PMID- 27150707 OWN - NLM STAT- MEDLINE DCOM- 20170512 LR - 20191210 IS - 1873-3514 (Electronic) IS - 0028-3932 (Linking) VI - 90 DP - 2016 Sep TI - Temporal lobe contribution to perceptual function: A tale of three patient groups. PG - 33-45 LID - S0028-3932(16)30150-6 [pii] LID - 10.1016/j.neuropsychologia.2016.05.002 [doi] AB - There has been growing recognition of the contribution of medial and anterior temporal lobe structures to non-mnemonic functions, such as perception. To evaluate the nature of this contribution, we contrast the perceptual performance of three patient groups, all of whom have a perturbation of these temporal lobe structures. Specifically, we compare the profile of patients with focal hippocampal (HC) lesions, those with more extensive lesions to the medial temporal lobe (MTL) that include HC and perirhinal cortex (PrC), and those with congenital prosopagnosia (CP), whose deficit has been attributed to the disconnection of the anterior temporal lobe from more posterior structures. All participants completed a range of'oddity' tasks in which, on each trial, they determined which of four visual stimuli in a display was the'odd-one-out'. There were five stimulus categories including faces, scenes, objects (high and low ambiguity) and squares of different sizes. Comparisons were conducted separately for the HC, MTL and CP groups against their matched control groups and then the group data were compared to each other directly. The group profiles were easily differentiable. Whereas the HC group stood out for its difficulty in discriminating scenes and the CP group stood out for its disproportionate difficulty in discriminating faces with milder effects for scenes and high ambiguity objects, the MTL group evinced a more general discrimination deficit for faces, scenes and high ambiguity objects. The group differences highlight distinct profiles for each of the three groups and distinguish the signature perceptual impairments following more extended temporal lobe alterations. In the recent reconsideration of the role of the hippocampus and neocortex, Moscovitch and colleagues (Moscovitch et al., 2016) note that the medial temporal lobe structures play a role in non-mnemonic functions, such as perception, problem solving, decision-making and language. Here, we address this exact issue, specifically with respect to perception, and we dedicate this paper to Morris Moscovitch in recognition of his profound contribution to science, to his students and to his colleagues. CI - Copyright (c) 2016 Elsevier Ltd. All rights reserved. FAU - Behrmann, M AU - Behrmann M AD - Department of Psychology and Center for the Neural Basis of Cognition, Carnegie Mellon University, Pittsburgh PA 15213-3890, United States. Electronic address: behrmann@cmu.edu. FAU - Lee, A C H AU - Lee AC AD - Rotman Research Institute, Toronto, ON, Canada M6A 2E1; Department of Psychology (Scarborough), University of Toronto, Toronto, ON, Canada M1C 1A4. FAU - Geskin, J Z AU - Geskin JZ AD - Department of Psychology and Center for the Neural Basis of Cognition, Carnegie Mellon University, Pittsburgh PA 15213-3890, United States. FAU - Graham, K S AU - Graham KS AD - Cardiff University Brain Research Imaging Centre and School of Psychology, Cardiff University, Maindy Road, Cardiff CF24 4HQ, UK. FAU - Barense, M D AU - Barense MD AD - Rotman Research Institute, Toronto, ON, Canada M6A 2E1; Department of Psychology (St George), University of Toronto, Toronto, ON, Canada M5S 3G3. LA - eng GR - MOP-115148/CIHR/Canada GR - G1002149/Medical Research Council/United Kingdom GR - BB/1007091/1/Biotechnology and Biological Sciences Research Council/United Kingdom PT - Journal Article DEP - 20160502 PL - England TA - Neuropsychologia JT - Neuropsychologia JID - 0020713 RN - Prosopagnosia, hereditary SB - IM MH - Adult MH - Analysis of Variance MH - Brain Injuries/diagnostic imaging/pathology/*physiopathology MH - Case-Control Studies MH - Discrimination, Psychological MH - Female MH - Hippocampus/diagnostic imaging/*physiopathology MH - Humans MH - Male MH - Middle Aged MH - Perceptual Disorders/etiology/pathology MH - Photic Stimulation MH - Prosopagnosia/*congenital/diagnostic imaging/pathology MH - Recognition, Psychology MH - Temporal Lobe/diagnostic imaging/*physiopathology MH - Visual Perception/*physiology OTO - NOTNLM OT - Amnesia OT - Congenital prosopagnosia OT - Hippocampus OT - Medial temporal lobe OT - Perception OT - Perirhinal cortex OT - Visual discrimination EDAT- 2016/05/07 06:00 MHDA- 2017/05/13 06:00 CRDT- 2016/05/07 06:00 PHST- 2016/01/21 00:00 [received] PHST- 2016/04/08 00:00 [revised] PHST- 2016/05/02 00:00 [accepted] PHST- 2016/05/07 06:00 [entrez] PHST- 2016/05/07 06:00 [pubmed] PHST- 2017/05/13 06:00 [medline] AID - S0028-3932(16)30150-6 [pii] AID - 10.1016/j.neuropsychologia.2016.05.002 [doi] PST - ppublish SO - Neuropsychologia. 2016 Sep;90:33-45. doi: 10.1016/j.neuropsychologia.2016.05.002. Epub 2016 May 2.