Sentence examples for stun effects from inspiring English sources
Accordingly, we speculate that stun effects in PPN surgery might predominately arise from microlesioning inhibitory supraspinal influences along the electrode trajectory.
The stun effect is believed to be due to local trauma and oedema, and there is evidence to link intra-operative stun effects with partial beta suppression (Chen et al., 2006a).
The CV is therefore scale invariant and relatively immune from confounds introduced at the between subject level such as differences in stun effects or small variation in targeting between sides and subjects.
Our experience is that such patients have prominent stun effects, in other words temporary post-operative amelioration of parkinsonism even before stimulation and which often makes the full efficacy of DBS difficult to establish during the immediate post-operative period.
Nevertheless, no study has explicitly sought a relationship between the post-operative stun effect and loss of beta synchrony.
However, in the caudal PPN, alpha activity persisted despite the apparent stun effect and correlated positively with gait performance.
However, we observed that the improvement in gait freezing persisted for up to 6 weeks post-implantation a time course arguably more consistent with a stun effect.
Relative gait speed coefficients of variation ranged from 40 to 308% between patients, consistent with some degree of gait disturbance, despite the stun effect.
Two of these three subjects were recorded less than one month following their surgery, when data may have been affected by a postoperative stun effect.
Alternatively it may be that this complexity measure simply normalizes the signal and thus avoids some of the experimental confounds highlighted previously (for example, stun effect and electrode targeting).
If this reasoning is correct, then the occurrence of a possible stun effect would not necessarily indicate accurate electrode placement within the PPN, nor necessarily portend benefit from stimulation.
