Пример #1
0
def run(hps=None):
    defaults = PaperDefaults()

    #David's globals
    size=51
    csize=9
    npoints=37
    scale=1.
    _DEFAULT_BWC_CSV_CTS = sp.array([0.0, .06, .12, .25, .50]) * 100
    csvfiles=sp.array([[os.path.join(defaults._DATADIR, 'BWC2009_%i_%i.csv' \
    % (i, j)) for i in _DEFAULT_BWC_CSV_CTS] for j in _DEFAULT_BWC_CSV_CTS]).T

    # experiment parameters
    im = sp.array([
        stim.get_center_surround(
            size=size, csize=csize, cval=.25, sval=sp.nan),
        stim.get_center_surround(
            size=size, csize=csize, cval=.75, sval=sp.nan)])

    # populations for vertical (masking) and horizontal (driving) stimuli
    #####################################################################
    xv = model_utils.get_population(im[0],
        kind='circular', npoints=npoints, scale=scale)
    xh = model_utils.get_population(im[1],
        kind='circular', npoints=npoints, scale=scale)

    # superimposed populations
    ##########################
    v_contrasts = [0.0, .06, .12, .25, .50]
    h_contrasts = [0.0, .06, .12, .25, .50]
    nv, nh = len(v_contrasts), len(h_contrasts)
    x = sp.array([[h*xh + v*xv for h in h_contrasts] for v in v_contrasts])
    x.shape = (nv * nh,) + x.shape[2:]

    # busse and wade data
    t_paper = sp.zeros((nv, nh, 13))
    y_paper = sp.zeros((nv, nh, 13))

    for idx in range(nv):
        for jdx in range(nh):
            t_paper[idx, jdx], y_paper[idx, jdx] = \
                sp.genfromtxt(csvfiles[idx, jdx], delimiter=',').T

    res_y_paper = sp.zeros((y_paper.shape[0],y_paper.shape[1],npoints))
    for r in range(y_paper.shape[0]):
        for c in range(y_paper.shape[1]):
            res_y_paper[r,c,:] = sp.signal.resample(y_paper[r,c,:],npoints)
    gt = [t_paper,res_y_paper]

    extra_vars = {}
    extra_vars['scale'] = scale
    extra_vars['npoints'] = npoints
    extra_vars['size'] = size
    extra_vars['csize'] = csize
    extra_vars['nv'] = nv
    extra_vars['nh'] = nh
    extra_vars['figure_name'] = 'bw'
    extra_vars['return_var'] = 'O'

    optimize_model(x,gt,extra_vars,defaults)
Пример #2
0
def run():
    defaults = PaperDefaults()

    #David's globals
    size = 51
    csize = 9
    npoints = 32
    scale = 2.0
    cval = 0.5
    csvfiles = [[ defaults._DATADIR + \
        '/TB2015_%i_%s.csv' % (i, s) \
        for i in range(-90, 90, 30)] for s in ('PS', 'PO')
    ]

    # experiment parameters
    ppop = {
        'kind': 'circular',
        'npoints': npoints,
        'scale': scale,
        'fdomain': (0, 1),
    }

    vals_ang = sp.array([-90., -60., -30., 0., 30., 60.])
    vals = (vals_ang + 90.) / 180.
    imc1 = stim.get_center_surround(size=size,
                                    csize=csize,
                                    cval=cval,
                                    sval=sp.nan)
    x1 = model_utils.get_population(imc1, **ppop)
    x = sp.zeros((2, len(vals), npoints, size, size))

    for vdx, v in enumerate(vals):
        imc2 = stim.get_center_surround(size=size,
                                        csize=csize,
                                        cval=v,
                                        sval=sp.nan)
        ims = stim.get_center_surround(size=size,
                                       csize=csize,
                                       cval=sp.nan,
                                       sval=v)
        x2 = model_utils.get_population(imc2, **ppop)
        xs = model_utils.get_population(ims, **ppop)
        x[0, vdx] = (x1 + x2) / 2.
        x[1, vdx] = (x1 + x2) / 2. + xs
    x.shape = (2 * len(vals), npoints, size, size)

    # trott and born 2015 data
    gt = get_gt(npoints, csvfiles)

    extra_vars = {}
    extra_vars['scale'] = scale
    extra_vars['npoints'] = npoints
    extra_vars['cval'] = cval
    extra_vars['size'] = size
    extra_vars['csize'] = csize
    extra_vars['vals'] = vals
    extra_vars['figure_name'] = 'tbp'
    extra_vars['return_var'] = 'O'

    optimize_model(x, gt, extra_vars, defaults)
Пример #3
0
def run():
    defaults = PaperDefaults()

    #David's globals
    _DEFAULT_TILTEFFECT_DEGPERPIX = .25  # <OToole77>
    _DEFAULT_TILTEFFECT_SIZE = 51  #101
    _DEFAULT_TILTEFFECT_CSIZE = iround(2. / _DEFAULT_TILTEFFECT_DEGPERPIX)
    _DEFAULT_TILTEFFECT_SSIZE = iround(8. / _DEFAULT_TILTEFFECT_DEGPERPIX)
    _DEFAULT_TILTEFFECT_CVAL = .5
    _DEFAULT_TILTEFFECT_SVALS = np.linspace(0.0, 0.5, 10)
    _DEFAULT_TILTEFFECT_SCALES = {'ow77': 0.40, 'ms79': 0.60}  #0.45
    _DEFAULT_TILTEFFECT_NPOINTS = 25  #100
    _DEFAULT_TILTEFFECT_DECODER_TYPE = 'circular_vote'
    _DEFAULT_TILTEFFECT_CSV = {
        'ow77': os.path.join(defaults._DATADIR, 'OW_fig4_Black.csv'),
        'ms79': os.path.join(defaults._DATADIR, 'MS1979.csv'),
    }

    # experiment parameters
    cpt = (_DEFAULT_TILTEFFECT_SIZE // 2, _DEFAULT_TILTEFFECT_SIZE // 2)
    spt = (_DEFAULT_TILTEFFECT_SIZE // 2,
           _DEFAULT_TILTEFFECT_SIZE // 2 + _DEFAULT_TILTEFFECT_CSIZE)
    dt_in = _DEFAULT_TILTEFFECT_CVAL - _DEFAULT_TILTEFFECT_SVALS

    # simulate populations
    im = sp.array([[
        stim.get_center_nfsurrounds(size=_DEFAULT_TILTEFFECT_SIZE,
                                    csize=_DEFAULT_TILTEFFECT_CSIZE,
                                    nsize=_DEFAULT_TILTEFFECT_CSIZE,
                                    fsize=_DEFAULT_TILTEFFECT_SSIZE,
                                    cval=_DEFAULT_TILTEFFECT_CVAL,
                                    nval=_DEFAULT_TILTEFFECT_CVAL,
                                    fval=sval,
                                    bgval=sp.nan)
    ] for sval in _DEFAULT_TILTEFFECT_SVALS])

    # get shifts for model for both papers, and from digitized data
    sortidx = sp.argsort(dt_in)  # re-order in increasing angular differences

    # O'Toole and Wenderoth (1977)
    _, ds_ow77_paper_y = sp.genfromtxt(_DEFAULT_TILTEFFECT_CSV['ow77'],
                                       delimiter=',').T

    extra_vars = {}
    extra_vars['scale'] = _DEFAULT_TILTEFFECT_SCALES['ow77']
    extra_vars['decoder'] = _DEFAULT_TILTEFFECT_DECODER_TYPE
    extra_vars['npoints'] = _DEFAULT_TILTEFFECT_NPOINTS
    extra_vars['npoints'] = _DEFAULT_TILTEFFECT_NPOINTS
    extra_vars['cval'] = _DEFAULT_TILTEFFECT_CVAL
    extra_vars['sortidx'] = sortidx
    extra_vars['cpt'] = cpt
    extra_vars['spt'] = spt
    extra_vars['sval'] = sval
    extra_vars['kind'] = 'circular'
    extra_vars['figure_name'] = 'f3a'
    extra_vars['return_var'] = 'O'
    optimize_model(im, ds_ow77_paper_y, extra_vars, defaults)
Пример #4
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def run():
    defaults = PaperDefaults()

    #David's globals
    size = 51
    csize = 5
    npoints = 64
    scale = 2.0
    neuron_theta = 0.50
    cval = 0.5
    csvfiles = [ defaults._DATADIR + \
        '/TB2015_Fig1B_%s.csv' % (s,) \
    for s in range(-90, 90, 30) + ['CO']]

    # experiment parameters
    cvals = (sp.arange(-90, 90, 30) + 90.) / 180.
    svals = sp.linspace(0.0, 1.0, 6).tolist() + [sp.nan]

    neuron_thetas = sp.linspace(0.0, 1.0, npoints)
    neuron_idx = sp.argmin(sp.absolute(neuron_thetas - neuron_theta))

    stims = [
        stim.get_center_surround(size=size, csize=csize, cval=cv, sval=sv)
        for cv in cvals for sv in svals
    ]

    x = sp.array([
        model_utils.get_population(im,
                                   npoints=npoints,
                                   kind='circular',
                                   scale=scale,
                                   fdomain=(0, 1)) for im in stims
    ])

    # [Array shapes]
    # trott and born 2015 data
    gt = get_gt(csvfiles)

    extra_vars = {}
    extra_vars['scale'] = scale
    extra_vars['npoints'] = npoints
    extra_vars['cval'] = cval
    extra_vars['cvals'] = cvals
    extra_vars['svals'] = svals
    extra_vars['size'] = size
    extra_vars['csize'] = csize
    extra_vars['neuron_idx'] = neuron_idx
    extra_vars['figure_name'] = 'tbtcso'
    extra_vars['return_var'] = 'O'

    optimize_model(x, gt, extra_vars, defaults)
Пример #5
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def run():
    defaults = PaperDefaults()

    #David's globals
    size = 51
    mpp = 0.76  # 0.76 # 1.11
    scale = 0.23  # 0.23 # 0.22
    csv_file_x = os.path.join(defaults._DATADIR, 'WL1987_corrected_X.csv')
    csv_file_y = os.path.join(defaults._DATADIR, 'WL1987_corrected_Y.csv')

    # experiment parameters
    dd = (-150., 150.)  # in seconds of arc
    sec2u = lambda s: (s - dd[0]) / (dd[1] - dd[0])
    u2sec = lambda u: u * (dd[1] - dd[0]) + dd[0]
    min2pix = lambda m: iround(m / float(mpp))
    npoints = 50
    ndists = 10
    dists = sp.linspace(0.0, 12., ndists)
    lh, lw = 1, 4.
    ph, pw = 2., 2.
    center_disp = 0.0
    flanker_disp = -33.3
    mp0 = size // 2

    # Need to scale up the ecrfs
    defaults._DEFAULT_PARAMETERS[
        'srf'] = defaults._DEFAULT_PARAMETERS['srf'] * 2 - 1
    defaults._DEFAULT_PARAMETERS[
        'ssn'] = defaults._DEFAULT_PARAMETERS['ssn'] * 2 - 1
    defaults._DEFAULT_PARAMETERS[
        'ssf'] = defaults._DEFAULT_PARAMETERS['ssf'] * 2 - 1

    # simulate populations
    im = get_wl87_stim(size=size,
                       dists=min2pix(dists),
                       cval=sec2u(center_disp),
                       sval=sec2u(flanker_disp),
                       ch=min2pix(lh),
                       cw=min2pix(lw),
                       sh=min2pix(ph),
                       sw=min2pix(pw))

    # Get ground truth data
    paper_data_x = sp.genfromtxt(csv_file_x, delimiter=',')
    paper_data_y = sp.genfromtxt(csv_file_y, delimiter=',') * -1
    paper_fit_y = sfit(sp.linspace(dists.min(), dists.max(), 100),
                       paper_data_x,
                       sp.nanmean(paper_data_y, axis=0),
                       k=2,
                       t=[5.])
    paper_fit_y = paper_fit_y[np.round(
        np.linspace(0, paper_fit_y.shape[0] - 1, ndists)).astype(int)]

    extra_vars = {}
    extra_vars['scale'] = scale
    extra_vars['kind'] = 'gaussian'
    extra_vars['decoder'] = 'circular_vote'
    extra_vars['npoints'] = npoints
    extra_vars['cval'] = sec2u(center_disp)
    extra_vars['sval'] = sec2u(flanker_disp)
    extra_vars['figure_name'] = 'f5'
    extra_vars['u2sec'] = u2sec
    extra_vars['min2pix'] = min2pix
    extra_vars['dists'] = dists
    extra_vars['flanker_disp'] = flanker_disp
    extra_vars['mp0'] = mp0
    extra_vars['lh'] = lh
    extra_vars['pw'] = pw
    extra_vars['size'] = size
    extra_vars['gt_x'] = paper_data_x
    extra_vars['return_var'] = 'O'

    optimize_model(im, paper_fit_y, extra_vars, defaults)
Пример #6
0
def run():
    defaults = PaperDefaults()

    #David's globals
    _DEFAULT_KW97_TILTEFFECT_DEGPERPIX = .45  # <OToole77>
    _DEFAULT_TILTEFFECT_SIZE = 101  #101
    _DEFAULT_KW97_TILTEFFECT_CSIZE = iround(3.6 /
                                            _DEFAULT_KW97_TILTEFFECT_DEGPERPIX)
    _DEFAULT_KW97_TILTEFFECT_NSIZE = iround(5.4 /
                                            _DEFAULT_KW97_TILTEFFECT_DEGPERPIX)
    _DEFAULT_KW97_TILTEFFECT_FSIZE = iround(10.7 /
                                            _DEFAULT_KW97_TILTEFFECT_DEGPERPIX)
    _DEFAULT_TILTEFFECT_CVAL = .5
    _DEFAULT_TILTEFFECT_SVALS = np.linspace(0.0, 0.5, 10)
    _DEFAULT_KW97_TILTEFFECT_SCALE = 1.25
    _DEFAULT_TILTEFFECT_NPOINTS = 25  #100
    _DEFAULT_TILTEFFECT_CIRCULAR = True
    _DEFAULT_TILTEFFECT_DECODER_TYPE = 'circular_vote'
    csvfiles = [
        os.path.join(defaults._DATADIR, 'KW97_GH.csv'),
        os.path.join(defaults._DATADIR, 'KW97_JHK.csv'),
        os.path.join(defaults._DATADIR, 'KW97_LL.csv'),
        os.path.join(defaults._DATADIR, 'KW97_SJL.csv'),
    ]

    # experiment parameters
    cpt = (_DEFAULT_TILTEFFECT_SIZE // 2, _DEFAULT_TILTEFFECT_SIZE // 2)
    spt = (_DEFAULT_TILTEFFECT_SIZE // 2,
           _DEFAULT_TILTEFFECT_SIZE // 2 + _DEFAULT_KW97_TILTEFFECT_CSIZE)
    dt_in = _DEFAULT_TILTEFFECT_CVAL - _DEFAULT_TILTEFFECT_SVALS

    # simulate populations
    im = sp.array([[
        stim.get_center_nfsurrounds(size=_DEFAULT_TILTEFFECT_SIZE,
                                    csize=_DEFAULT_KW97_TILTEFFECT_CSIZE,
                                    nsize=_DEFAULT_KW97_TILTEFFECT_NSIZE,
                                    fsize=_DEFAULT_KW97_TILTEFFECT_FSIZE,
                                    cval=_DEFAULT_TILTEFFECT_CVAL,
                                    nval=sp.nan,
                                    fval=sval,
                                    bgval=sp.nan)
    ] for sval in _DEFAULT_TILTEFFECT_SVALS])

    # get shifts for model for both papers, and from digitized data
    sortidx = sp.argsort(dt_in)  # re-order in increasing angular differences

    # O'Toole and Wenderoth (1977)
    n_subjects = len(csvfiles)
    ds_kw97_paper_x = sp.zeros((n_subjects, 9))
    ds_kw97_paper_y = sp.zeros((n_subjects, 9))

    for sidx, csv in enumerate(csvfiles):
        ds_kw97_paper_x[sidx], ds_kw97_paper_y[sidx] = \
            sp.genfromtxt(csv, delimiter=',').T

    ds_kw97_paper_x = (ds_kw97_paper_x + 360.) % 360. - 45.
    ds_kw97_paper_y = 45. - ds_kw97_paper_y

    for sidx in range(n_subjects):
        ds_kw97_paper_x[sidx] = ds_kw97_paper_x[sidx][sp.argsort(
            ds_kw97_paper_x[sidx])]

    extra_vars = {}
    extra_vars['scale'] = _DEFAULT_KW97_TILTEFFECT_SCALE
    extra_vars['decoder'] = _DEFAULT_TILTEFFECT_DECODER_TYPE
    extra_vars['npoints'] = _DEFAULT_TILTEFFECT_NPOINTS
    extra_vars['npoints'] = _DEFAULT_TILTEFFECT_NPOINTS
    extra_vars['cval'] = _DEFAULT_TILTEFFECT_CVAL
    extra_vars['sortidx'] = sortidx
    extra_vars['cpt'] = cpt
    extra_vars['spt'] = spt
    extra_vars['sval'] = sval
    extra_vars['kind'] = 'circular'
    extra_vars['figure_name'] = 'f3b'
    extra_vars['return_var'] = 'O'

    adjusted_gt = signal.resample(np.mean(ds_kw97_paper_y, axis=0), 10)
    optimize_model(im, adjusted_gt, extra_vars, defaults)
Пример #7
0
def run(initialize_model=False):
    defaults = PaperDefaults()

    #David's globals
    _DEFAULT_KW2015_SO_PARAMETERS = {
        'filters': {
            'name': 'gabors',
            'aspect_ratio': .6,
            'sizes': sp.array([9]),
            'spatial_frequencies': sp.array([[9.0]]),
            'orientations': sp.arange(2) * sp.pi / 2,
            'phases': sp.array([0]),
            'with_center_surround': False,
            'padding': 'reflect',
            'corr': False,
            'ndp': False
        },
        'model': {
            'channels_so': ('R+G-', 'B+Y-', 'R+C-', 'Wh+Bl-', 'G+R-', 'Y+B-',
                            'C+R-', 'Bl+Wh-'),
            'normalize':
            False
        },
        'dnp_so': None,
        'selected_channels': [0, 1, 3, 4, 5, 7],
        'norm_channels': [0, 1, 3, 4, 5, 7]
    }

    size = 51
    csize = 9
    n_train = 32
    n_t_hues = 16
    n_s_hues = 16
    csvfiles = [
        defaults._DATADIR + '/KW2015_%i.csv' % (i, )
        for i in range(0, 360, 45)
    ]

    #Load data from experiments
    kw2015_fig2_x = sp.zeros((len(csvfiles), 16))
    kw2015_fig2_y = sp.zeros((len(csvfiles), 16))
    for idx, csv in enumerate(csvfiles):
        kw2015_fig2_x[idx], kw2015_fig2_y[idx] = \
            sp.genfromtxt(csv, delimiter=',')[1:].T

    # experiment stimuli
    extra_vars = {}
    extra_vars['_DEFAULT_KW2015_SO_PARAMETERS'] = _DEFAULT_KW2015_SO_PARAMETERS
    extra_vars['_DEFAULT_FLOATX_NP'] = defaults._DEFAULT_FLOATX_NP
    extra_vars['size'] = size
    extra_vars['csize'] = csize
    extra_vars['n_train'] = n_train
    extra_vars['n_t_hues'] = n_t_hues
    extra_vars['n_s_hues'] = n_s_hues
    extra_vars['figure_name'] = 'f4'
    extra_vars['gt_x'] = kw2015_fig2_x
    extra_vars['f4_stimuli_file'] = defaults.f4_stimuli_file
    extra_vars['return_var'] = 'I'
    extra_vars['precalculated_x'] = True
    extra_vars['aux_y'] = []
    extra_vars['percent_reg_train'] = 80.

    if initialize_model:
        create_stims(extra_vars)
    stim_files = np.load(extra_vars['f4_stimuli_file'])
    extra_vars['stims_all_lms'] = stim_files['stims_all_lms']

    #Run model
    #cx.run(so_all, from_gpu=False)
    #sx_all[:] = cx.Y.get()[:, :, size//2, size//2]
    adj_gt = np.mean(kw2015_fig2_y, axis=0)
    im = stim_files['so_ind'].reshape(
        n_t_hues * n_s_hues,
        len(_DEFAULT_KW2015_SO_PARAMETERS['norm_channels']), size, size)
    extra_vars['aux_data'] = stim_files['so_all'].transpose(0, 2, 3, 1)
    extra_vars['cs_hue_diff'] = stim_files['cs_hue_diff']

    optimize_model(im, adj_gt, extra_vars, defaults)