BrainVoyager QX v2.8

Using Surface Maps for Activation Movies

To make movies showing the (average) response to certain stimuli, one or more surface maps can be used. The easiest way to get a smooth fading-in fading-out movie is to deselect any surface map in state N, turn the respective surface map on for state N+1 and turn all surface maps off for state N+2. When running the resulting movie, activity will gradually build up in the inter-state frames from state N to state N+1 and it will be gradually disappear in the inter-frames from state N+1 to state N+2. Note that you can change the relative speed between the in and out phase by adjusting the number of frames respectively. You may also keep the animation on for an extended period of time by having two successive states in the "on" state.

In some cases, a long series of surface maps may be available. An interesting case are dynamic inverse solutions obtained in the context of the EMEG Suite. Such series of surface maps can be quickly converted into an activation movie by clicking the Add button in the Add available SMPs as activation states field.