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Fig. 6. Top left: correlation between REACH trajectories in a baseline condition (without
force field) and trajectories of the force field condition, plotted against trial number. Top
right: mean absolute error measured as euclidean distance between hand position and
target position, plotted against trial number. Bottom: total path length plotted against
trial number. Each colour represents a different experimental run. (Color figure online)
Table 1. Details of the linear fits to individual experimental run shown in Fig. 6.
Statistically significant slopes are indicated in bold and with an asterisk (*)
Correlation with Baseline
Slope
Intercept R 2
Std Err
p
Trial 1 5.32e−03
6.07e−01 8.62e−01 1.23e−03 2.28e−02 *
Trial 2 1.61e−02
5.56e−01 8.08e−01 4.52e−03 3.79e−02 *
Trial 3 9.28e−03
5.89e−01 5.95e−01 4.42e−03 1.27e−01
Mean absolute error
Slope
Intercept R 2
Std Err
p
Trial 1 −4.37e−04 2.00e−02 9.40e−01 6.39e−05 6.40e−03 *
Trial 2 −1.95e−04 1.85e−02 7.44e−01 6.60e−05 5.97e−02
Trial 3 −3.73e−04 1.98e−02 8.81e−01 7.89e−05 1.80e−02 *
Path length
Slope
Intercept R 2
Std Err
p
Trial 1 −1.04e−01 1.17e+01 4.84e−01 6.20e−02 1.92e−01
Trial 2 −1.90e−01 1.25e+01 8.83e−01 4.00e−02 1.77e−02 *
Trial 3 −1.30e−01 1.18e+01 5.44e−01 6.87e−02 1.55e−01