
ERC-2021-STG ERC STARTING GRANTS