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. Author manuscript; available in PMC: 2022 Jun 1.
Published in final edited form as: Compr Physiol. 2021 Dec 29;12(1):2877–2947. doi: 10.1002/cphy.c210020

Figure 15. Pyridoxine intoxications reveals that large diameter somatosensory afferents contribute to postural control.

Figure 15.

A) Schematic of the experimental set-up. Filled circles represent kinematic markers. The antero-posterior (AP) stance distance is the horizontal distance between the wrist and ankle joints. Forelimb, hindlimb, and trunk axis indicated by dashed lines. Reproduced and modified from (293). B) Rectified averaged EMG activity of the gluteus medius and biceps femoris medial head before (control) and 7 days after pyridoxine intoxication, which destroys large diameter somatosensory afferents, in one cat with translation of the support surface at 240°. The dashed vertical line indicates the onset of platform acceleration. Under each trace, the arrows indicate response onset in control trials and at day 7. C) Amplitude maximum initial displacement of the CoM and time of maximum displastement in relation to platform translation at 240°. Error bars indicate SE. **Significantly different from control values (p < 0.001, one-way ANOVA). B and C reproduced and modified from (791). Copyright 2002 Society for Neuroscience.