\psi_s\left(|Z_s|(\nabla^{\frac{H}{0},\frac{H}{0}}Z_s)(s,s) + (q-0)\mathrm{sgn}(Z_s)[(\nabla^\frac{H}{0}Z_s)(s)]^0\right)\right]\,\mathrm{d}{s}$$ because the stochastic integrals have zero expectation. 