How long does skin temperature take to respond to a sudden stimulus?

The response time for skin temperature to react to a sudden stimulus is generally observed to take around 30 seconds. This delay is attributed to the physiological processes involved in thermoregulation, where the body needs time to adjust and redistribute blood flow, which ultimately affects skin temperature. This process involves the interaction of the nervous system and vascular responses, which can take a bit of time to manifest after the initial stimulus. The 30-second timeframe allows for accurate measurements to reflect the changes that occur in the skin surface temperature due to external factors, ensuring that any biofeedback or analysis done in this area accounts for a true physiological change rather than an immediate, transient response which might occur in a shorter time frame.