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. 2011 Mar 4;21(10):2233–2243. doi: 10.1093/cercor/bhq296

Table 1.

Selected methodological variables by study type

Study Low-pass filter Global signal removalbased on Task regression selection Seed selection based on Whole-brain field of view
GU: Studies supporting general underconnectivity
    Anderson et al. (2010) Yes No Noa (anat)b No
    Assaf et al. (2010) ns No Noa aCOMB No
    Bird et al. (2006) No ns No aCOMB No
    Cherkassky et al. (2006) No No No aCOMB No
    Damarla et al. (2010) ns ns No aCOMB No
    Jones et al. (2010): M1 Yes No No aCOMB+aTD No
    Jones et al. (2010): M2/3 Yes No Yes aCOMB+aTD No
    Just et al. (2004) ns ns No aTD (litTD) No
    Just et al. (2007) Yes ns No aCOMB No
    Kana et al. (2006) Yes ns No aCOMB No
    Kana et al. (2007) Yes ns No aCOMB No
    Kana et al. (2009) No Yes No aCOMB No
    Kennedy and Courchesne (2008) Yes Yes Noa aTD No
    Kleinhans et al. (2008) No ns No aCOMB Yes
    Koshino et al. (2008) Yes ns No aCOMB No
    Lee et al. (2009) No No No aCOMB No
    Lombardo et al. (2010) No Yes No aTD (litTD) No
    Mason et al. (2008) No ns No aCOMB No
    Mostofsky et al. (2009) No ns No aCOMB No
    Solomon et al. (2009) No ns No aTD No
    Villalobos et al. (2005) No ns Yes anat Yes
    Weng et al. (2010) Yes ns Noa anat (litTD) No
NGU: Studies inconsistent with general underconnectivity
    Agam et al. (2010)c Yes ns No anat+aCOMB Yes
    Ebisch et al. (2010)c Yes Yes Noa litTD+aTD Yes
    Jones et al. (2010): M3 + GSR Yes Yes Yes aCOMB+aTD No
    Koshino et al. (2005) ns ns No anat No
    Mizuno et al. (2006) Yes No Yes anat Yes
    Monk et al. (2009) Yes ns Noa aTD (litTD) No
    Noonan et al. (2009) Yes No Yes aCOMB Yes
    Shih et al. (2010) Yes No Yes litTD+anat Yes
    Turner et al. (2006) Yes No Yes anat Yes
    Welchew et al. (2005) ns ns No anat Yes
    Wicker et al. (2008) ns No No litTD+aTD No

Note: aCOMB, activation in TD and ASD groups combined; anat, anatomical landmarks. aTD, activation in TD group; litTD, expected activation site based on TD literature; ns, not stated.

a

Study used resting-state data (see Results for explanation why these were coded as non–task regressed).

b

Study tested for fcMRI effects for each anatomical brain voxel and its contralateral homolog.

c

Study graphically reports mixed fcMRI effects (both TD > ASD and ASD > TD).