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parseVisual.py
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parseVisual.py
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# collection of functions that will parse the visual data
import scipy
import numpy as np
import os
import miscAnalysis_salt as ma
import glob
import scipy.io
import skimage.measure
from scipy.stats import f_oneway
import math
import matplotlib.pyplot as plt
from elephant.statistics import time_histogram, instantaneous_rate
from elephant.kernels import GaussianKernel
from quantities import ms, s, Hz
from neo.core import SpikeTrain
from itertools import compress
def removeIntanBuffer(path,spikeDict):
"""
Use this function if there is a collection buffer from Intan acquisition.
must have a mat file in 'path' called bufferBoolean which is a vector of samples
collected by Intan - preprocessing pipeline from the Ginty lab outputs this from
rhd files as variable 'board_dig_in_data'. must be concatenated and saved in
chronological order.
Removes buffer time samples from JRclust output dictionary and subtracts associated
time steps so goodSamples and goodTimes reflect effective stimulation time,
not buffered acquisition time. path = data path. returns cleaned dictionary.
possible that some units only spike during buffer time, data from those units would
remain in the rest of dictionary
"""
goodSamples = spikeDict['goodSamples']
goodSpikes = spikeDict['goodSpikes']
goodTimes = spikeDict['goodTimes']
sampleRate = spikeDict['sampleRate']
bufferDict = scipy.io.loadmat(path + '\\bufferBoolean.mat')
buffer = bufferDict['bufferBool']
# create time vector and put 1 where a spike occurs
allSamples = np.arange(0,np.shape(buffer)[1])
goodInds = np.zeros(np.shape(allSamples))
goodInds[goodSamples]= 1
# filter out buffer samples and subtract the missing times
filteredSamps= goodInds * buffer
filtInds = np.asarray(filteredSamps >0).nonzero()[1]
invertBuffer = np.invert(np.array(buffer[0],dtype = bool))
missing = np.cumsum(invertBuffer)
missingFilt = missing[filtInds]
_ , _, bufferRemoveInd= np.intersect1d(filtInds,goodSamples,return_indices = True)
goodSamples = goodSamples[bufferRemoveInd] - missingFilt
goodTimes = goodTimes[bufferRemoveInd] - missingFilt / sampleRate
goodSpikes = goodSpikes[bufferRemoveInd]
spikeDict['goodSamples'] = goodSamples
spikeDict['goodSpikes'] = goodSpikes
spikeDict['goodTimes'] = goodTimes
outDict = spikeDict
return outDict
def trialByTimeTransform(spikeDict,numTrials,numSamples):
"""
takes spikes dictionary, total trials and samples in dataset
makes output matrix of trial number x sample number. values
correspond to which unit spiked in that sample
trial number is chronological
cellMatrix is data separated by cell in the third dimmension.
cell x trial x sample with 1 where that cell spiked and 0 otherwise
"""
goodSamples = spikeDict['goodSamples']
goodSpikes = spikeDict['goodSpikes']
matrix = np.zeros((numTrials,numSamples))
for i,element in enumerate(matrix):
trialInd = (goodSamples <= (i+1)*numSamples) & (goodSamples >= (i*numSamples))
curTrialSamp = goodSamples[trialInd]
trialSpikeTimes = (curTrialSamp - i*numSamples) -1
trialSpikeID = goodSpikes[trialInd]
for timeInd,time in enumerate(trialSpikeTimes):
matrix[i,time] = trialSpikeID[timeInd]
cellMatrix = np.zeros((np.max(goodSpikes),np.shape(matrix)[0],np.shape(matrix)[1]))
for i,trial in enumerate(matrix):
for j,sample in enumerate(trial):
if sample != 0:
cell = np.array(sample,dtype = int)
cellMatrix[cell-1,i,j] = 1
return cellMatrix,matrix
def processVisualData(path,binSize = 5):
os.chdir(path)
spikeDict = ma.importJRCLUST(os.getcwd()+'\\alldata\\S0.mat')
# if buffer time is recorded, if not comment this out
spikeDict = removeIntanBuffer(os.getcwd(),spikeDict)
# import matlab metadata file and extract relevant parameters
matfile = glob.glob('*Metadata.mat')
mat = scipy.io.loadmat(matfile[0])
stimDict = {}
stimDict['stimIndex'] = mat['stimIndex'][0]
stimDict['preStimTime'] = mat['preStimTime'][0][0]
stimDict['stimDur'] = mat['stimDur'][0][0]
stimDict['numRepeats'] = mat['numrepeats'][0][0]
stimDict['orientationInfo'] = mat['orientationInfo'][0]
numConditions = np.max(stimDict['stimIndex'])
numTrials = int(numConditions) * int(stimDict['numRepeats'])
totalSeconds = int(stimDict['preStimTime']) + int(stimDict['stimDur'])
numSamples = totalSeconds * spikeDict['sampleRate']
# organize spike matrix
cell,matrix = trialByTimeTransform(spikeDict,numTrials,numSamples)
# bin array and save
if binSize > 0:
block = int(spikeDict['sampleRate'] / 1000 * binSize)
binnedCell = skimage.measure.block_reduce(cell, block_size=(1, 1, block), func=np.sum)
else:
binnedCell = cell
# remove cells that never spike
blankCell = np.array(np.zeros((np.shape(binnedCell)[0])),dtype = bool)
for i,el in enumerate(binnedCell):
blankCell[i] = np.sum(el) != 0
binnedCell = binnedCell[blankCell,:,:]
np.save('sortedSpikes_binned.npy',binnedCell)
np.save('stimInfo.npy',stimDict)
np.save('JRclustSpikes.npy',spikeDict)
return binnedCell,stimDict,spikeDict
def findReponders(spikes):
# determine if a cell is visuallly respopnsive or not
base = np.zeros((np.shape(spikes)[0],np.shape(spikes)[1]))
evoked = np.zeros((np.shape(spikes)[0],np.shape(spikes)[1]))
for i,cell in enumerate(spikes):
for j,trial in enumerate(cell):
# hard coded for 6 second base and 2 sec stim s
base[i,j] = np.sum(trial[1000:1200])
evoked[i,j] = np.sum(trial[1200:1400])
anova = f_oneway(base,evoked,axis = 1)
# remove units that have no spikes (maybe spiked during buffer time)
missing = np.isnan(anova[1])
responders_ano = anova[1] < 0.01
responders = responders_ano * ~missing
percent_responsive = np.sum(responders) / np.sum(~np.isnan(anova[1]))
return percent_responsive,responders,evoked,base
def evokedFiring(evoked,base, stimIndex):
# find maximum spike rate during stim for visually
# repsonsive units separated by noise or gratings
noiseTrials= stimIndex == 1
gratingTrials = stimIndex != 1
evokedNoise = evoked[:,noiseTrials]
maxNoise = np.max(evokedNoise,axis = 1)
avNoise = np.mean(evokedNoise,axis = 1)
evokedGratings = evoked[:,gratingTrials]
maxGratings = np.max(evokedGratings,axis = 1)
avGratings = np.mean(evokedGratings,axis = 1)
avBase = np.mean(base,axis = 1)
return maxNoise,avNoise,maxGratings,avGratings,avBase
def evokedFiring2(spikes, stimIndex):
# find maximum spike rate during stim for visually
# repsonsive units separated by noise or gratings
# 10 ms time bins
spikes200ms = skimage.measure.block_reduce(spikes, block_size=(1, 1, 40), func=np.sum)
noiseTrials= spikes200ms[:,stimIndex == 1,:]
gratingTrials = spikes200ms[:,stimIndex != 1,:]
base = np.mean(spikes200ms[:,:,1:30],axis =2)
base = np.mean(base,axis = 1)
maxNoise = np.max(noiseTrials[:,:,31:35],axis =2)
maxNoise = np.max(maxNoise,axis = 1)
avNoise = np.max(noiseTrials[:,:,31:35],axis = 2)
avNoise = np.mean(avNoise,axis = 1)
maxGratings = np.max(gratingTrials[:,:,31:35],axis = 2)
maxGratings = np.max(maxGratings,axis = 1)
avGratings = np.max(gratingTrials[:,:,31:35],axis = 2)
avGratings = np.mean(avGratings,axis = 1)
return maxNoise,avNoise,maxGratings,avGratings,base
def pool_parse_experiments(pathlist,idlist,penlist):
for i,el in enumerate(pathlist):
os.chdir(el)
animalID = idlist[i]
penetration = penlist[i]
spikes = np.load('sortedSpikes_binned.npy')
stimInfo = np.load('stimInfo.npy',allow_pickle = True)
percent_responsive,responders,evoked,base = findReponders(spikes)
stimIndex = stimInfo[()]['stimIndex']
maxNoise,avNoise,maxGratings,avGratings,avBase = evokedFiring2(spikes,stimIndex)
# concatanate
id_list = [int(animalID) for el in maxNoise]
pen = [int(penetration) for el in maxNoise]
if i != 0:
#spikesT = np.vstack((spikesT,spikes))
respondersT = np.hstack((respondersT,responders))
percent_responsiveT = np.hstack((percent_responsiveT,percent_responsive))
animalID_percentT = np.hstack((animalID_percentT,animalID))
penetration_percentT = np.hstack((penetration_percentT,penetration))
maxNoiseT = np.concatenate((maxNoiseT,maxNoise))
avNoiseT = np.concatenate((avNoiseT,avNoise))
maxGratingsT = np.concatenate((maxGratingsT,maxGratings))
avGratingsT = np.concatenate((avGratingsT,avGratings))
avBaseT = np.concatenate((avBaseT,avBase))
stimIndexT = np.hstack((stimIndexT,stimIndex))
animalIDT = animalIDT + id_list
penetrationT = penetrationT + pen
print('concatenated')
else:
#spikesT = spikes
respondersT = responders
percent_responsiveT = percent_responsive
animalID_percentT = animalID
penetration_percentT = penetration
maxNoiseT = maxNoise
avNoiseT = avNoise
maxGratingsT = maxGratings
avGratingsT = avGratings
avBaseT = avBase
stimIndexT = stimIndex
animalIDT = id_list
penetrationT = pen
print('first')
print(el)
percent_df = {'percentResponsive': percent_responsiveT,
'animalID' : animalID_percentT,
'penetration': penetration_percentT}
spikes_df = {#'spikesRaw': spikesT,
'responders': respondersT,
'maxNoise': maxNoiseT,
'avNoise':avNoiseT,
'maxGratings': maxGratingsT,
'avGratings': avGratingsT,
'avBase': avBaseT,
'animalID':animalIDT,
'penetration': penetrationT,
'stimIndex': stimIndexT}
return percent_df, spikes_df
def filter_repeats_avspikes(pathlist,animallist,trials):
# this will only keep the first n trials as input in second parameter
for i,el in enumerate(pathlist):
os.chdir(el)
stimInfo = np.load('stimInfo.npy',allow_pickle = True)
stimIndex = stimInfo[()]['stimIndex']
spikes = np.load('sortedSpikes_binned.npy')
spikes200 = skimage.measure.block_reduce(spikes, block_size=(1, 1, 40), func=np.sum)
filt_stimIndex = stimIndex[0:trials]
filt_spikes = spikes200[:,0:trials,:]
avResp = np.zeros((np.shape(filt_spikes)[0],len(np.unique(filt_stimIndex)),np.shape(filt_spikes)[2]))
for k,ind in enumerate(np.unique(filt_stimIndex)):
curTrial = filt_spikes[:,filt_stimIndex == ind,:]
avResp[:,k,:] = np.mean(curTrial,axis = 1)
# remove cells that never spike
atleastonespike = np.sum(np.sum(spikes,axis = 2),axis =1) != 0
avResp = avResp[atleastonespike,:,:]
atleastonespike = np.sum(np.sum(filt_spikes,axis = 2),axis =1) != 0
filt_spikes = filt_spikes[atleastonespike,:,:]
filt_stimIndex = np.tile(filt_stimIndex,(np.shape(filt_spikes)[0],1))
id = [animallist[i] for n in avResp]
if i == 0:
allResp = avResp
animalID = id
alltrials = filt_spikes
allindices = filt_stimIndex
else:
allResp = np.vstack((allResp,avResp))
animalID = np.hstack((animalID,id))
alltrials = np.vstack((alltrials,filt_spikes))
allindices = np.vstack((allindices, filt_stimIndex))
return allResp, animalID,alltrials,allindices
def processVisualData2(path):
""""
** must run matlab function first to get bufferbool.mat in directory
imports JRclust data and removes spikes during intan buffer period
loads associated matlab file and saves stim info
saves JRclust data and matlab data in given directory
difference between this and previous is that psth is not calculated
"""
os.chdir(path)
spikeDict = ma.importJRCLUST(os.getcwd()+'\\alldata\\S0.mat')
# if buffer time is recorded, if not comment this out
spikeDict = removeIntanBuffer(os.getcwd(),spikeDict)
# import matlab metadata file and extract relevant parameters
matfile = glob.glob('*Metadata.mat')
mat = scipy.io.loadmat(matfile[0])
stimDict = {}
stimDict['stimIndex'] = mat['stimIndex'][0]
stimDict['preStimTime'] = mat['preStimTime'][0][0]
stimDict['stimDur'] = mat['stimDur'][0][0]
stimDict['numRepeats'] = mat['numrepeats'][0][0]
stimDict['orientationInfo'] = mat['orientationInfo'][0]
numConditions = np.max(stimDict['stimIndex'])
numTrials = int(numConditions) * int(stimDict['numRepeats'])
totalSeconds = int(stimDict['preStimTime']) + int(stimDict['stimDur'])
numSamples = totalSeconds * spikeDict['sampleRate']
np.save('stimInfo.npy',stimDict)
np.save('JRclustSpikes.npy',spikeDict)
return stimDict,spikeDict
def aggregate_recordings_vis(pathlist):
""""
loads JRclustSpikes.npy from each recording in pathlist
and appends metadata, spikes trains,
"""
numCells = [] # number of cells sorted in recording
troughPeak = [] # trough to peak ratio for each cell, not separated by recording
somachannel = [] # channel nearest to soma
TPlist = [] # trough to peak ratio, separated by recording
samples = [] # samples where a spike occured
spikes = [] # cell identifier for who spiked
numTrials = [] # number of times stim is repeated
stimIndex = [] # index for randomly interleaved trials
for item in pathlist:
os.chdir(item)
spikeDict = np.load('JRclustSpikes.npy',allow_pickle=True)
spikeDict = spikeDict[()]
stimDict = np.load('stimInfo.npy',allow_pickle = True)
stimDict = stimDict[()]
numCells.append(len(np.unique(spikeDict['goodSpikes'])))
troughPeak.extend(spikeDict['spikeTroughPeak']*1000)
TPlist.append(spikeDict['spikeTroughPeak']*1000)
samples.append(spikeDict['goodSamples'])
spikes.append(spikeDict['goodSpikes'])
somachannel.append(spikeDict['viSite_clu'])
numTrials.append(stimDict['numRepeats'])
stimIndex.append(stimDict['stimIndex'])
numCells = np.array(numCells)
troughPeak = np.array(troughPeak)
numTrials = np.array(numTrials)
return numCells, troughPeak, TPlist, samples, spikes, somachannel, numTrials,stimIndex
def makeSweepPSTH_vis(bin_size, samples, spikes,sample_rate=20000, units=None, duration=None, verbose=False, rate=True, bs_window=[0, 0.25]):
"""
written by GR - modified by AL 8/3/23
Use this to convert spike time rasters into PSTHs with user-defined bin
identical to function in parseWhisker, just named differently
to avoid conflict
inputs:
bin_size - float, bin size in seconds
samples - list of ndarrays, time of spikes in samples
spikes- list of ndarrays, spike cluster identities
sample_rate - int, Hz, default = 20000
units - None or sequence, list of units to include in PSTH
duration - None or float, duration of PSTH; if None, inferred from last spike
verbose - boolean, print information about psth during calculation
rate - boolean; Output rate (divide by bin_size and # of trials) or total spikes per trial (divide by # trials only)
bs_window - sequence, len 2; window (in s) to use for baseline subtraction; default = [0, 0.25]
output: dict with keys:
psths - ndarray
bin_size - float, same as input
sample_rate - int, same as input
xaxis - ndarray, gives the left side of the bins
units - ndarray, units included in psth
"""
bin_samples = bin_size * sample_rate
if duration is None:
maxBin = max(np.concatenate(samples))/sample_rate
else:
maxBin = duration
if units is None: # if user does not specify which units to use (usually done with np.unique(goodSpikes))
units = np.unique(np.hstack(spikes))
numUnits = len(units)
psths = np.zeros([int(np.ceil(maxBin/bin_size)), numUnits])
if verbose:
print('psth size is',psths.shape)
for i in range(len(samples)):
for stepSample, stepSpike in zip(samples[i], spikes[i]):
if stepSpike in units:
if int(np.floor(stepSample/bin_samples)) == psths.shape[0]:
psths[int(np.floor(stepSample/bin_samples))-1, np.where(units == stepSpike)[0][0]] += 1 ## for the rare instance when a spike is detected at the last sample of a sweep
else:
if stepSample/bin_samples > duration * (1/bin_size ):
if verbose:
print(stepSample)
else:
psths[int(np.floor(stepSample/bin_samples)), np.where(units == stepSpike)[0][0]] += 1
psth_dict = {}
if rate:
psth_dict['psths'] = psths/bin_size/len(samples) # in units of Hz
else:
psth_dict['psths'] = psths/len(samples) # in units of spikes/trial in each bin
psths_bs = np.copy(np.transpose(psth_dict['psths']))
for i,psth in enumerate(psths_bs):
tempMean = np.mean(psth[int(bs_window[0]/bin_size):int(bs_window[1]/bin_size)])
#print(tempMean)
psths_bs[i] = psth - tempMean
psth_dict['psths_bs'] = np.transpose(psths_bs)
psth_dict['bin_size'] = bin_size # in s
psth_dict['sample_rate'] = sample_rate # in Hz
psth_dict['xaxis'] = np.arange(0,maxBin,bin_size)
psth_dict['units'] = units
psth_dict['num_sweeps'] = len(samples)
psth_dict['base_line'] = np.mean(psth[int(bs_window[0]/bin_size):int(bs_window[1]/bin_size)])
return psth_dict
def filter_by_index(psths,stimIndex,numTrials,trialsToKeep,indexList,numOris=13):
ind_psth = []
indFilt = []
for i,el in enumerate(psths):
selectedInds = np.isin(stimIndex[i],indexList)
selectedInds[trialsToKeep:] = False
indFilt.append(stimIndex[i][selectedInds])
penReshape = np.reshape(el,(np.shape(el)[0],numTrials[i]*numOris,-1))
ind_psth.append(penReshape[:,selectedInds,:])
return ind_psth,indFilt
def get_all_psths_period(bin, numSec,pathlist,timeVec,stimIndexList,trialsToKeep = 200):
""""
for population analysis
timeVec = boolean for which timepoints in a signle recording to include in analysis
# should be length samplerate * length of one trial in seconds)
generate psths for all recordings and output aggregated data
bin = interval to bin
numsec = number of seconds per trial
pathlist = where to find JRclust data
reshape = boolean - separates into trials (true) or keeps as full recording (false)
stimIndexList = which stim indices to keep when outputting psths
no option to NOT reshape output array because we need to separate by visual trial
"""
psths = []
numCells, troughPeak, TPlist, samples, spikes, somachannel, numTrials,stimIndex = aggregate_recordings_vis(pathlist)
for i,samp in enumerate(samples):
duration = numTrials[i]*numSec*13
timeVecAll = np.tile(timeVec,numTrials[i]*13)
time_inds = np.where(timeVecAll == True)
downsample_ind = np.arange(0,len(timeVecAll),int(20000*bin))
downsamp_vec = timeVecAll[downsample_ind]
selectedSamps,_,spksInd = np.intersect1d(time_inds,samp,return_indices = True)
selectedSpikes = spikes[i][spksInd]
psthDict = makeSweepPSTH_vis(bin, [selectedSamps], [selectedSpikes],sample_rate=20000, units=None, duration=duration, verbose=False, rate=True, bs_window=[0, 0.25])
temp_psth = np.array(np.transpose(psthDict['psths']))
psths.append(temp_psth[:,downsamp_vec])
selected_psth,indFilt = filter_by_index(psths,stimIndex,numTrials,trialsToKeep,stimIndexList)
return psths, numCells, troughPeak, TPlist, samples, spikes, numTrials,selected_psth,indFilt,stimIndex
def sort_psths(psths,filterVec,onset):
responders = psths[filterVec,:]
responders_order = np.argsort(np.sum(responders[:,onset:],axis = 1))
responders_order = responders_order[::-1]
responders_sorted = responders[responders_order,:]
return responders_sorted, responders_order
def calculate_responsive_evoked_psthmean_vis(baseWin,evokedWin,bin,data,numSec):
"""""
baseWin = time window (in seconds) of each trial to call 'baseline'
evokedWin = time window (in seconds) of each trial to call evoked period
both of these are lists of 2 values
bin = bin size of psth data
data = list of psths. elements in list are three dimmensional
arrays corresponding to a single recording. xyz = cell, trial , timepoint
outputs:
base = the baseline of each cell, averaging across firing rates
in baseWin and across all trials for one value per cell
basestd = standard deviation of the baseline. averages across baseWin
first then takes standard deviation of base values acriss trials for each cell
evoked = evoked firing rate per cell. separated by recording,
each value is one cell's evoked rate. calculated by averaging rate
in evokedWin, then taking the maximum firing rate across all trials
for each cell, generating one max evoked firing rate value per cell.
evoked_sub = evoked rate with baseline subtracted subtracted
responsive60p = boolean determining if a particular cell is 'responsive'
at least 60 percent of the time. determined by taking the average firing
rate in evokedWin and testing if that value is 3 times greater than the s
standard deviation of the baseline value.
responsiveMax = boolaean determining if the maximum evoked firing rate
achieved across trials (equal to evoked above) is greater than 3-times
the standard deviation of the baseline
resp_trials_only = evoked firing rate of each cell, averaging across only the
trials where the firing rate is 3* the standard deviaton of baseline
psth_mean = avereage psth per cell, taking only the trials that pass the
'responsive' criteria of evoked rate in that trial is 3* the standard deviation
of that cell's baseline
"""""
base = []
basestd = []
evoked = []
evoked_sub = []
responsive60p = []
responsiveMax = []
resp_trials_only = []
psth_mean = []
baseInd = range(int(1/bin* baseWin[0]), int(1/bin*baseWin[1]),1)
evokedInd = range(int(1/bin*evokedWin[0]),int(1/bin*evokedWin[1] ),1)
for i,pen in enumerate(data):
baseAll = np.mean(pen[:,:,baseInd],axis = 2)
b = np.mean(baseAll,axis = 1)
base.append(b)
st = np.std(baseAll,axis = 1)
basestd.append(st)
evokedAll = np.mean(pen[:,:,evokedInd],axis =2)
evmean = np.mean(evokedAll,axis = 1)
ev = np.max(evokedAll,axis = 1)
evoked.append(ev)
subbed = ev -b
evoked_sub.append(subbed)
# determine if responsive - respond at least 60% of the time
respBool = (evokedAll.T - b > b + 3*st).T
respScore = np.sum(respBool,axis = 1) / np.shape(pen)[1]
responsive60p.append(respScore > .60)
resp_std = ev - b > b + 3*st
responsiveMax.append(resp_std)
r_temp = []
psth_mean_temp = []
for i,cell in enumerate(evokedAll):
# average across trials that are responsive
r_temp.append(np.mean(cell[respBool[i]]))
for i,resp_trials in enumerate(respBool):
selected_trials = pen[i,resp_trials,:]
psth_mean_temp.append(np.mean(selected_trials,axis = 0))
resp_trials_only.append(r_temp)
psth_mean.append(psth_mean_temp)
psth_all_cells = np.zeros((1,int(numSec/bin)))
for el in psth_mean:
psth_all_cells = np.vstack((psth_all_cells,el))
psth_all_cells = np.delete(psth_all_cells,0,0)
outdict_alltrials = {}
outdict_alltrials['base'] = base
outdict_alltrials['basestd'] = basestd
outdict_alltrials['evoked'] = evoked
outdict_alltrials['evoked_sub'] = evoked_sub
outdict_alltrials['responsive60p'] = responsive60p
outdict_alltrials['responsiveMax'] = responsiveMax
outdict_alltrials['resp_trials_only'] = resp_trials_only
outdict_alltrials['psth_mean'] = psth_mean
# calculate latency
latency = []
for cell in psth_all_cells:
blurred = scipy.ndimage.gaussian_filter1d(cell,2)
ttp = np.argmax(blurred[int(1/bin*evokedWin[0]):])
latency.append(ttp)
latency = np.array(latency)
outdict_resptrials = {}
outdict_resptrials['psth'] = psth_all_cells
outdict_resptrials['base'] = np.mean(psth_all_cells[:,baseInd],axis = 1)
outdict_resptrials['evoked'] = np.mean(psth_all_cells[:,evokedInd],axis = 1)
outdict_resptrials['latency'] = latency
return outdict_resptrials,outdict_alltrials
def expand_cell_info(troughPeak,regThresh, idlist,groups,genoNames,numCells):
"""""
troughPeak = vector of cell spike widths from get_all_psths_period
idlist = list of animal ids
regThresh = threshold for calling a spike width 'regular'
groups = list of animal ids that belong to each group, only takes 2 groups right now
order must match following parameter, genoNames
genoNames = list of strings corresponding to names of groups
numCells = list of number of cells sorter per recording, output from get_all_psths_period
output is data describing cell identity
"""
# generate vectors summarizing cell features
reg = []
for i,el in enumerate(troughPeak):
isreg = [1 if troughPeak[i] >= regThresh else 0]
reg.extend(isreg)
reg = np.array(reg)
#genotype vector by recording
genoList = [genoNames[0] if x in groups[0] else genoNames[1] for x in idlist]
# genotype and animal ID vectors by cell
geno = []
cellsbyid = []
for i,el in enumerate(numCells):
if idlist[i] in groups[0]:
g = genoNames[0]
else:
g = genoNames[1]
idnum = idlist[i]
cellsbyid.extend(np.tile(idnum,el))
geno.extend(np.tile(g,el))
geno = np.array(geno)
cellsbyid = np.array(cellsbyid)
recNum = []
for i,rec in enumerate(idlist):
recNum.extend(np.tile(i,numCells[i]))
recNum = np.array(recNum)
return reg, genoList, geno, cellsbyid,recNum
def aggcells(samples,spikes,numrepeats,idlist,wt,plot = True,fs = 20000):
# look at all data separated by recording
#generate event plot and
# use this code block to choose wich cell
# leaves trials empty if no cells spike, allows for trial-trial alignment
# between cells
allcells= []
for r,samp in enumerate(samples):
if plot:
fig,ax = plt.subplots()
allcells_rec = []
for k,cell in enumerate(np.unique(spikes[r])):
rep_wt_bool = spikes[r] == cell
rep_wt = samples[r][rep_wt_bool]
trial = 0
rep_cell_list = [[]] * numrepeats * 13
curtrial = []
for i,event in enumerate(rep_wt):
effective_trial = int(np.floor(event / 160000))
if event > 160000*(trial+1):
curtrial = np.array(curtrial)
if trial == 0:
rep_cell_list[trial] = curtrial
trial += 1
else:
rep_cell_list[effective_trial-1] = curtrial-(160000*(trial))
trial += 1
curtrial = []
else:
curtrial.append(event)
if (len(curtrial) != 0) & (effective_trial != 20):
#print(effective_trial)
curtrial = np.array(curtrial)
rep_cell_list[effective_trial] = curtrial-(160000*(trial))
for i,el in enumerate(rep_cell_list):
if type(el) == list:
rep_cell_list[i] = np.array(el)
allcells_rec.append(rep_cell_list)
num = len(np.unique(spikes[r]))
rows = math.ceil(np.sqrt(num))
cols = math.ceil(np.sqrt(num))
if plot:
plt.subplot(rows,cols,k+1)
if idlist[r] in wt:
plt.eventplot(rep_cell_list,color = 'blue')
plt.axis('off')
else:
plt.eventplot(rep_cell_list,color = 'orange')
plt.axis('off')
plt.title(k)
allcells.append(allcells_rec)
plt.savefig('allcells_raster'+'_'+str(r), dpi=600, transparent=True,bbox_inches='tight')
return allcells
def rate_measure_vis(allcells,stimIndex,fs,kernelsize,info):
"""
info = list [number of seconds, stim on in seconds]
"""
numSec = info[0]
stimOnset = info[1]
samp_factor = 1000/fs
allrates = []
baserate = []
stdbase = []
maxrate = []
maxsub = []
master_trial_block = []
for rec,index in zip(allcells,stimIndex):
trial_block_all_cells = np.zeros([len(rec),len(np.unique(index)),20,80])
cellrates = []
cellbase = []
cellstd = []
cellmax = []
cellsub = []
for k,cell in enumerate(rec):
rate_matrix = np.zeros((len(np.unique(index)),int(numSec*samp_factor)))
for i,el in enumerate(np.unique(index)):
# for every unique stim type
selection = index == el
trial_data = list(compress(cell,selection))
trial_block = np.zeros((len(trial_data),int(numSec*samp_factor)))
for j,trial in enumerate(trial_data):
# for every trial of the same stim
tr = trial / 20000
train = SpikeTrain(tr*s,t_stop = numSec*s)
rate = instantaneous_rate(train, sampling_period=fs*ms,kernel=GaussianKernel(kernelsize*ms))
trial_block[j,:] = np.array(rate.T)
trial_block_all_cells[k,i,j,:] = np.array(rate.T)
rate_matrix[i,:] = np.mean(trial_block,axis = 0)
cellrates.append(rate_matrix)
basevec = np.mean(rate_matrix[:,int(stimOnset*samp_factor-3):int(stimOnset*samp_factor-1)],axis = 1)
baserate.append(np.mean(basevec))
stdvec = np.std(rate_matrix[:,int(stimOnset*samp_factor-3):int(stimOnset*samp_factor-1)],axis = 1)
stdbase.append(np.mean(stdvec))
maxvec = np.max(rate_matrix[:,int(stimOnset*samp_factor):],axis = 1)
maxrate.append(maxvec)
maxsub.append(maxvec - np.mean(basevec))
allrates.append(cellrates)
#print(np.shape(cellbase))
#baserate.extend(cellbase)
#stdbase.extend(cellstd)
#maxrate.extend(cellmax)
#maxsub.extend(cellsub)
master_trial_block.append(trial_block_all_cells)
if len(allrates) == 1:
r = np.array(allrates[0])
else:
r = allrates[0]
for el in allrates[1:]:
r = np.vstack([r,el])
baserate = np.array(baserate)
stdbase = np.array(stdbase)
maxrate = np.array(maxrate)
maxsub = np.array(maxsub)
return r,maxrate, baserate, stdbase, maxsub,master_trial_block
def compute_responsivity(baserate,stdbase,max):
"""
determine if cell is responsive, and if so inhibited or excited by stim
responsive = 1 if excited by stim
responsive = -1 if inhibited
= 0 if non responsive
separate responsive vectors for noise and gratings
preferred orientation for gratings determined by orientation
evoking the highest maximum firing rate
"""
mat = np.zeros((np.shape(max)))
resp_mat = max.T > 3*stdbase + baserate
resp_mat = resp_mat.T
inhib_mat = max.T < 3*stdbase + baserate
inhib_mat = inhib_mat.T
mat[resp_mat] = 1
mat[inhib_mat] = -1
return mat
def get_spike_counts_vis(allcells,stimindex, info,countperiod,fs =20000):
"""
info = list [number of seconds, stim on in seconds]
count period is how long after stim onset to count spikes, in milliseconds
makes psth with bins 1 ms then counts spikes in countperiod after stim
"""
# everything below just generates a psth at 1 ms bin
# with correct experimental structure cell x trial x time
numbins = int(fs * info[0] / 20)
psths = []
bin_samples = fs / 1000
duration = fs * info[0]
for i,rec in enumerate(allcells):
psths_cell_trial = np.zeros([len(rec),len(rec[0]),numbins])
for j,cell in enumerate(rec):
for k,trial in enumerate(cell):
for l,spike in enumerate(trial):
if int(np.floor(spike/bin_samples)) == np.shape(psths_cell_trial)[2]:
psths_cell_trial[j,k,int(np.floor(spike/bin_samples))-1] += 1 ## for the rare instance when a spike is detected at the last sample of a sweep
else:
if spike/bin_samples > duration * (1/.001 ):
print(spike)
else:
psths_cell_trial[j,k,int(np.floor(spike/bin_samples))] += 1
psths.append(psths_cell_trial)
# now we are going to count how many spikes after stim onset
# and organize that by stimIndex
baseCount = []
spikeCount = []
trialSpikes = []
for rec,ind in zip(psths,stimindex):
base = np.sum(rec[:,:,int(info[1]*1000 - countperiod):int(info[1]*1000)],axis = 2)
baseCount.append(np.mean(base,axis = 1))
spikes = np.sum(rec[:,:,int(info[1]*1000):int(info[1]*1000+countperiod)],axis = 2)
spikeCount.append(spikes)
spikeOrg = np.zeros([len(rec),len(np.unique(ind)),np.sum(ind==1)])
for i in range(len(np.unique(ind))):
trialSelect = ind == i+1
spikeOrg[:,i,:] = spikes[:,trialSelect]
trialSpikes.append(spikeOrg)
return psths,baseCount,spikeCount,trialSpikes