This study will train participants (young people and older adults) to do a visual task, and will assess whether this results in changes in behavioral assessments. In some participants, we will be also testing whether MRI measures (cortical thickness, functional connectivity) change with training.

Inclusion criteria:

• Right handed individuals
• Aged 19-89
• In good health as self-reported or visual impairments due to partial vision loss
• Normal or corrected-to-normal vision with contact lenses or visual impairments due to partial vision loss

Exclusion criteria:

• Younger than 18 or older than 89
• Being hearing-impaired
• Not in good health except due to partial vision loss
• Having a previous serious head injury or neurological disorder, or loss of consciousness for more than 2 minutes
• Having hallucinations or delusions
• Having a current or past history of a substance abuse disorder
• Currently taking psychoactive medications

Computerized training for all groups. This is a pilot study.