Abstract
Perceptual illusions of the distance between two touches have been used to study mental representations of the body since E. H. Weber’s classic studies in the nineteenth century. For example, on many body parts tactile distance is anisotropic, with distances aligned with body width being perceived as larger than distances aligned with body length on several skin regions. Recent work has demonstrated sex differences in other distortions of mental body representations, such as proprioceptive hand maps. Given such findings, I analysed the results of 24 experiments, conducted by myself and my colleagues, measuring tactile distance anisotropy on the hand dorsum in both women and men. The results showed clear, and highly consistent anisotropy in both women and men, with no evidence for any sex difference.
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References
Adamczyk WM, Luedtke K, Saulicz O, Saulicz E (2018a) Sensory dissociation in chronic low back pain: two case reports. Physiother Theory Pract 34:643–651. https://doi.org/10.1080/09593985.2017.1423431
Adamczyk WM, Sługocka A, Mehlich K, Saulicz E, Luedtke K (2018b) Preliminary validation of a two-point estimation task for the measurement of sensory dissociation in patients with chronic low back pain. Pain Med 20:2472–2478. https://doi.org/10.1093/pm/pny220
Anema HA, Wolswijk VWJ, Ruis C, Dijkerman HC (2008) Grasping Weber’s illusion: the effect of receptor density differences on grasping and matching. Cogn Neuropsychol 25:951–967. https://doi.org/10.1080/02643290802041323
Baayen RH, Davidson DJ, Bates DM (2008) Mixed-effects modeling with crossed random effects for subjects and items. J Mem Lang 59:390–412. https://doi.org/10.1016/j.jml.2007.12.005
Barr DJ, Levy R, Scheepers C, Tily HJ (2013) Random effects structure for confirmatory hypothesis testing: keep it maximal. J Mem Lang 68:255–278. https://doi.org/10.1016/j.jml.2012.11.001
Bates D, Mächler M, Bolker BM, Walker SC (2015) Fitting linear mixed-effects models using lme4. J Stat Softw 67:1–48. https://doi.org/10.18637/jss.v067.i01
Bizerra A, Gama EF (2017) Neurocognitive aspects of body size estimation—a study of contemporary dancers. Motriz 23:33–39. https://doi.org/10.1590/S1980-6574201700010005
Borenstein M, Hedges LV, Higgins JPT, Rothstein HR (2009) Introduction to meta-analysis. Wiley, Chichester, West Sussex
Calzolari E, Azañón E, Danvers M, Vallar G, Longo MR (2017) Adaptation after effects reveal that tactile distance is a basic somatosensory feature. Proc Natl Acad Sci 114:4555–4560. https://doi.org/10.1073/pnas.1614979114
Canzoneri E, Ubaldi S, Rastelli V, Finisguerra A, Bassolino M, Serino A (2013) Tool-use reshapes the boundaries of body and peripersonal space representations. Exp Brain Res 228:25–42. https://doi.org/10.1007/s00221-013-3532-2
Cholewiak RW (1999) The perception of tactile distance: influences of body site, space, and time. Perception 28:851–876. https://doi.org/10.1068/p2873
Coelho LA, Gonzalez CLR (2019) Chubby hands or little fingers: sex differences in hand representation. Psychol Res 83:1375–1382. https://doi.org/10.1007/s00426-018-1003-x
Coelho LA, Zaninelli G, Gonzalez CL (2017) A kinematic examination of hand perception. Psychol Res 81:1224–1231. https://doi.org/10.1007/s00426-016-0815-9
Cornelissen PL, Johns A, Tovée MJ (2013) Body size over-estimation in women with anorexia nervosa is not qualitatively different from female controls. Body Image 10(1):103–111. https://doi.org/10.1016/j.bodyim.2012.09.003
Cornelissen KK, Bester A, Cairns P, Tovée MJ, Cornelissen PL (2015) The influence of personal BMI on body size estimations and sensitivity to body size change in anorexia spectrum disorders. Body Image 13:75–85. https://doi.org/10.1016/j.bodyim.2015.01.001
D’Amour S, Harris LR (2017) Perceived face size in healthy adults. PLoS ONE 12:e0177349. https://doi.org/10.1371/journal.pone.0177349
de Vignemont F, Ehrsson HH, Haggard P (2005) Bodily illusions modulate tactile perception. Curr Biol 15:1286–1290. https://doi.org/10.1016/j.cub.2005.06.067
de Vignemont F, Majid A, Jola C, Haggard P (2008) Segmenting the body into parts: evidence from biases in tactile perception. Q J Exp Psychol 62:500–512. https://doi.org/10.1080/17470210802000802
Dolan BM, Birtchnell SA, Lacey JH (1987) Body image distortion in non-eating disordered women and men. J Psychosom Res 31:385–391. https://doi.org/10.1016/0022-3999(87)90009-2
Dolce JJ, Thompson JK, Register A, Spana RE (1987) Generalization of body size distortion. Int J Eat Disord 6:401–408. https://doi.org/10.1002/1098-108X(198705)6:3%3c401::AID-EAT2260060310%3e3.0.CO;2-Z
Engel MM, Keizer A (2017) Body representation disturbances in visual perception and affordance perception persist in eating disorder patients after completing treatment. Sci Rep 7:16184. https://doi.org/10.1038/s41598-017-16362-w
Fiori F, Longo MR (2018) Tactile distance illusions reflect a coherent stretch of tactile space. Proc Natl Acad Sci 115:1238–1243. https://doi.org/10.1073/pnas.1715123115
Fitt AB (1917) The estimation of distances by sight and passive touch: some investigations into the evolution of the sense of touch. J Exp Psychol 2:264–288. https://doi.org/10.1037/h0073891
Fonseca CC, Thurm BE, Vecchi RL, Gama EF (2014) Ballroom dance and body size perception. Percept Mot Skills 119:495–503. https://doi.org/10.2466/25.PMS.119c26z1
Fuentes CT, Longo MR, Haggard P (2013a) Body image distortions in healthy adults. Acta Physiol (oxf) 144:344–351. https://doi.org/10.1016/j.actpsy.2013.06.012
Fuentes CT, Pazzaglia M, Longo MR, Scivoletto G, Haggard P (2013b) Body image distortions following spinal cord injury. J Neurol Neurosurg Psychiatry 84:201–207. https://doi.org/10.1136/jnnp-2012-304001
Fuentes CT, Runa C, Blanco XA, Orvalho V, Haggard P (2013c) Does my face FIT?: A face image task reveals structure and distortions of facial feature representation. PLoS ONE 8:e76805. https://doi.org/10.1371/journal.pone.0076805
Gallistel CR, Gelman R (1992) Preverbal and verbal counting and computation. Cognition 44:43–74. https://doi.org/10.1016/0010-0277(92)90050-R
Gorham SJ, Hundleby JD (1988) Present body perception and prior weight reduction in young adult women. Int J Eat Disord 7:407–411. https://doi.org/10.1002/1098-108X(198805)7:3%3c407::AID-EAT2260070313%3e3.0.CO;2-F
Goudge ME (1918) A qualitative and quantitative study of Weber’s illusion. Am J Psychol 29:81–119. https://doi.org/10.2307/1414107
Green BG (1982) The perception of distance and location for dual tactile pressures. Percept Psychophys 31:315–323. https://doi.org/10.3758/BF03202654
Halmi KA, Goldberg SC, Cunningham S (1977) Perceptual distortion of body image in adolescent girls: distortion of body image in adolescence. Psychol Med 7:253–257. https://doi.org/10.1017/S0033291700029330
Hedges LV (1981) Distribution theory for Glass’s estimator of effect size and related estimators. J Educ Behav Stat 6:107–128. https://doi.org/10.3102/10769986006002107
Hidaka S, Tamè L, Zafarana A, Longo MR (2020) Anisotropy in tactile time perception. Cortex 128:124–131. https://doi.org/10.1016/j.cortex.2020.03.011
Hundleby JD, Bourgouin NC (1993) Generality in the errors of estimation of body image. Int J Eat Disord 13(1):85–92. https://doi.org/10.1002/1098-108X(199301)13:1%3c85::AID-EAT2260130111%3e3.0.CO;2-J
Jeffreys H (1981) The theory of probability, 3rd edn. Clarendon Press, Oxford
Keizer A, Aldegonda M, Smeets M, Christiaan H, Van Den Hout M, Klugkist I, Postma A (2011) Tactile body image disturbance in anorexia nervosa. Psychiatry Res 190(1):115–120. https://doi.org/10.1016/j.psychres.2011.04.031
Keizer A, Smeets MAM, Dijkerman HC, van Elburg A, Postma A (2012) Aberrant somatosensory perception in anorexia nervosa. Psychiatry Res 200:530–537. https://doi.org/10.1016/j.psychres.2012.05.001
Le Cornu Knight F, Longo MR, Bremner AJ (2014) Categorical perception of tactile distance. Cognition 131:254–262. https://doi.org/10.1016/j.cognition.2014.01.005
Le Cornu Knight F, Cowie D, Bremner AJ (2017) Part-based representations of the body in early childhood: evidence from perceived distortions of tactile space across limb boundaries. Dev Sci 20:e12439. https://doi.org/10.1111/desc.12439
Le Cornu Knight F, Bremner AJ, Cowie D (2020) Does the language we use to segment the body, shape the way we perceive it? A study of tactile perceptual distortions. Cognition 197:104127. https://doi.org/10.1016/j.cognition.2019.104127
Longo MR (2015) Posture modulates implicit hand maps. Conscious Cogn 36:96–102. https://doi.org/10.1016/j.concog.2015.06.009
Longo MR (2017) Hand posture modulates perceived tactile distance. Sci Rep 7:9665. https://doi.org/10.1038/s41598-017-08797-y
Longo MR (2019) Sex differences in perceptual hand maps: a meta-analysis. Acta Physiol (oxf) 196:1–10. https://doi.org/10.1016/j.actpsy.2019.03.002
Longo MR (2020) Tactile distance anisotropy on the palm: a meta-analysis. Atten Percept Psychophys 82:2137–2146. https://doi.org/10.3758/s13414-019-01951-w
Longo MR, Golubova O (2017) Mapping the internal geometry of tactile space. J Exp Psychol Hum Percept Perform 43:1815–1827. https://doi.org/10.1037/xhp0000434
Longo MR, Haggard P (2010) An implicit body representation underlying human position sense. Proc Natl Acad Sci 107:11727–11732. https://doi.org/10.1073/pnas.1003483107
Longo MR, Haggard P (2011) Weber’s illusion and body shape: anisotropy of tactile size perception on the hand. J Exp Psychol Hum Percept Perform 37:720–726. https://doi.org/10.1037/a0021921
Longo MR, Haggard P (2012) Implicit body representations and the conscious body image. Acta Physiol (oxf) 141:164–168. https://doi.org/10.1016/j.actpsy.2012.07.015
Longo MR, Holmes M (2020) Distorted perceptual face maps. Acta Physiol (oxf) 208:103128. https://doi.org/10.1016/j.actpsy.2020.103128
Longo MR, Lourenco SF (2007) Spatial attention and the mental number line: evidence for characteristic biases and compression. Neuropsychologia 45:1400–1407. https://doi.org/10.1016/j.neuropsychologia.2006.11.002
Longo MR, Morcom R (2016) No correlation between distorted body representations underlying tactile distance perception and position sense. Front Hum Neurosci 10:593. https://doi.org/10.3389/fnhum.2016.00593
Longo MR, Sadibolova R (2013) Seeing the body distorts tactile size perception. Cognition 126:475–481. https://doi.org/10.1016/j.cognition.2012.11.013
Longo MR, Ghosh A, Yahya T (2015a) Bilateral symmetry of distortions of tactile size perception. Perception 44:1251–1262. https://doi.org/10.1177/0301006615594949
Longo MR, Mattioni S, Ganea N (2015b) Perceptual and conceptual distortions of implicit hand maps. Front Hum Neurosci 9:656. https://doi.org/10.3389/fnhum.2015.00656
Longo MR, Lulciuc A, Sotakova L (2019) No evidence of tactile distance anisotropy on the belly. Roy Soc Open Sci 6:180866. https://doi.org/10.1098/rsos.180866
Longo MR, Amoruso E, Calzolari E, Ben Yehuda M, Haggard P, Azañón E (2020) Anisotropies of tactile distance perception on the face. Atten Percept Psychophys 82:3636–3647. https://doi.org/10.3758/s13414-020-02079-y
Mainka T, Azañón E, Zeuner KE, Knutzen A, Bäumer T, Neumann W-J, Ganos C (2021) Intact organization of tactile space in isolated focal dystonia. Mov Disord 36:1949–1955
Manser-Smith K, Tamè L, Longo MR (2021) Tactile distance anisotropy on the feet. Atten Percept Psychophys 83:3227–3239. https://doi.org/10.3758/s13414-021-02339-5
Marks LE, Girvin JP, Quest DO, Antunes JL, Ning P, O’Keefe MD, Dobelle WH (1982) Electrocutaneous stimulation II. The estimation of distance between two points. Percept Psychophys 32:529–536. https://doi.org/10.3758/BF03204206
Meermann R (1983) Experimental investigation of disturbances in body image estimation in anorexia nervosa patients, and ballet and gymnastic pupils. Int J Eat Disord 2:91–100. https://doi.org/10.1002/1098-108X(198322)2:4%3c91::AID-EAT2260020416%3e3.0.CO;2-Z
Miller LE, Longo MR, Saygin AP (2014) Tool morphology constrains the effects of tool use on body representations. J Exp Psychol Hum Percept Perform 40:2143–2153. https://doi.org/10.1037/a0037777
Miller LE, Longo MR, Saygin AP (2016) Mental body representations retain homuncular shape distortions: evidence from Weber’s illusion. Conscious Cogn 40:17–25. https://doi.org/10.1016/j.concog.2015.12.008
Miller LE, Cawley-Bennett A, Longo MR, Saygin AP (2017a) The recalibration of tactile perception during tool use is body-part specific. Exp Brain Res 235:2917–2926. https://doi.org/10.1007/s00221-017-5028-y
Miller LE, Longo MR, Saygin AP (2017b) Visual illusion of tool use recalibrates tactile perception. Cognition 162:32–40. https://doi.org/10.1016/j.cognition.2017.01.022
Mölbert SC, Sauer H, Dammann D, Zipfel S, Teufel M, Junne F, Mack I (2016) Multimodal body representation of obese children and adolescents before and after weight-loss treatment in comparison to normal-weight children. PLoS ONE 11:e0166826. https://doi.org/10.1371/journal.pone.0166826
Mora L, Cowie D, Banissy MJ, Cocchini G (2018) My true face: unmasking one’s own face representation. Acta Physiol (oxf) 191:63–68. https://doi.org/10.1016/j.actpsy.2018.08.014
Nicula A, Longo MR (2021) Perception of tactile distance on the back. Perception 50:677–689. https://doi.org/10.1177/03010066211025384
Pasman L, Thompson JK (1988) Body image and eating disturbance in obligatory runners, obligatory weight lifters, and sedentary individuals. Int J Eat Disord 7:759–769. https://doi.org/10.1002/1098-108X(198811)7:6%3c759::AID-EAT2260070605%3e3.0.CO;2-G
Peters RM, Goldreich D (2013) Tactile spatial acuity in childhood: effects of age and fingertip size. PLoS ONE 8:e84650. https://doi.org/10.1371/journal.pone.0084650
Peters RM, Hackeman E, Goldreich D (2009) Diminutive digits discern delicate details: fingertip size and the sex difference in tactile spatial acuity. J Neurosci 29(50):15756–15761. https://doi.org/10.1523/JNEUROSCI.3684-09.2009
Peviani V, Bottini G (2018) The distorted hand metric representation serves both perception and action. J Cogn Psychol 30:880–893. https://doi.org/10.1080/20445911.2018.1538154
Peviani V, Magnani FG, Bottini G, Melloni L (2021) Metric biases in body representation extend to objects. Cognition 206:104490. https://doi.org/10.1016/j.cognition.2020.104490
Pierloot RA, Houben ME (1978) Estimation of body dimensions in anorexia nervosa. Psychol Med 8:317–324
Plaisier MA, Sap LIN, Kappers AML (2020) Perception of vibrotactile distance on the back. Sci Rep 10:17876. https://doi.org/10.1038/s41598-020-74835-x
Röver C (2020) Bayesian random-effects meta-analysis using the bayesmeta R package. J Stat Softw 93:1–51. https://doi.org/10.18637/jss.v093.i06
Saulton A, Longo MR, Wong HY, Bülthoff HH, de la Rosa S (2016) The role of visual similarity and memory in body model distortions. Acta Physiol (oxf) 164:103–111. https://doi.org/10.1016/j.actpsy.2015.12.013
Scarpina F, Castelnuovo G, Molinari E (2014) Tactile mental body parts representation in obesity. Psychiatry Res 220(3):960–969. https://doi.org/10.1016/j.psychres.2014.08.020
Shontz FC (1969) Perceptual and cognitive aspects of body experience. Academic Press, New York
Smeets MAM, Smit F, Panhuysen GEM, Ingleby JD (1998) Body perception index: benefits, pitfalls, ideas. J Psychosom Res 44(3–4):457–464. https://doi.org/10.1016/S0022-3999(97)00142-6
Spitoni GF, Serino A, Cotugno A, Mancini F, Antonucci G, Pizzamiglio L (2015) The two dimensions of the body representation in women suffering from anorexia nervosa. Psychiatry Res 230:181–188. https://doi.org/10.1016/j.psychres.2015.08.036
Stone KD, Keizer A, Dijkerman HC (2018) The influence of vision, touch, and proprioception on body representation of the lower limbs. Acta Physiol (oxf) 185:22–32. https://doi.org/10.1016/j.actpsy.2018.01.007
Tajadura-Jiménez A, Väljamäe A, Toshima I, Kimura T, Tsakiris M, Kitagawa N (2012) Action sounds recalibrate perceived tactile distance. Curr Biol 22:R516–R517. https://doi.org/10.1016/j.cub.2012.04.028
Tamè L, Bumpus N, Linkenauger SA, Longo MR (2017a) Distorted body representations are robust to differences in experimental instructions. Atten Percept Psychophys 79:1204–1216. https://doi.org/10.3758/s13414-017-1301-1
Tamè L, Dransfield E, Quettier T, Longo MR (2017b) Finger posture modulates structural body representations. Sci Rep 7:43019
Tamè L, Tucciarelli R, Sadibolova R, Sereno MI, Longo MR (2021) Reconstructing neural representations of tactile space. Neuroimage 229:117730. https://doi.org/10.1016/j.neuroimage.2021.117730
Taylor-Clarke M, Jacobsen P, Haggard P (2004) Keeping the world a constant size: object constancy in human touch. Nat Neurosci 7:219–220. https://doi.org/10.1038/nn1199
Thompson JK, Spana RE (1988) The adjustable light beam method for the assessment of size estimation accuracy: description, psychometric, and normative data. Int J Eat Disord 7:521–526. https://doi.org/10.1002/1098-108X(198807)7:4%3c521::AID-EAT2260070410%3e3.0.CO;2-H
Thompson JK, Thompson CM (1986) Body size distortion and self-esteem in asymptomatic, normal weight males and females. Int J Eat Disord 5:1061–1068. https://doi.org/10.1002/1098-108X(198609)5:6%3c1061::AID-EAT2260050609%3e3.0.CO;2-C
Tilley A (1993) The measure of man and woman: Human factors in design. John Wiley and Sons, New York
Tosi G, Romano D (2020) The longer the reference, the shorter the legs: how response modality affects body perception. Atten Percept Psychophys 82:3737–3749. https://doi.org/10.3758/s13414-020-02074-3The
Viechtbauer W (2010) Conducting meta-analyses in R with the metafor package. J Stat Softw 36:1–48. https://doi.org/10.18637/jss.v036.i03
Wagenmakers E-J (2007) A practical solution to the pervasive problems of p values. Psychon Bull Rev 14:779–804. https://doi.org/10.3758/BF03194105
Weber EH (1834) De subtilitate tactus. In: Ross HE, Murray DJ (eds) E. H. Weber on the tactile senses. Academic Press, London, pp 21–128
Wong TS, Ho R, Ho J (1974) Influence of shape of the receptor organ on the horizontal-vertical illusion in passive touch. J Exp Psychol 103:414–419. https://doi.org/10.1037/h0037137
Wong M, Peters RM, Goldreich D (2013) A physical constraint on perceptual learning: tactile spatial acuity improves with training to a limit set by finger size. J Neurosci 33:9345–9352. https://doi.org/10.1523/JNEUROSCI.0514-13.2013
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Longo, M.R. No evidence for sex differences in tactile distance anisotropy. Exp Brain Res 240, 591–600 (2022). https://doi.org/10.1007/s00221-021-06301-7
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DOI: https://doi.org/10.1007/s00221-021-06301-7