Module vision

source code

Vision-specific analysis functions.

$Id: featureresponses.py 7714 2008-01-24 16:42:21Z antolikjan $

Version: $Revision: 7714 $

Classes

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measure_and_analyze_complexity
Macro for measuring orientation preference and then analyzing its complexity.

Functions

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_complexity_rec(x, y, index, depth, fm)
Recurrent helper function for complexity()

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complexity(full_matrix)

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compute_ACDC_orientation_tuning_curves(full_matrix, curve_label, sheet)
This function allows and alternative computation of orientation tuning curve where for each given orientation the response is computed as a maximum of AC or DC component across the phases instead of the maximum used as a standard in Topographica

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phase_preference_scatter_plot(sheet_name, diameter=0.39)

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analyze_complexity(full_matrix, simple_sheet_name, complex_sheet_name, filename=None)
Compute modulation ratio for each neuron, to distinguish complex from simple cells.

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Variables

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max_value = 0

global_index = ()

pg = TemplatePlotGroup(auto_refresh=False, category='Preferenc...

__package__ = 'topo.analysis'

Function Details

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analyze_complexity(full_matrix, simple_sheet_name, complex_sheet_name, filename=None)

source code

Compute modulation ratio for each neuron, to distinguish complex from simple cells.

Uses full_matrix data obtained from measure_or_pref().

If there is a sheet named as specified in simple_sheet_name, also plots its phase preference as a scatter plot.

Variables Details

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pg

Value:

TemplatePlotGroup(auto_refresh=False, category='Preference Maps', desired_maximum_
plot_height=0, doc='Measure preference for sine grating orientation.', enforce_min
imum_plot_height=True, integer_scaling=False, name='Orientation Preference and Com
plexity', normalize='None', plot_hooks=[], plot_immediately=False, pre_plot_hooks=
[measure_and_analyze_complexity(apply_output_fns=None, display=False, duration=Non
e, frequencies=[2.3999999999999999], generator_sheets=[], max_speed=0.083333333333
333329, name='measure_and_analyze_complexity00113', num_direction=0, num_disparity
=1, num_hue=1, num_ocularity=1, num_orientation=4, num_phase=18, num_speeds=4, off
...