Continuity and low-voltage percent

Criteria & assessment

• Attenuation: lower activity >=10 µV and <50% of higher-voltage background; suppression: lower activity <10 µV.
• Continuous: low-voltage percent <1%.
• Nearly continuous: 1–9%, with qualifying periods >=1 s; report typical duration.
• Discontinuous: alternating higher activity with 10–49% attenuation/suppression.
• Burst attenuation/suppression: alternating higher activity with 50–99% attenuation/suppression.
• Suppression/attenuation: >99%; suppressed when all activity <10 µV, attenuated when all activity <20 µV but not suppressed.
• For noncontinuous records report attenuation or suppression percent using record/epoch as denominator.
• Stimulus-induced periods are SI-attenuation or SI-suppression.