PMID- 24531049 OWN - NLM STAT- MEDLINE DCOM- 20141218 LR - 20140430 IS - 1095-9572 (Electronic) IS - 1053-8119 (Linking) VI - 92 DP - 2014 May 15 TI - Resting-state fMRI reveals functional connectivity between face-selective perirhinal cortex and the fusiform face area related to face inversion. PG - 349-55 LID - S1053-8119(14)00096-2 [pii] LID - 10.1016/j.neuroimage.2014.02.005 [doi] AB - Studies examining the neural correlates of face perception and recognition in humans have revealed multiple brain regions that appear to play a specialized role in face processing. These include an anterior portion of perirhinal cortex (PrC) that appears to be homologous to the face-selective 'anterior face patch' recently reported in non-human primates. Electrical stimulation studies in the macaque indicate that the anterior face patch is strongly connected with other face-selective patches of cortex, even in the absence of face stimuli. The intrinsic functional connectivity of face-selective PrC and other regions of the face-processing network in humans are currently less well understood. Here, we examined resting-state fMRI connectivity across five face-selective regions in the right hemisphere that were identified with separate functional localizer scans: the PrC, amygdala (Amg), superior temporal sulcus, fusiform face area (FFA), and occipital face area. A partial correlation technique, controlling for fluctuations in occipitotemporal cortex that were not face specific, revealed connectivity between the PrC and the FFA, as well as the Amg. When examining the 'unique' connectivity of PrC within this face processing network, we found that the connectivity between the PrC and the FFA as well as that between the PrC and the Amg persisted even after controlling for potential mediating effects of other face-selective regions. Lastly, we examined the behavioral relevance of PrC connectivity by examining inter-individual differences in resting-state fluctuations in relation to differences in behavioral performance for a forced-choice recognition memory task that involved judgments on upright and inverted faces. This analysis revealed a significant correlation between the increased accuracy for upright faces (i.e., the face inversion effect) and the strength of connectivity between the PrC and the FFA. Together, these findings point to a high degree of functional integration of face-selective aspects of PrC in the face processing network with notable behavioral relevance. CI - Copyright (c) 2014 Elsevier Inc. All rights reserved. FAU - O'Neil, Edward B AU - O'Neil EB AD - The Brain and Mind Institute and Department of Psychology, University of Western Ontario, London, Ontario N6A 5C2, Canada. Electronic address: edoneil@gmail.com. FAU - Hutchison, R Matthew AU - Hutchison RM AD - Robarts Research Institute, University of Western Ontario, London, Ontario N6A 5C2, Canada. FAU - McLean, D Adam AU - McLean DA AD - The Brain and Mind Institute and Department of Psychology, University of Western Ontario, London, Ontario N6A 5C2, Canada. FAU - Kohler, Stefan AU - Kohler S AD - The Brain and Mind Institute and Department of Psychology, University of Western Ontario, London, Ontario N6A 5C2, Canada; Rotman Research Institute, Baycrest Centre, Toronto, Ontario M6A 2E1, Canada. Electronic address: stefank@uwo.ca. LA - eng GR - MOP93644/British Heart Foundation/United Kingdom PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140212 PL - United States TA - Neuroimage JT - NeuroImage JID - 9215515 SB - IM MH - Adult MH - Cerebral Cortex/*physiology MH - Connectome/*methods MH - *Face MH - Female MH - Humans MH - Magnetic Resonance Imaging/*methods MH - Male MH - Nerve Net/*physiology MH - Neural Pathways/physiology MH - Pattern Recognition, Visual/*physiology MH - Rest/physiology MH - Young Adult OTO - NOTNLM OT - Anterior face patch OT - FFA OT - Face inversion OT - Perirhinal cortex OT - Resting-state connectivity OT - fMRI EDAT- 2014/02/18 06:00 MHDA- 2014/12/19 06:00 CRDT- 2014/02/18 06:00 PHST- 2013/09/26 00:00 [received] PHST- 2014/01/28 00:00 [revised] PHST- 2014/02/02 00:00 [accepted] PHST- 2014/02/18 06:00 [entrez] PHST- 2014/02/18 06:00 [pubmed] PHST- 2014/12/19 06:00 [medline] AID - S1053-8119(14)00096-2 [pii] AID - 10.1016/j.neuroimage.2014.02.005 [doi] PST - ppublish SO - Neuroimage. 2014 May 15;92:349-55. doi: 10.1016/j.neuroimage.2014.02.005. Epub 2014 Feb 12.