The DOI matches its Crossref record; 46 of the 46 references it cites were found in a registry or an index.
Diminutive Digits Discern Delicate Details: Fingertip Size and the Sex Difference in Tactile Spatial Acuity
Open accessAbstract
We have observed that passive tactile spatial acuity, the ability to resolve the spatial structure of surfaces pressed upon the skin, differs subtly but consistently between the sexes, with women able to perceive finer surface detail than men. Eschewing complex central explanations, we hypothesized that this sex difference in somatosensory perception might result from simple physical differences between the fingers of women and men. To investigate, we tested 50 women and 50 men on a tactile grating orientation task and measured the surface area of the participants' index fingertips. In subsets of participants, we additionally measured finger skin compliance and optically imaged the fingerprint microstructure to count sweat pores. We show here that tactile perception improves with decreasing finger size, and that this correlation fully explains the better perception of women, who on average have smaller fingers than men. Indeed, when sex and finger size are both considered in statistical analyses, only finger size predicts tactile acuity. Thus, a man and a woman with fingers of equal size will, on average, enjoy equal tactile acuity. We further show that sweat pores, and presumably the Merkel receptors beneath them, are packed more densely in smaller fingers.
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“Previous work suggests that spatial acuity is largely driven by SAI afferents (Peters et al. 2009), which possess the smallest receptive fields and, therefore, the highest spatial resolution.”
From Tactile innervation densities across the whole body (2020) · cites this paper as Peters et al. 2009
In the citing paper
“As prior research has shown, tactile acuity is not fixed but improves with training; while the eventual plateau performance is likely determined by innervation density, typical performance might not (Peters et al. 2009).”
From Tactile innervation densities across the whole body (2020) · cites this paper as Peters et al. 2009
In the citing paper
“As prior research has shown, tactile acuity is not fixed but improves with training; while the eventual plateau performance is likely determined by innervation density, typical performance might not (Peters et al. 2009).”
From Tactile innervation densities across the whole body (2020) · cites this paper as Peters et al. 2009
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Cited by
Sorted by citations
Tactile innervation densities across the whole body
Corniani, G., & Saal, H. P. (2020) · Journal of Neurophysiology · doi:10.1152/jn.00313.2020 · Cited by 396
Wearable Soft Technologies for Haptic Sensing and Feedback
Yin, J., Hinchet, R., Shea, H. R., & Majidi, C. (2020) · Advanced Functional Materials · doi:10.1002/adfm.202007428 · Cited by 344
van Kesteren, M. T. R., Rijpkema, M., Ruiter, D. J., & Fernández, G. (2010) · Journal of Neuroscience · doi:10.1523/jneurosci.2674-10.2010 · Cited by 224
Natural scenes in tactile texture
Manfredi, L. R., Saal, H. P., Brown, K. J., Zielinski, M. C., Dammann, J. F., Polashock, V. S., & Bensmaia, S. J. (2014) · Journal of Neurophysiology · doi:10.1152/jn.00680.2013 · Cited by 211
Lumpkin, E. A., Marshall, K. L., & Nelson, A. M. (2010) · The Journal of Cell Biology · doi:10.1083/jcb.201006074 · Cited by 201
Metadata
- Authors
- Peters, R. M., Hackeman, E., & Goldreich, D.
- Affiliations
- McMaster University (CA)
- Duquesne University (US)
- Venue
- The Journal of Neuroscience
- Publisher
- Society for Neuroscience
- Published
- 2009-12-16
- Volume
- 29
- Issue
- 50
- Pages
- 15756-15761
- ISSN
- 0270-6474 (ISSN-L)
- 1529-2401
- PMC
- PMC3849661
- OpenAlex
- W2081914368
- Cited by
- 231
- References
- 46
- Citations by year
- 2026: 15 · 2025: 24 · 2024: 19 · 2023: 12 · 2022: 25 · 2021: 19 · 2020: 18 · 2019: 13 · 2018: 17 · 2017: 10 · 2016: 5 · 2015: 7 · 2014: 11 · 2013: 10 · 2012: 10
- FWCI
- 4.21
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
- Europe PMC (PubMed Central) (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Eye Institute
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Tactile and Sensory Interactions
- Life Sciences › Neuroscience › Cognitive Neuroscience › Motor Control and Adaptation
- Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
- Keywords
- tactile spatial acuity, sex differences, somatosensory perception, sweat pores
- MeSH terms
- Adolescent, Adult, Female, Fingers, Humans, Male, Sensory Thresholds, Sex Characteristics, Space Perception, Touch, Merkel Cells, Touch Perception, Young Adult
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