Beispiel #1
0
from omb import OMB
from stimulus import Stimulus

exp, stim_nr = '20180710', 8
#exp, stim_nr  = 'Kuehn', 13

st = OMB(exp, stim_nr)

glmlabel = 'GLM_motion'

savepath = os.path.join(st.stim_dir, glmlabel)
os.makedirs(savepath, exist_ok=True)

omb_stas = np.array(st.read_datafile()['stas'])
texture_data = st.read_texture_analysis()

all_spikes = st.allspikes()

start = dt.datetime.now()

kall = np.zeros((st.nclusters, 2, st.filter_length))
muall = np.zeros(st.nclusters)

frs = np.zeros(all_spikes.shape)

cross_corrs = np.zeros(st.nclusters)

t = np.linspace(0, st.filter_length * st.frame_duration * 1000,
                st.filter_length)
stimulus = st.bgsteps
npd_spikes = all_spikes.copy()

# Exclude spikes that are not in desired direction to zero
pd_spikes[~pd] = 0
npd_spikes[~npd] = 0

#%%
filter_length = 20
contrast = st.generatecontrast(
    [100, 100], 100,
    filter_length - 1)  # subtract one because rw generates one extra
#contrast = st.generatecontrastmaxi([0, 0], 800, filter_length-1) # subtract one because rw generates one extra
contrast_avg = contrast[:, :, filter_length + 1:].mean(axis=-1)
rw = asc.rolling_window(contrast, filter_length, preserve_dim=False)
#%%
texture_file = st.read_texture_analysis()
# Normally the texture stas are contrst avg subtracted
# it will bedone again here, so we add it
stas = texture_file['texturestas'][
    choosecells, :] + texture_file['contrast_avg'][None, ..., None]

from scratch_spikeshuffler import shufflebyrow

shuffled_spikes = shufflebyrow(all_spikes)

print('Calculating shuffled_stas')
shuffled_stas = np.einsum('abcd,ec->eabd', rw, shuffled_spikes)
shuffled_stas = shuffled_stas / shuffled_spikes.sum(axis=1)[:, None, None,
                                                            None]

print('Calculating pdstas')