Abstract
Because there appears to be a general propensity among many people to have a consistency in the sidedness of their lateral preferences, the purpose of the present study was to determine if this consistency extends to the airflow through the individual nostrils as well. To test for this, hot wire anemometers measured the airflow in each nostril at 15‐minute intervals for 6 continuous hours in 11 right‐handed and 9 left‐handed adult males. Participants also provided self‐reports of which nostril appeared to have the greater airflow. The airflow measurements supported the hypothesis of a handedness by nostril interaction, in that left‐handers more often experienced greater airflow in their left nostrils whereas right‐handers showed the opposite pattern. Self‐reports were not an especially reliable measure of nasal patency. In most subjects the same nostril was not always the more open one. This left/right shifting of the more patent nostril is termed the nasal cycle. This study also provides the first data comparing the nasal cycle patterns of left‐handers and right‐handers.
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