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Fig. 4 | BMC Neuroscience

Fig. 4

From: Navigational choice between reversal and curve during acidic pH avoidance behavior in Caenorhabditis elegans

Fig. 4

Histograms of the distance of the worm positions relative to the acidic yellow border. Histograms of the distance of the worm positions in reversal avoidance (left) and curve avoidance (right) binned every 0.2 mm. a Histograms of avoidance behavior obtained using 100 mM HCl to form gradients on a plate containing 5 mM potassium phosphate buffer (same condition as in Fig. 2, see Additional file 3: Fig. S4 for steepness). b–d Results obtained from b 100 mM HCl on 5 mM sodium acetate buffer, c 30 mM HCl on 5 mM sodium acetate buffer, and d 30 mM HCl on 0.2 mM sodium acetate buffer. Horizontal lines represent the mean distance. Mean ± SD and the pH at the position estimated from Fig. 3a were also indicated. Differences in variance were compared using the F test. Variance in b, c, and d were significantly different from that in a for both reversal and curve avoidance (p < 0.01)

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