eeglab_current.zip_EEG_MATLAB EEG_TEO ecg_eeglab分析脑电_famosopen

SPECIFICATION OF HEADERINFORMATION OF EEG-Files ----------------------------------------------- $Id: header.txt,v 1.22 2006/08/31 17:30:49 schloegl Exp $ Copyright (C) Alois Schloegl 2003-2005,2006 <[email protected]> This is part of the BIOSIG-toolbox http://biosig.sf.net/ CONTENT: ========= (A1) Basic header definition (common for all file formats) for versions 2 (experimental) (A2) Basic header definition (common for all file formats) for versions 1.xx (stable) (B) Header definition for data acquisition (C) Header definition of EDF/BDF/GDF/SDF-Files (A1)========== Basic header definition V2.xx ================================ ToDo: interface for (a) continuous equidistant sampleing (b) triggered (epoched) equidistant sampling (c) non-equidistant (sparse) sampling (of single and multiple channels) Name_of_field type description ------------------------------------------------------------------------- HDR.TYPE string type of data format, HDR.VERSION string [OPTIONAL] depends on data format HDR.FileName full filename HDR.FILE # file handling information FILE.Path path FILE.Name filename FILE.Ext extension FILE.OPEN status: 0 (close), 1 (read), 2(write),3(rewrite header when SCLOSE) FILE.POS position of the file handle (units depend on data format) FILE.PERMISSION 'r': read; 'w': write; 'z': on-the-fly (de-)compression FILE.stdout output stream FILE.stderr error stream FILE.size [optional] HDR.T0 float[1..6] start time, [yyyy mm dd hh MM ss.cc] see HELP CLOCK HDR.NS integer number of channels visible to outside HDR.intern.NS integer number of channels in data file HDR.SampleRate integer sampling frequency in [Hz] HDR.intern.NRec integer number of records or blocks; 1 for continous data HDR.intern.SPR integer samples per record HDR.intern.Dur float Duration (in [s]) of block length HDR.Length integer total number of samples HDR.intern.Calib Matrix for all kind of rereferencing, depends on scaling factors as well as input argument HDR.intern.InChanSelect input channel selection, # read from Raw-data HDR.EVENT # two versions are possible. Version 1: EVENT.SampleRate uint24 how many units [sample] give one second EVENT.POS uint32 Position of event [in samples] EVENT.TYP uint16 Type of event/marker/annotation according to table biosig/t200/eventcodes.txt # or Version 3: EVENT.SampleRate uint24 how many units [sample] give one second EVENT.POS uint32 Position of event [in samples] EVENT.TYP uint16 Type of event/marker/annotation according to table biosig/t200/eventcodes.txt EVENT.CHN uint16 associated channel; is zero if event applies to no specific or all channels EVENT.DUR uint32 event duration in samples EVENT.VAL (*) use for sparse (non-equidistant) sample values). The type corresponds to GDFTYP of the respective channel. and must not exceed 32 bits (4 bytes). Currently, only integer types are supported. # [OPTIONAL] EVENT.CodeDesc text description of Eventtypes EVENT.CodeIndex int corresponding index HDR.ELEC. ELEC.XYZ float electrode positions HDR.intern.Label char-array all channels HDR.Label char-array e.g. '+C3a - C3p ' for selected channels HDR.intern.LeadIdCode uint16 Lead identification label according to SCP or FEF standard HDR.LeadIdCode uint16 Lead identification label according to SCP or FEF standard HDR.intern.PhysDim string physical dimension e.g. 'uV' HDR.PhysDim string physical dimension e.g. 'uV' HDR.intern.PhysDimCode uint16 Code of physical dimension according to "File Exchange Format for Vital Signs - Annex A " HDR.PhysDimCode uint16 Code of physical dimension according to "File Exchange Format for Vital Signs - Annex A " HDR.intern.PhysMax float physical maximum (for calibration) HDR.intern.DigMax integer digital maximum (for calibration) HDR.intern.PhysMin float physical minimum (for calibration) HDR.intern.DigMin integer digital minimum (for calibration) HDR.intern.Bits integer number of bits used HDR.intern.THRESHOLD numeric digital minimum and maximum (for saturation detection); a third column indicates the encoding of missing data; HDR.intern.CHANTYP ascii guess for signal type HDR.FLAG.TRIGGERED int 0=no, 1=yes (epoched) HDR.FLAG.REFERENCE string COM, CAR: common average reference; LOC,LAR local average ref; LAP Laplacian derivation, WGT weighted average HDR.FLAG.UCAL int 0: data is calibrated (scaled), 1: data is not calibrated (scaled) HDR.FLAG.OVERFLOWDETECTION int 1: automated overflow detection if HDR.THRESHOLD is available; 0: no overflow detection HDR.Classlabel int 0: left, 1: right, etc. HDR.ArtifactSelection int [OPTIONAL] 0: ok, 1: artifact HDR.TriggerOffset samples [OPTIONAL] Offset time between TriggerOnset and begin of trial HDR.Filter % filter information, usually for each channel separatily Filter.LowPass float [Hz] Filter.HighPass float [Hz] Filter.Notch float [Hz] NaN: unknown, -1(<0): off HDR.internal.Filter struct filters for all channels HDR.internal.PreFilt string [OPTIONAL] filter setting - used by GDF, BDF, EDF HDR.ID.Doctor Identification of doctor HDR.ID.Hospital Identification of Hospital HDR.Patient # contains patient information [OPTIONAL] Patient.Name Name of Patient: should not be used because of privacy protection Patient.Id Patient identification code as used in hospital Patient.Age Age of Patient Patient.Sex Patient Gender 0: unknown, 1: male, 2: female Patient.Handedness Patient Handedness 0:unknown, 1: right, 2:left, 3: equal Patient.Medication Medication Patient.Classification Classification of Patient Patient.Height height in centimeters [cm] Patient.Weight weight in kilogram [kg] Patient.BMI Body mass index Patient.Headsize 3xfloat32 Distance Nasion-Inion, distance A1-A2, Circumference of head Patient.Birthday [Y M D h m s]: approx. Birthday, to calculate patient's age. Patient.Impairment.Heart 0: unknown 1: NO 2: YES 3: pacemaker Patient.Impairment.Visual 0: unknown 1: NO 2: YES 3: corrected (with visual aid) Patient.Smoking 0: unknown 1: NO 2: YES Patient.AlcoholAbuse 0: unknown 1: NO 2: YES Patient.DrugAbuse 0: unknown 1: NO 2: YES HDR.REC.LOC 16 byte Latitude, Longitude and Altitude 3 x INT32 according to RFC1876 HDR.REC.IPaddr 4(6)xuint8 IP address of recording system # HDR.REC.Reference reference (monopolar | CAR | LAR | Laplacian | Linked ears | weighted ) HDR.REC.Impedance NS*uint8 Electrode Impedance round(log2(Z[Ohm])*8) Z can be reconstructed with < 10% error HDR.intern.Impedance NS*uint8 Electrode Impedance round(log2(Z[Ohm])*8) Z can be reconstructed with < 10% error HDR.intern.XYZ 3xNSxfloat32 electrode position in cartesion coordinates HDR.ELEC.XYZ 3xNSxfloat32 electrode position in cartesion coordinates HDR.ELEC.REF 3xfloat32 position of reference electrode HDR.ELEC.GND 3xfloat32 position of ground electrode HDR.intern.AS # provides some internal information AS.MAXSPR least common multiple samplerate AS.bpb bytes per block AS.spb samples per block AS.bi cumulative index AS.SampleRate samplerate of each channel AS.EVENTTABLEPOS position of eventtable (A2)========== Basic header definition V1.xx ================================ Name_of_field type description ------------------------------------------------------------------------- HDR.TYPE string type of data format, HDR.VERSION string [OPTIONAL] depends on data format HDR.FileName full filename HDR.FILE # file handling information FILE.Path path FILE.Name filename