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Biomedical subjects

John M Poothullil

Publications and source records attributed to John M Poothullil.

4 recordsLinked to original sources
PubMed2005

Recognition of oral sensory satisfaction and regulation of the volume of intake in humans.

Sensory awareness contributes to the enjoyment of eating and drinking. This study tested the hypothesis that changes in the intensity of oral sensations could be used to regulate the volume of intake. Forty women (< 36 years) volunteered. The participants consumed distilled water, salt water and two concentrations of glucose water under four study conditions. Participants drank until they felt satisfied (basal); satisfied based on taste (taste); satisfied based on fullness (fullness); while watching television (distraction). The treatments were randomized. The study was done in the laboratory between 0830 and 0900. Volume of intake, time taken for intake and thirst intensity variation were measured during each treatment. Analysis of the results showed the taste condition with the lowest volumes and the fullness condition with the highest volumes (p < 0.0001) and time (p < 0.0001). Oral sensory satisfaction could be used to regulate intake of water and water-soluble foods. Sensory distraction may interfere with this regulatory methodology.

Adult↗
PubMed2002

Role of oral sensory signals in determining meal size in lean women.

OBJECTIVES: Cognitive restraint exerts a limiting effect on food intake in lean individuals. Satiation is the process that determines meal size. Oral, gastric, intestinal, and postabsorptive signals might influence this process. I evaluated the roles of oral and gastric signals in determining meal size in lean women. METHODS: Nine women ate cereal when they felt hungry under baseline and three treatment conditions: 1) eating until the pleasantness of the flavor of the cereal subsided, 2) eating until the stomach felt full, and 3) eating while watching television. The study was done in a normal living environment. The amounts of cereal consumed under the four conditions were measured. RESULTS: Cereal consumption was similar to that of baseline when the volunteers relied on oral signals to terminate the act of eating. Cereal consumption was significantly higher than baseline when the volunteers ate until they felt full in the stomach and while watching television (P < 0.0001). CONCLUSIONS: Recognition of oronasal sensory cues while eating could be the mechanism used by some lean women to limit meal size, and this effect can be offset by cognitive distraction.

Adult↗