fmri_showslices

Description

FMRI_SHOWSLICES Displays continuous brain data as a series of 2D slices. Renders a continuous-valued brain map as a mosaic of axial, sagittal, or coronal slices overlaid on the greyscale brain template. Each slice is equally spaced by INTERVAL voxels. Suitable for statistical maps, correlation maps, tSNR maps, etc.

Usage

fmri_showslices(data)
fmri_showslices(data, direction, interval, clim, txt, alpha, cbar)

Inputs

DATA: Continuous brain map, vectorized (228453 x 1).
DIRECTION: Slice plane: 1=axial (default), 2=sagittal
INTERVAL: Voxel spacing between displayed slices (1 or 2). Default: 2.
CLIM: Colour axis limits [min max]. Default: auto.
TXT: Title string. Default: ‘’ (no title).
ALPHA: Opacity of the overlay (0=transparent, 1=opaque). Default: 1. CBAR (optional) = colorbar flag (default = 0 (no colorbar))

Examples

fmri_showslices(r_map)
fmri_showslices(z_map, 1, 2, [2 6])
fmri_showslices(tsnr, 1, 3, [0 100], hot)
D = fmri_voxdist(ind1, 1:228453);   % 1 x 228453
fmri_showslices(D',  1, 2, [0 128],1)           % default diverging
fmri_showslices(D',  1, 2, [0 128],1,[],[], 'hot')   % named colormap
fmri_showslices(D',  1, 2, [0 128],1,[],[], 'winter')
fmri_showslices(D',  1, 2, [0 128],1,[],1, [0 0 0.8; 0.7 0.5 1; 1 1 1; 0.4 1 0.4; 1 0 0]) % custom Nx3 matrix
2 colors: simple black to white
fmri_showslices(D, 1, 2, [-128 128], 1, [], [], [0 0 0; 1 1 1])
% 3 colors: classic diverging
fmri_showslices(D, 1, 2, [0 128], 1, [], [], [0 0 0.8; 0.7 0.7 0.7; 1 0 0])
% 5 colors: multi-transition
fmri_showslices(D, 1, 2, [0 128], 1, [], [], [0 0 0.8; 0.7 0.5 1; 1 1 1; 0.4 1 0.4; 1 0 0])
% 7 colors: rainbow-like
fmri_showslices(D, 1, 2, [0 128], 1, [], [], [0 0 1; 0 0.5 1; 0 1 1; 0 1 0; 1 1 0; 1 0.5 0; 1 0 0])
% black to red (heat)
fmri_showslices(D, 1, 2, [0 128], 1, [], [], [0 0 0; 1 0 0])
% black to yellow (like 'hot')
fmri_showslices(D, 1, 2, [0 128], 1, [], [], [0 0 0; 1 0 0; 1 1 0])