, World Health Organization, 2018.

D. Sur, American Psychiatric Association. DSM-5, manuel diagnostique et statistique des troubles mentaux, 2015.

S. L. Jones, H. D. Hadjistavropoulos, and J. N. Soucy, A randomized controlled trial of guided internetdelivered cognitive behaviour therapy for older adults with generalized anxiety, Journal of Anxiety Disorders. janv, vol.37, pp.1-9, 2016.

A. J. Baxter, K. M. Scott, T. Vos, and H. A. Whiteford, Global prevalence of anxiety disorders: a systematic review and meta-regression, Psychological Medicine. mai, vol.43, issue.05, pp.897-910, 2013.

P. Antoine, C. Antoine, and R. Poinsot, Elderly distress: cognitive schemas identification

, Psychologie & neuropsychiatrie du vieillissement, vol.5, issue.4, pp.305-314, 2007.

M. Bruno and A. Lepetit, Les troubles anxieux de la personne âgée, Gériatrie et Psychologie Neuropsychiatrie du Vieillissement. 1 juin, vol.13, issue.2, pp.205-218, 2015.

J. L. Wetherell, J. A. Stoddard, K. S. White, S. Kornblith, H. Nguyen et al.,

, Augmenting antidepressant medication with modular CBT for geriatric generalized anxiety disorder: a pilot study, International journal of geriatric psychiatry. août, vol.26, issue.8, p.869, 2011.

K. Chou, K. Cheung, . In, . Groups, . Older-adults et al., Research Article: Major Depressive Disorder in Older Adults, Depression and Anxiety. juin, vol.30, issue.6, pp.528-565, 2013.

E. J. Lenze, Comorbid Anxiety Disorders in Depressed Elderly Patients, American Journal of Psychiatry. 1 mai, vol.157, issue.5, pp.722-730, 2000.

M. K. Bains, S. Scott, S. Kellett, and D. Saxon, Group psychoeducative cognitive-behaviour therapy for mixed anxiety and depression with older adults, Aging Ment Health, vol.18, issue.8, pp.1057-65, 2014.

R. C. Kessler, N. A. Sampson, P. Berglund, M. J. Gruber, A. Al-hamzawi et al., Anxious and non-anxious major depressive disorder in the World Health Organization World Mental Health Surveys, Epidemiol Psychiatr Sci. juin, vol.24, issue.3, pp.210-236, 2015.

V. M. Wuthrich, R. M. Rapee, M. Kangas, and S. Perini, Randomized controlled trial of group cognitive behavioral therapy compared to a discussion group for co-morbid anxiety and depression in older adults, Psychol Med. mars, 2016.

R. Goodwin and M. Olfson, Treatment of Panic Attack and Risk of Major Depressive Disorder in the Community, American Journal of Psychiatry. juill, vol.158, issue.7, pp.1146-1154, 2001.

R. D. Goodwin and J. M. Gorman, Psychopharmacologic Treatment of Generalized Anxiety Disorder and the Risk of Major Depression, American Journal of Psychiatry, vol.159, issue.11, pp.1935-1942, 2002.

F. Dibie-racoupeau, M. Herrmann, V. Chavane, C. Granet, and J. Safar, , p.27, 2018.

D. Sur,

R. M. Kok and C. F. Reynolds, Management of Depression in Older Adults: A Review, JAMA. 23 mai, vol.317, issue.20, p.2114, 2017.

P. Wilkinson and Z. Izmeth, Continuation and maintenance treatments for depression in older people, The Cochrane Collaboration, éditeur. Cochrane Database of Systematic Reviews

U. K. Chichester, , 2016.

D. Sur,

K. Shinohara, M. Honyashiki, H. Imai, V. Hunot, D. M. Caldwell et al., Behavioural therapies versus other psychological therapies for depression, The Cochrane Collaboration

, Cochrane Database of Systematic Reviews

U. K. Chichester, National Institute for Health and Clinical Excellence. Depression: the treatment and management of depressionin adults, 2010.

M. Krishna, A. Jauhari, P. Lepping, J. Turner, D. Crossley et al., Is group psychotherapy effective in older adults with depression? A systematic review, International Journal of Geriatric Psychiatry. avr, vol.26, issue.4, pp.331-371, 2011.

S. R. Thorp, C. R. Ayers, R. Nuevo, J. A. Stoddard, J. T. Sorrell et al., Meta-analysis

, Comparing Different Behavioral Treatments for Late-Life Anxiety, Am J Geriatr Psychiatry. févr, vol.17, issue.2, pp.105-120, 2009.

T. Gallarda and H. Lôo, Dépression et personnes âgées, L'Encéphale. 1 juin, vol.35, issue.3, pp.269-80, 2009.

B. N. Renn and P. A. Areán, Psychosocial Treatment Options for Major Depressive Disorder in Older Adults, Curr Treat Options Psychiatry. mars, vol.4, issue.1, pp.1-12, 2017.

P. Cuijpers, E. Karyotaki, A. M. Pot, M. Park, and C. F. Reynolds, Managing depression in older age: psychological interventions, Maturitas. oct, vol.79, issue.2, p.160, 2014.

A. J. Petkus and J. L. Wetherell, Acceptance and Commitment Therapy With Older Adults: Rationale and Considerations, Cognitive and Behavioral Practice. 1 févr, vol.20, issue.1, pp.47-56, 2013.

T. Ngô, . Chaloult, . Louis, and J. Goulet, Guide de pratique pour le diagnostic et le traitement cognitivo-comportemental du trouble dépressif majeur. Première édition

N. Kishita and K. Laidlaw, Cognitive behaviour therapy for generalized anxiety disorder: Is CBT equally efficacious in adults of working age and older adults?, Clinical Psychology Review. 1 mars, vol.52, pp.124-160, 2017.

K. B. Wolitzky-taylor, J. J. Arch, D. Rosenfield, and M. G. Craske, Moderators and non-specific predictors of treatment outcome for anxiety disorders: a comparison of cognitive behavioral therapy to acceptance and commitment therapy, J Consult Clin Psychol, vol.80, issue.5, pp.786-99, 2012.

R. L. Gould, M. C. Coulson, and R. J. Howard, Cognitive Behavioral Therapy for Depression in Older People: A Meta-Analysis and Meta-Regression of Randomized Controlled Trials, Journal of the American Geriatrics Society, vol.60, issue.10, pp.1817-1847, 2012.

R. L. Gould, M. C. Coulson, and R. J. Howard, Efficacy of Cognitive Behavioral Therapy for Anxiety Disorders in Older People: A Meta-Analysis and Meta-Regression of Randomized Controlled Trials, Journal of the American Geriatrics Society. févr, vol.60, issue.2, pp.218-247, 2012.

V. M. Wuthrich and R. M. Rapee, Randomised controlled trial of group cognitive behavioural therapy for comorbid anxiety and depression in older adults, Behaviour Research and Therapy. déc, vol.51, issue.12, pp.779-86, 2013.

D. Ducasse and G. Fond, La thérapie d'acceptation et d'engagement. L'Encéphale. févr

A. Losada, M. Márquez-gonzález, R. Romero-moreno, B. T. Mausbach, J. López et al.,

V. Fernández, Cognitive-behavioral therapy (CBT) versus acceptance and commitment therapy (ACT) for dementia family caregivers with significant depressive symptoms: Results of a randomized clinical trial, Journal of Consulting and Clinical Psychology, vol.83, issue.4, pp.760-72, 2015.

K. L. Dalrymple, T. A. Morgan, J. M. Lipschitz, J. H. Martinez, E. Tepe et al.,

, Acceptance-Based Behavioral Approach for Depression With Social Anxiety: Preliminary Results. Behavior modification, juill, vol.38, issue.4, p.516, 2014.

C. Johnco, V. M. Wuthrich, and R. M. Rapee, The Impact of Late-Life Anxiety and Depression on

, Cognitive Flexibility and Cognitive Restructuring Skill Acquisition. Depression and Anxiety, vol.32, issue.10, pp.754-62, 2015.

B. E. Karlin, R. D. Walser, J. Yesavage, A. Zhang, M. Trockel et al., Effectiveness of acceptance and commitment therapy for depression: Comparison among older and younger veterans

, Aging & Mental Health. juill, 2013.

N. Kishita, Y. Takei, and I. Stewart, A meta-analysis of third wave mindfulness-based cognitive behavioral therapies for older people: Third wave mindfulness-based CBT for older people, International Journal of Geriatric Psychiatry. déc, vol.32, issue.12, pp.1352-61, 2017.

M. Pleger, K. Treppner, A. Diefenbacher, C. Schade, C. Dambacher et al., Effectiveness of Acceptance and Commitment Therapy compared to CBT+: Preliminary results. The European Journal of Psychiatry, vol.32, pp.166-73, 2018.

J. L. Wetherell, A. J. Petkus, M. Alonso-fernandez, E. S. Bower, A. Steiner et al., Age moderates response to acceptance and commitment therapy vs. cognitive behavioral therapy for chronic pain, Int J Geriatr Psychiatry. 1 mars, vol.31, issue.3, pp.302-310, 2016.

J. A-tjak, M. L. Davis, N. Morina, M. B. Powers, J. Smits et al., A MetaAnalysis of the Efficacy of Acceptance and Commitment Therapy for Clinically Relevant Mental and Physical Health Problems, Psychotherapy and Psychosomatics, vol.84, issue.1, pp.30-36, 2015.

J. L. Wetherell, L. Liu, T. L. Patterson, N. Afari, C. R. Ayers et al., Acceptance and Commitment Therapy for Generalized Anxiety Disorder in Older Adults

J. A. Yesavage, T. L. Brink, T. L. Rose, O. Lum, V. Huang et al., Development and validation of a geriatric depression screening scale: a preliminary report, J Psychiatr Res, vol.17, issue.1, pp.37-49, 19831982.

, Banque d'instruments

. Réseau-québécois-de-recherche-sur-le and . Vieillissement, , 2018.

L. Waintraub, Echelle de dépression gériatrique (Geriatric Depression Scale

D. Sur,

N. A. Pachana, G. J. Byrne, H. Siddle, N. Koloski, E. Harley et al., Development and validation of the Geriatric Anxiety Inventory, Int Psychogeriatr. févr, vol.19, issue.1, pp.103-117, 2007.

A. Champagne, P. Landreville, P. Gosselin, and P. Carmichael,

, French Canadian version of the Geriatric Anxiety Inventory, Aging Ment Health. janv, vol.22, issue.1, pp.40-45, 2010.

L. Timotin, Impact des comorbidités, de la qualité du sommeil et de la fragilité psycho-sociale sur la qualité de vie des personnes âgées

P. Martin, Echelle de qualité de vie de l'OMS World Health Organization Quality Of Life Version abrégée : WHOQOL-Bref / WHOQOL-26

D. Sur,

A. Harper, WHOQOL-BREF : Introduction,administration, scoring and generic version of the assessment

, World Health Organization, 1996.

D. Sur, Wuthrich, V.M. Ageing Wisely: A Group Program for Overcoming Worry and Low Mood

V. M. Wuthrich, R. M. Rapee, M. Kangas, and S. Perini, Randomized controlled trial of group cognitive behavioral therapy compared to a discussion group for co-morbid anxiety and depression in older adults, Psychological Medicine. mars, vol.46, issue.04, pp.785-95, 2016.

D. Gallagher-thompson, A. Steffen, L. W. Thompson, and . Éditeurs, Handbook of behavioral and cognitive therapies with older adults, vol.347, 2008.

T. Eilenberg, . Frostholm, . Lisbeth, and L. Kronstrand, Acceptance & Commitment Group Therapy (ACT-G) for severe health anxiety, The research Clinic for Functional Disorders and Psychosomatics, 2014.

R. Harris and C. P. Milleville,

D. Boeck and S. , , p.23, 2012.

B. Schoendorff, J. G. Bolduc, and M. La, Thérapie d'acceptation et d'engagement

. De,

B. Supérieur, , p.23, 2011.

D. Sur, Les dimensions du deuil -Conférence intégrale (Evènement INREES) -YouTube

;. Disponible, . Palazzolo, . Jérôme, C. Baudu, and A. Quaderi,

L. W. Thompson, D. W. Coon, D. Gallagher-thompson, B. R. Sommer, and D. Koin, Comparison of
URL : https://hal.archives-ouvertes.fr/hal-01282215

C. Desipramine and . Behavioral, Therapy in the Treatment of Elderly Outpatients With Mild-toModerate Depression, The American Journal of Geriatric Psychiatry. 1 juin, vol.9, issue.3, pp.225-265, 2001.

M. Krishna, P. Lepping, S. Jones, and S. Lane, Systematic review and meta-analysis of group cognitive behavioural psychotherapy treatment for sub-clinical depression, Asian Journal of Psychiatry. 1 août, vol.16, pp.7-16, 2015.

B. Levy, Stereotype Embodiment: A Psychosocial Approach to Aging, Curr Dir Psychol Sci. 1 déc, vol.18, issue.6, pp.332-338, 2009.

G. S. Alexopoulos, P. J. Raue, F. Gunning, D. N. Kiosses, D. Kanellopoulos et al., Engage" Therapy: Behavioral Activation and Improvement of Late-Life Major Depression. The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry, avr, vol.24, issue.4, p.320, 2016.

J. L. Wetherell, M. Gatz, and M. G. Craske, Treatment of generalized anxiety disorder in older adults, Journal of Consulting and Clinical Psychology, vol.71, issue.1, pp.31-40, 2003.

]. Gai-[internet and . Uniquest, , p.11, 2017.