QMRITools`

QMRITools`

FindActivations

FindActivations[data]

Finds the activation in MUMRI or DTI data after data normalization.

FindActivations[data,mask]

Finds the activation in MUMRI or DTI data after data normalizeation within the mask.

Details

The following options can be given:

	ActivationThreshold	{3., 0.6}	ActivationThreshold is an option for FindActivations. Fist value is the number of standard deviations second is the pecentage threshold.
	ThresholdMethod	"Both"	ThresholdMethod is an option for FindActivations. Values can be "StandardDeviation", "Fraction" or "Both".
	ActivationOutput	"Activation"	ActivationOutput is an option for ActivationOutput. If set to All aslo the mn and treshhold values are retured.
	MaskDilation	0	MaskDilation is an option for Mask, SmoothMask and SmoothSegmentation. If the value is greater than 0 it will dilate the mask, if the value is smaller than 0 it will erode the mask.
	IgnoreSlices	{0, 0}	IgnoreSlices is an option for FindActivations and SelectActivations. Determins how many slices of the start and end of the dataset are ignored.
	ActivationBackground	10	ActivationBackground is an option for FindActivations. If all normalized signals, which range between 0-150, are below this value the algorithm does notihing.
	ActivationIterations	10	ActivationIterations is an option for FindActivations. The maximum number of iteration that can be used for activation detection.

Examples