SCD	Subjective Cognitive Decline
MCI	Mild cognitive impairment
AD	Alzheimer’s disease
CS	Character strengths
PPIs	Positive psychology interventions
RCT	Randomized controlled trials
aMCI	amnestic Mild Cognitive Impairment
MAP	Mindfulness Awareness Practice/Program
HEP	Health Education Program
MBT	Mindfulness-based Training
CRT	Cognitive rehabilitation therapy
TAU	Treatment as usual
MT	Mindfulness Training (MT)
PE	Psychoeducation
Pe	Error Positivity
MTP	Mindfulness Training Program
MBI	Mindfulness-based intervention
PBI	Psychoeducation-based intervention
MBAS	Mindfulness-based Alzheimer’s stimulation
CST	Cognitive Stimulation Therapy
PMR	Progressive Muscle Relaxation
CMBAS	Caring Mindfulness-Based Approach for Seniors
HSMP	Health Self-Management Program
PACC5	Preclinical Alzheimer’s Cognitive Composite 5
TMT-A	Trail-Making Test Part A
WAIS-IV	Wechsler Adult Intelligence Scale—Fourth Edition
TMT-B	Trail-Making Test Part B
CEQ	Credibility/Expectancy Questionnaire
ERPs	Event-Related Potentials
EEG	Electroencephalography
ERN	Error-Related Negativity
AMAS-E	Abbreviated Math Anxiety Scale—Elementary
NMR	Need for Mental Regulation
FFMQ	Five-Facet Mindfulness Questionnaire
RBANS	Repeatable Battery for the Assessment of Neuropsychological Status
MMSE	Mini-Mental State Examination
MoCA	Montreal Cognitive Assessment
MAAS	Mindful Attention and Awareness Scale
hs-CRP	High-sensitivity C-Reactive Protein
BDNF	Brain-Derived Neurotrophic Factor
DHEA-S	Dehydroepiandrosterone Sulfate
IL-6	Interleukin 6
IL-1β	Interleukin 1 beta
RAVLT	Rey Auditory Verbal Learning Test
Block Design Test	from WAIS, no abbreviation
fMRI	Functional Magnetic Resonance Imaging
CDR	Clinical Dementia Rating
WAIS-III	Wechsler Adult Intelligence Scale—Third Edition
MRI	Magnetic Resonance Imaging
CAT12	Computational Anatomy Toolbox version 12
FMI	Freiburg Mindfulness Inventory
MAQ	Mindfulness Adherence Questionnaire
B-ADL	Bayer Activities of Daily Living Scale
DHL	Demographic, Health, and Lifestyle questionnaire
WHOQOL-BREF	World Health Organization Quality of Life—Brief Version
WHOQOL-OLD	World Health Organization Quality of Life—Older Adults Version
RRS	Ruminative Response Scale
CAMDEX-R	Cambridge Examination for Mental Disorders of the Elderly—Revised
CAMCOG	Cambridge Cognitive Examination
DAVID	Database for Annotation, Visualization and Integrated Discovery
OMIM	Online Mendelian Inheritance in Man