What could potentially cause a panelist to lose calibration?

Desensitization is a process where a panelist's sensitivity to certain stimuli decreases over time due to repeated exposure. This can lead to a loss of calibration because the panelist may no longer detect subtle differences in the sensory attributes being evaluated. In a sensory testing environment, maintaining a consistent level of sensitivity is crucial for accurate assessment. If a panelist becomes desensitized, their ability to discern these nuances may diminish, resulting in variations in their responses and compromising the reliability of test results.

In contrast, overtraining, higher motivation levels, and increased experience can enhance a panelist's skills and calibration. While overtraining might lead to fatigue, which can affect performance, the general premise is that proper training and motivation typically contribute positively to a panelist's ability to evaluate sensory attributes effectively. Increased experience also enhances a panelist's capability to identify and describe sensory characteristics accurately, reinforcing their calibration rather than detracting from it.