Armelle Viard » Chercheurs / Enseignants chercheurs

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Armelle Viard

Autobiographical memory, Future thinking, Neuroimaging

Travail UMR_S 1077 INSERM-EPHE-UNICAEN Centre Cyceron Bvd Becquerel BP 5229 Caen Cedex 5 F-14074 France

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Informations biographiques

Current research interests

I am interested in studying autobiographical memory and future thinking, using cognitive and neuroimaging measures.

  • Autobiographical memory

My research is focused on identifying the role of the medial temporal lobe, specifically the hippocampus, in the recollection of episodic autobiographical memories, especially those encoded in the far past, in order to test the memory consolidation theories (Viard et al., 2007, 2010, 2013).

  • Future thinking

Another facet of episodic memory is the ability to project ourselves into the future, in order to plan and pre-experience future projects. I am interested in understanding similarities and differences between past and future mental time travel (Viard et al., 2011, 2012, 2014).

  • Translational research

I am involved in numerous translational projects, through collaborations with other researchers: 1) examining the impact of trauma on adolescent stress in PTSD (B. Guillery-Girard); 2) studying compensative processes in functional and hippocampal amnesia (P. Quinette); 3) examining episodic and semantic memory systems in fronto-temporal dementias (B. Desgranges); 4) examining cognitve and emotional impairments in amyotrophic lateral sclerosis (B. Desgranges); 5) determining sustained and impaired cognitive abilities in patients with breast cancer (B. Giffard); 6) exploring the effects of reminiscence therapy on memory (R. Roche/A. Allen).

  • Methods and participants

My work is based on neuroimaging studies (structural MRI, resting state functional MRI, task-based functional MRI) and neuropsychological data from neurodegenerative patients (semantic dementia, Alzheimer’s disease), amnesic syndromes (developmental amnesia, autoimmune encephalitis) and psychiatric patients (PTSD).

Peer-reviewed articles

o    Caillaud M, Bejanin A, Laisney M, Gagnepain P, Gaubert M, Viard A, Clochon P, de La Sayette V, Allain P, Eustache F, Desgranges B. Influence of emotional complexity on the neural substrates of affective theory of mind. Hum Brain Mapp (in press).

o    Laillier R, Viard ACaillaud M, Duclos H, Bejanin A, de La Sayette V, Eustache F, Desgranges B, Laisney M. Neurocognitive determinants of theory of mind across the adult lifespan. Brain Cogn (in press).

o    Perrier J, Viard A, Levy C, Morel N, Allouache D, Noal S, Joly F, Eustache F, Giffard B. Longitudinal investigation of cognitive deficits in breast cancer patients and their gray matter correlates: impact of education level. Brain Imaging Behav (in press).

o    Viard A, Mutlu J, Chanraud S, Guénolé F, Egler PJ, Gerardin P, Baleyte JM, Dayan J, Eustache F, Guillery-Girard B (2019) Altered default mode network connectivity in adolescents with post-traumatic stress disorder. Neuroimage: Clin 22:101731.

o    Postel C, Viard A, André C, Guénolé F, de Flores R, Baleyte JM, Gerardin P, Eustache F, Dayan J, Guillery-Girard B (2019) Hippocampal subfields alterations in adolescents with post-traumatic stress disorder. Hum Brain Mapp 40(4):1244-1252.

o    Dégeilh F, Viard A, Guénolé F, Gaubert M, Egler PJ, Egret S, Gerardin P, Baleyte JM, Eustache F, Dayan J, Guillery-Girard B (2017) Functional brain alterations during self-reference processing in adolescents with sexual abuse-related post-traumatic stress disorder: A preliminary report. Neurocase 23(1):52-59.

o    Duclos H, De la Sayette V, Bonnet AL, Viard A, Eustache F, Desgranges B, Laisney M (2017) Social cognition in the frontal variant of Alzheimer’s disease: a case study. J Alzheimers Dis 55(2):459-463.

o    Eustache F, Viard A, Desgranges B (2016) The MNESIS model: memory systems and processes, identity and future thinking. Neuropsychologia 87:96-109.

o    Dégeilh F, Guillery-Girard B, Dayan J, Gaubert M, Chételat G, Egler PJ, Baleyte JM, Eustache F, Viard A (2015) Neural Correlates of Self and Its Interaction With Memory in Healthy Adolescents. Child Dev 86:1966-83.

o    Morel N, Dayan J, Piolino P, Viard A, Allouache D, Noal S, Levy C, Joly F, Eustache F, Giffard B (2015) Emotional specificities of autobiographical memory after breast cancer diagnosis. Conscious Cogn 35:42-52.

o    Viard A, Piolino P, Belliard S, de La Sayette V, Desgranges B, Eustache F (2014) Episodic future thinking in semantic dementia: a cognitive and fMRI study. PLoS One 9: e111046

o    Viard A, Desgranges B, Matuszewski V, Lebreton K, Belliard S, de La Sayette V, Eustache F, Piolino P (2013) Autobiographical memory in semantic dementia: new insights from two patients using fMRI. Neuropsychologia 51: 2620-2632.

o    Giffard B, Viard A, Dayan J, Morel N, Joly F, Eustache F (2013) Autobiographical memory, self, and stress-related psychiatric disorders: Which implications in cancer patients? Neuropsychol Rev 23: 157-168.

o    Guillery-Girard B, Clochon P, Giffard B, Viard A, Egler PJ, Baleyte JM, Eustache F, Dayan J (2013) « Disorganized in time »: Impact of bottom-up and top-down negative emotion generation on memory formation among healthy and traumatized adolescents. J Physiol Paris 107: 247-254.

o    Viard A, Desgranges B, Eustache F, Piolino P (2012) Factors affecting medial temporal lobe engagement for past and future episodic events: an ALE meta-analysis of neuroimaging studies. Brain Cogn 80: 111-125.

o    Bejanin A, Viard A, Chételat G, Clarys D, Bernard F, Pélerin A, de La Sayette V, Eustache F, Desgranges B (2012) When Higher Activations Reflect Lower Deactivations: A PET Study in Alzheimer’s Disease during Encoding and Retrieval in Episodic Memory. Front Hum Neurosci 6: 107.

o    Viard A, Doeller CF, Hartley T, Bird CM, Burgess N (2011) Anterior hippocampus and goal-directed spatial decision making. J Neurosci 31: 4613-4621.

o    Viard A, Chételat G, Lebreton K, Desgranges B, Landeau B, de La Sayette V, Eustache F, Piolino P (2011) Mental time travel into the past and the future in healthy aged adults: an fMRI study. Brain Cogn 75: 1-9.

o    Viard A, Lebreton K, Chételat G, Desgranges B, Landeau B, Young A, de La Sayette V, Eustache F, Piolino P (2010) Patterns of hippocampal-neocortical interactions in the retrieval of episodic autobiographical memories across the entire life-span of aged adults. Hippocampus 20: 153-165.

o    Viard A, Piolino P, Desgranges B, Chételat G, Lebreton K, Landeau B, Young A, De La Sayette V, Eustache F (2007) Hippocampal activation for autobiographical memories over the entire lifetime in healthy aged subjects: an fMRI study. Cereb Cortex 17:2453-2467.

o    Artiges E, Martelli C, Naccache L, Bartrés-Faz D, Leprovost JB, Viard A, Paillère-Martinot ML, Dehaene S, Martinot JL (2006) Paracingulate sulcus morphology and fMRI activation detection in schizophrenia patients. Schizophr Res 82:143-151.

o    Viard A, Flament MF, Artiges E, Dehaene S, Naccache L, Cohen D, Mazet P, Mouren MC, Martinot JL (2005) Cognitive control in childhood-onset obsessive-compulsive disorder: a functional MRI study. Psychol Med 35:1007-1017.

o    Dehaene S, Artiges E, Naccache L, Martelli C, Viard A, Schürhoff F, Recasens  C, Martinot ML, Leboyer M, Martinot JL (2003) Conscious and subliminal conflicts in normal subjects and patients with schizophrenia: the role of the anterior cingulate. Proc Natl Acad Sci U S A 100:13722-13727.

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