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Figure 3 | BMC Psychiatry

Figure 3

From: Communication patterns in a psychotherapy following traumatic brain injury: A quantitative case study based on symbolic dynamics

Figure 3

Normalized grammar complexity for each quarter of each therapy session. Normalized complexity is defined on [0,1]. The green line corresponds to Session One, the blue line to Session Two and the red line to Session Three. The complexity values obtained with random numbers (a black line at the top of the graph) and with a constant symbol sequence where one symbol is repeated throughout the message (a black line at the bottom of the graph) are shown for comparison. Data sets of the same size were used in the comparison calculations. The normalized complexity obtained with random numbers is approximately one, and the normalized complexity obtained with a constant signal is approximately zero. Details of the comparison calculations are given in Appendix One.

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