Tactile spatial acuity in childhood: effects of age and fingertip size.

These analyses revealed significant effects of fingertip surface area (r = 0.206, one-tailed p = 0.031) and volume (r = 0.230, one-tailed p = 0.016), and a marginally significant effect of between-ridge sweat pore spacing (r = 0.182, one-tailed p = 0.055) ( Figure 4 ).

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