Averaged OERP traces.

<p>Filter band-pass 0.01–30 Hz. EEG averaging from 500 ms pre-stimulus to 2000 ms post-stimulus. (a) OERPs of healthy control subject; (b) OERPs of MS patient with normal latency and amplitude; (c) OERPs of MS patient without olfactory responses; (d) OERPs of MS patient with reduced N1-P2 amplitude and normal latency.</p

Mean OERP values computed on Fz, Cz, Pz for each MS patient and normal control.

<p>Latency values are in ms. Amplitude values are in µV. Minimum and maximum values are underlined.</p

Intra and inter-group analysis in the groups with borderline and normal OERPs.

<p>Intra and inter-group analysis in the groups with borderline and normal OERPs.</p

Intra and inter-group analysis in the groups with absence and presence of OERPs.

<p>Intra and inter-group analysis in the groups with absence and presence of OERPs.</p

EDSS scores in patients with OERP absence and presence at T0 and T1.

<p>EDSS scores in patients with OERP absence and presence at T0 and T1.</p

Socio-demographic and clinical characteristics and main parameters of OERP components of groups at T1, frequencies (%).

<p>Socio-demographic and clinical characteristics and main parameters of OERP components of groups at T1, frequencies (%).</p

Correlation between EDSS scores and OERP parameters in groups with borderline and normal OERPs.

<p>Correlation between EDSS scores and OERP parameters in groups with borderline and normal OERPs.</p