The mind mapping and note making part is for longer term memory. That's why you add to it after each activation pass.
What you read or photoread goes into your long memory however it is usually short term consciously unless you 'use' the information.
To help for longer term recall you review the Mind Map regularly. Once a day for a week, then once a week for a month then once a month for six months. Review takes about 3 minutes.
Alex