Table 1.

Strategies used by subjects as reported during the first training session.

Subject	Strategy
1	Upwards: bubbles rising in a glass; downwards: snow falling (blizzard); other two directions: city lights viewed from an airplane
2	Downwards: rain; no other specific strategy
3	Up/down: tetris game; left/right: tennis match
4	Rain/bubbles while visualizing the aperture to have a guidance for the imagery
5	Swimming tadpoles
6	No particular strategy
7	No particular strategy
8	Focus on the dot pattern; no other particular strategy
9	Upwards: bubbles rising in a glass; downwards: snow falling; left/right: buffalo herd running
10	Try to keep the almost faded out dots in mind
11	Try to keep the almost faded out dots in mind
12	Upwards: water hose; downward: rain