Monitoring the effect of alcohol intake via facial temperature variations using thermography synchronized with
Nanami Kotani1, Kuniharu Sakurada2, Jiayi Xu2
1Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, 153-8904, Japan. nanami.kotani@star.rcast.u-tokyo.ac.jp.
Abstract:
Accurate assessment of alcohol-induced physiological effects is critical for preventing overconsumption and ensuring safe activities such as driving. While breath alcohol concentration (BrAC) measurement is widely used due to its simplicity, it can be confounded by mouth alcohol effects and provides only momentary data. Building on our previously developed Synchro-thermography technique, which synchronizes infrared thermal imaging with heart rate variability to detect vascular-related skin temperature fluctuations, we applied it to monitor physiological changes induced by alcohol. In an alcohol intervention experiment, we observed that under non-drinking conditions, facial temperature fluctuations strongly synchronized with heartbeats. In contrast, following alcohol consumption, this synchrony markedly weakened within 10-30 minutes, regardless of the presence or absence of flushing responses. These results suggest that dynamic monitoring of temperature-heart rate synchrony offers a sensitive, non-contact indicator of early alcohol effects. Although preliminary, our findings highlight the potential of Synchro-thermography as a practical tool for non-invasive, real-time monitoring of alcohol-induced physiological changes.
Related Concept Videos
01:19Assessing Body Temperature - Temporal Artery
Step 1: Perform hand hygiene and don a fresh pair of gloves to prevent cross-infection and ensure patient safety.
Step 2: Explain the procedure to the patient to establish trust. Clear communication establishes trust with the patient, ensures they understand what to expect, promotes cooperation, and enhances comfort during the procedure.
Step 3: Assess the patient's...
01:13Equipments Used to Measure Body Temperature
Glass-bulb Thermometer:
Glass-bulb thermometers are hollow glass tubes with a bulb tip containing liquid such as ethanol or mercury. Historically, glass bulb mercury thermometers were the standard device to measure body temperature. Today, mercury thermometers are prohibited in many countries due to the hazardous effects of mercury and the risk of exposure if the glass bulb breaks. In general,...
01:14Assessing Body Temperature - Tympanic membrane
Step 1: Begin by practicing good hand hygiene to prevent the transmission of microorganisms.
Step 2: Turn on the thermometer and wait until the ready sign appears on the screen to ensure accurate measurement.
Step 3: Slide the probe cover in place to prevent cross-contamination.
Step 4: Instruct the patient to tilt their head to the side for comfort and check for cerumen...
01:14Assessing Body Temperature - Oral
Step 1:
Start by practicing proper hand hygiene to prevent the spread of microorganisms.
Step 2:
Take the thermometer out of the charging unit, switch it on, and wait for the ready sign.
Step 3:
Gently slide the probe cover until a click is heard. This simple action prevents cross-contamination and ensures the correct placement of the probe cover.
Step 4:
Instruct the patient to open their mouth and place...
01:14Temperature Measurement Sites
Oral: When assessing oral temperature, the thermometer tip should be placed under the tongue in the posterior sublingual pocket. It offers accurate readings and can be...
01:27Assessing Body Temperature - Rectal
Follow these steps for rectal temperature assessment:
Step 1: Perform hand hygiene and don clean gloves to prevent cross-infection.
Step 2: Position the patient in a side-lying position to better visualize the rectal...