It is actually not possible.
This impossibility relates to sensory attenuation, namely the reduction in sensitivity of the brain to the sensory consequences of the actions that it has produced. The sensory consequences represent all the changes that the brain can measure via its sensors (vision, touch, sound, muscle elongation ...) and that result from its own action. For instance, someone's own voice sounds very different to him when he hears himself talking than when he hears his own voice from a recording device. Namely, the brain decreases its sensitivity to the voice that it controls in order to preserve its sensitivity to external sounds. This diminished sensitivity is the hallmark of sensory attenuation or sensory cancellation.
As mentioned above, forward models needs to be flexible. This flexibility is highlighted in laboratory settings where movements are artificially manipulated. Visuomotor rotation, prism goggle or force-field perturbation are often used to create a mismatch between the expected and actual sensory consequences of the movement. In visuomotor rotation and prism experiments, the visual feedback of hand motion is distorted. In force-field experiments, the trajectory of the hand itself is perturbed by having the robot deviating away from the target. In every case, the perturbation leads to large errors. These prediction errors elicit the adaptation of the forward model, which will correct the behavior in the next trials. The strength of sensory prediction errors is highlighted in a study by Mazzoni and Krakauer (2006).
As mentioned above, after the introduction of the strategic component of the task, the sensory prediction error is still present. In this case, it indicates that the cursor should move 45 degree clockwise (toward TN in Fig.3) although it is going straight on the target, i.e. despite the strategy, the sensory prediction error remained large. This error will drive adaptation of the forward model and will drive the hand even more clockwise, thereby increasing the errors. This is an illustration of how strongly sensory prediction errors can drive the adaptation of the forward model.
The cerebellum is the locus of the forward model.
Several pieces of evidence support the fact that forward models are computed in the cerebellum. One of them is directly related to the study of Mazzoni and Krakauer. Jordan Taylor and Richard Ivry (Taylor et al. 2010) redid this experiment with cerebellar patients (whose cerebellum is damaged). If the cerebellum supports forward models computation, sensory prediction errors should not drive the adaptation of the forward model and should not worsen the performance on the strategy is revealed. As expected, the authors found that, during phase III (dark blue in Fig.5), the control subjects (open circles) exhibited an increase in error as reported by Mazzoni and Krakauer. In contrast, cerebellar patients did not exhibit such an increase (filled circles).
In summary, forward models play a key role in the prediction of the sensory consequences of our movement and enable us to maximize the perception of our environment thanks to sensory cancellation or to adapt to different contexts or to our changing body. This function appears to be disrupted by damage of the cerebellum.
Blakemore, S.-J., Wolpert, D. M., & Frith, C. (2000). Why can’t you tickle yourself? Neuroreport, 11(11), R11-6.
Webb, B. (2004). Neural mechanisms for prediction: do insects have forward models?. Trends in neurosciences, 27(5), 278-82. doi: 10.1016/j.tins.2004.03.004.
Poulet, J. F. a, & Hedwig, B. (2003). A corollary discharge mechanism modulates central auditory processing in singing crickets. Journal of neurophysiology, 89(3), 1528-40. doi: 10.1152/jn.0846.2002.
Mazzoni, P., & Krakauer, J. W. (2006). An implicit plan overrides an explicit strategy during visuomotor adaptation. The Journal of neuroscience, 26(14), 3642-5. doi: 10.1523/JNEUROSCI.5317-05.2006.
Taylor, J. a, Klemfuss, N. M., & Ivry, R. B. (2010). An Explicit Strategy Prevails When the Cerebellum Fails to Compute Movement Errors. Cerebellum. doi: 10.1007/s12311-010-0201-x.