Major depressive disorder (MDD) is a chronic disease with a prevalence around 8-12% and is considered one of the most debilitating disease worldwide.

A recent orientation is the analysis of language in relation to the description of images with a high and varied semantic and emotional content. It can be studied that changes in the description of an image check if these changes are associated with the evolution of a person with probable impairment both in memory and cognitive as well as emotional, psychiatric, behavioral and even in their interaction with environmental factors especially those associated with socialization and loneliness.

The present study has the objective of validating Accexible as a tool for Screening and Monitoring Depression.

Inclusion Criteria:

• Adult 18-65 years of age.
• Participants must have Spanish as their first language (able to speak and understand verbal messages).
• Participants must have mobile phone with internet.
• Participants must have the ability to understand AcceXible's basic instructions.
• Participants must agree to participate in the study and have voluntarily signed the informed consent.

Exclusion Criteria for patients:

• To have received a diagnosis of neurodegeneration.
• To have significant vision problems that would affect the ability to perceive visual stimuli.
• To have significant hearing problems that would affect the ability to understand verbal cues.
• To be unable to give informed consent to participate in the study.

Cases: adults with suspected depression.

Controls: healthy controls without depression criteria.