eeg_shhs - Search - Sleep Data - National Sleep Research Resource

Spindle Characteristics (Stage N2) - % Fast (C4)

spindle_char_n2_pctfast_c4 under Sleep Monitoring/Polysomnography/Electroencephalogram in SHHS variables

Spindle characteristics in stage N2. For detection methods and validation see Method A10: Goldschmied et al. 2021 (PubMed ID: 33165618), and Guadagni et al. 2021 (PubMed ID:32281182)Search for all EEG variables within this dataset

Spindle Characteristics (Stage N2) - Power (C3)

spindle_char_n2_power_c3 under Sleep Monitoring/Polysomnography/Electroencephalogram in SHHS variables

Spindle Characteristics (Stage N2) - Power (C4)

spindle_char_n2_power_c4 under Sleep Monitoring/Polysomnography/Electroencephalogram in SHHS variables

Powers C4/A1 (æV^2) - Alpha (7.33-12.0)

powers_c4a1_alpha under Sleep Monitoring/Polysomnography/Electroencephalogram in SHHS variables

Average power in all 3-s epochs in the indicated frequency range after excluding the highest 10% of values, which generally represent noise. Search for all EEG variables within this dataset

Powers C4/A1 (æV^2) - Beta1 (14.3-20.0)

powers_c4a1_beta1 under Sleep Monitoring/Polysomnography/Electroencephalogram in SHHS variables

Average power in all 3-s epochs in the indicated frequency range after excluding the highest 10% of values, which generally represent noise. Search for all EEG variables within this dataset

Powers C4/A1 (æV^2) - Beta2 (20.3-35.0)

powers_c4a1_beta2 under Sleep Monitoring/Polysomnography/Electroencephalogram in SHHS variables

Average power in all 3-s epochs in the indicated frequency range after excluding the highest 10% of values, which generally represent noise. Search for all EEG variables within this dataset

Powers C4/A1 (æV^2) - Sigma (12.33-14.0)

powers_c4a1_sigma under Sleep Monitoring/Polysomnography/Electroencephalogram in SHHS variables

Average power in all 3-s epochs in the indicated frequency range after excluding the highest 10% of values, which generally represent noise. Search for all EEG variables within this dataset

Powers C3/A2 (mV^2) - Delta (0.33-2.33 Hz)

powers_c3a2_delta under Sleep Monitoring/Polysomnography/Electroencephalogram in SHHS variables

Average power in all 3-s epochs in the indicated frequency range after excluding the highest 10% of values, which generally represent noise. Search for all EEG variables within this dataset

Powers C4/A1 (æV^2) - Gamma Omega (35.3-60.0)

powers_c4a1_gammaomega under Sleep Monitoring/Polysomnography/Electroencephalogram in SHHS variables

Average power in all 3-s epochs in the indicated frequency range after excluding the highest 10% of values, which generally represent noise. Search for all EEG variables within this dataset

Average ORP During N1

avg_orp_n1 under Sleep Monitoring/Polysomnography/Electroencephalogram in SHHS variables

Average Odds Ratio Product (ORP) in all 30-s epochs during manually scored sleep stages. ORP is a continuous index of sleep depth and wake propensity. A value of 0 indicates very deep sleep, a value of 2.5 indicates full wakefulness. Search for all EEG variables within this dataset

Average ORP During N2

avg_orp_n2 under Sleep Monitoring/Polysomnography/Electroencephalogram in SHHS variables

Average ORP During N3

avg_orp_n3 under Sleep Monitoring/Polysomnography/Electroencephalogram in SHHS variables

Average ORP During REM

avg_orp_rem under Sleep Monitoring/Polysomnography/Electroencephalogram in SHHS variables

Powers C3/A2 (mV^2) - Gamma Omega (35.3-60.0)

powers_c3a2_gammaomega under Sleep Monitoring/Polysomnography/Electroencephalogram in SHHS variables

Average power in all 3-s epochs in the indicated frequency range after excluding the highest 10% of values, which generally represent noise. Search for all EEG variables within this dataset

Powers C3/A2 (mV^2) - Alpha (7.33-12.0)

powers_c3a2_alpha under Sleep Monitoring/Polysomnography/Electroencephalogram in SHHS variables

Average power in all 3-s epochs in the indicated frequency range after excluding the highest 10% of values, which generally represent noise. Search for all EEG variables within this dataset

Powers C3/A2 (mV^2) - Beta1 (14.3-20.0)

powers_c3a2_beta1 under Sleep Monitoring/Polysomnography/Electroencephalogram in SHHS variables

Average power in all 3-s epochs in the indicated frequency range after excluding the highest 10% of values, which generally represent noise. Search for all EEG variables within this dataset

Powers C3/A2 (mV^2) - Beta2 (20.3-35)

powers_c3a2_beta2 under Sleep Monitoring/Polysomnography/Electroencephalogram in SHHS variables

Average power in all 3-s epochs in the indicated frequency range after excluding the highest 10% of values, which generally represent noise. Search for all EEG variables within this dataset

Powers C3/A2 (mV^2) - Sigma (12.33-14.0)

powers_c3a2_sigma under Sleep Monitoring/Polysomnography/Electroencephalogram in SHHS variables

Average power in all 3-s epochs in the indicated frequency range after excluding the highest 10% of values, which generally represent noise. Search for all EEG variables within this dataset

ORP Type

orp_type under Sleep Monitoring/Polysomnography/Electroencephalogram in SHHS variables

Nine Odds Ratio Product (ORP) types with different potential mechanisms and associations with demographics, clinical phenotypes and outcomes. Source: :sum_deciles_1and2: Younes et al. 2022 (PubMed ID: 35272350) Search for all EEG variables within this dataset

Average ORP During non-REM

avg_orp_nonrem under Sleep Monitoring/Polysomnography/Electroencephalogram in SHHS variables

Orp-9

orpto9 under Sleep Monitoring/Polysomnography/Electroencephalogram in SHHS variables

Rate of sleep recovery following arousals. A high value reflects slow recovery and suggests high central arousability (Hyperarousal state).Younes et al. 2021 (PubMed ID: 34156473)Younes and Hanley 2016 (PubMed ID: 26718786)Younes and Giannouli 2020 (PubMed ID: 31992415) Search for all EEG variables within this dataset

Change in ORP across the night

diff_orp under Sleep Monitoring/Polysomnography/Electroencephalogram in SHHS variables

Change in Odds Ratio Product (ORP) across the night, a greater increase in ORP from the beginning of to end of the night suggests more restorative sleep. Younes et al. 2020 (PubMed ID: 32729619). Source: :avg_orp_last120m_nrem: and :min_orp_firsthalf_nrem:. Search for all EEG variables within this dataset

Distribution of epochs in 1.0-1.25% ORP decile

pct_epoch_1to1_25pct under Sleep Monitoring/Polysomnography/Electroencephalogram in SHHS variables

Distribution of 30-s epochs, as a percent of total recording time in different Odds Ratio Product (ORP) deciles. Younes et al. 2022 (PubMed ID: 35272350) ORP is a continuous index of sleep depth and wake propensity. A value of 0 indicates very deep sleep; a value of 2.5 indicates full wakefulness. These values are used to construct the ORP histogram and ORP phenotype (:orp_type:). Search for all EEG variables within this dataset

Distribution of epochs in 2.0-2.25% ORP decile

pct_epoch_2to2_25pct under Sleep Monitoring/Polysomnography/Electroencephalogram in SHHS variables

Distribution of epochs in 0.5-0.75% ORP decile

pct_epoch_0_5to0_75pct under Sleep Monitoring/Polysomnography/Electroencephalogram in SHHS variables