Quick Reference

Regions of Interest (ROIs): Labels and Indices

Finalized surface-based ROIs are located in each subject's surface directory, e.g.,

~/MR_DATA/surfaces/KK/rois/

The following is a list of ROI files, the ROI labels and indices contained in each file, and a description of how that ROI was defined (i.e., what contrast was used).  Note that if an ROI is missing from a file for a particular subject, it is possible that it could not be defined from the data collected.

ToDo: add link or PDF for Wang et al. (submitted) as a general reference for ROI border definitions, original references, and example subjects.  Paper is currently under review.

Retinotopy-based ROIs

Retinotopy ROIs are defined based on polar angle and eccentricity representations.  For a general reference on how these ROIs are defined, along with original references and some example phase maps, see Wang et al. (under review) and see Wandell and Winawer (2011, Neuron) and Silver and Kastner (2009, TICS) for general reviews.  Retinotopy ROI files are labeled like

ret-lh.1D.dset

ret-rh.1D.dset

and contain the following ROIs:

• • "Early Visual Cortex" (see Sereno et al. 1995; DeYoe et al. 1996; Engel et al. 1997)

  • 1 = V1 (Primary Visual Cortex)

    • 2 = V2v (Secondary Visual Cortex, ventral)

    • 3 = V2d (Secondary Visual Cortex, dorsal)

  • 4 = V3v (ventral)

  • 5 = V3d (dorsal)

  • Ventral-Temporal ROIs (see Wade et al. 2002, Brewer et al. 2005, Arcaro et al. 2009)

    • 50 = hV4 (Human Area V4)

  • 51 = VO1 (Ventral Occipital)

  • 52 = VO2

  • 53 = PHC1 (Parahippocampal Cortex)

  • 54 = PHC2

  • Dorsal-Occipital ROIs (see Press et al. 2001, ) 

  • 150 = V3a

  • 151 = V3b

  • 152 = V7 (same as IPS0)

  • Lateral-Occipital/Termporal ROIs (see Larsson and Heeger 2006, Amano et al. 2009)

    • 100 = LO1 (lateral occipital)

  • 101 = LO2

    • 102 = TO1 (temporal occipital)

  • 103 = TO2

  • Parietal ROIs (see Konen and Kastner, 2008)

  • 152 = IPS0 (Intraparietal Sulcus, same as V7)

  • 153 = IPS1

  • 154 = IPS2

  • 155 = IPS3

  • 156 = IPS4

  • 157 = IPS5

  • 158 = SPL1 (Superior Parietal Sulcus)

  • Frontal ROIs (see Kastner et al. 2007)

  • 200 = hFEF (Human Frontal Eye Fields)

All of these ROIs contain a full representation of the contralateral hemifield, except V2v/d and V3v/d, which represent the upper (ventral ROIs) or lower (dorsal ROIs) quadrant of the contralateral hemifield.

MT-Object ROIs

MT-Object ROIs are defined based on contrasts between different categories of objects or by motion (for hMT+).  Our object localizer includes Faces, Houses, Objects, and Scrambled Objects.  The MT localizer includes Motion and No-Motion conditions.  MT-Object ROI files are labeled like

mt-obj-lh.1D.dset

mt-obj-rh.1D.dset

and contain the following ROIs:

• • Motion Sensitive ROIs (see Huk et al. 2002)

  • ?? = hMT+ (Human MT Complex)

  • Object Sensitive ROIs (see Kanwisher et al. 1997; Malach et al. 1995; Epstein et al. 1999)

    • 1 = FFA (Fusiform Face Area)

    • ??? weren't we going to split this into anterior and posterior portions ???

  • 2 = PPA (Parahippocampal Place Area)

  • 3 = LOC (Lateral Occipital Cortex or Complex)

  • 4 = pFS (Posterior Fusiform, sometimes lumped with LOC)

  • 5 = LOF (???)

Future Section Header

• To-Add: