EEG Movies
The following movies are part of new methodology based on the art of encephalography, in order to create brain dynamics movies that will allow the simultaneous visualisation of different indices, as well as the identification of synchronisation and de-synchronisation transitions across bands of rabbit data, while presumably the brain is creating knowledge and meaning.
The following EEG Movies visualise the data gathered with an 8x8 array of electrodes on the visual cortex of a rabbit. Movies for each of the 39 runs of experimental data were created with the following measurements included: the analytic amplitudes squared (AA), the absolute instantaneous frequencies (IF) and signal amplitude minus average (SA). Prior band pass filtering and Hilbert transform have been applied to the data of the four frequency bands of Theta, Alpha, Beta and Gamma.
The following EEG Movies visualise the data gathered with an 8x8 array of electrodes on the visual cortex of a rabbit. Movies for each of the 39 runs of experimental data were created with the following measurements included: the analytic amplitudes squared (AA), the absolute instantaneous frequencies (IF) and signal amplitude minus average (SA). Prior band pass filtering and Hilbert transform have been applied to the data of the four frequency bands of Theta, Alpha, Beta and Gamma.
The idea was to produce a set of different three-dimensional perspective displays (3D), as well as a set of plane perspective displays (2D), where large quantities of data are presented simultaneously for visual inspection and study. For this purpose three different types of movie sets were created, which provide different information and complement each other. These displays allow a visual impression of the following: (1) significant brain events across bands (2) significant brain events for each measurement (SA, AA, IF),and (3) the different stages of the cycle of creation of knowledge and meaning. The result is a set of 32 movies that provide insight on different aspects of cognition and learning, and particularly about the hypothesised cycle of creation of knowledge and meaning in the window of 1 second post visual stimuli.
There are three different types of movie sets:
- Type I movies display the 4 different bands (Theta, Alpha, Beta and Gamma) per index with a total of 8 movies. Each movie covers 20 experiments with a duration of 1 minute 23 seconds per experiment, which are played one after the other accumulating to total of 24 minutes per movie.
- Type II movies display the 4 different indices (SA2D, SA3D, Log10 AA2, IF) per band with a total of 8 movies. Each movie covers 20 experiments with a duration of 1 minute 23 seconds per experiment, which are played one after the other accumulating to total of 24 minutes per movie.
- Type III movies display the 39 experiments per index per band with a total of 16 movies, 1 minute 23 seconds each. In Type III Movies the screen is split with the CS- experiments on the left and the CS+ experiments on the right.