get_bold

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get_bold#

snake.core.handlers.activations.bold.get_bold(tr_ms, max_time, event_condition, hrf_model, oversampling, min_onset, bold_strength)[source]#

Convolve the HRF with the event condition to generate the BOLD signal.

Parameters:

  • frame_times – array-like of shape (n_times,) The timing of the acquisition

  • event_condition (DataFrame) – array-like of shape (3, n_events) yields description of events for this condition as a (onsets, durations, amplitudes) triplet

  • hrf_model (str) – Choice for the HRF, FIR is not

  • oversampling (int) – Oversampling factor to perform the convolution. Default=50.

  • min_onset (float) – Minimal onset relative to frame_times[0] (in seconds) events that start before frame_times[0] + min_onset are not considered. Default=-24.

  • duration – Duration of the event in seconds.

  • offset – Offset of the event in seconds.

  • bold_strength (float) – Strength of the BOLD signal.

  • tr_ms (float)

  • max_time (float)

Returns:

The convolved HRF with the event condition.

Return type:

np.ndarray

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