Cut-Off Scores of an Olfactory Function Test for Mild Cognitive Impairment and Dementia.

Objective: We aimed to find the optimal cut-off scores for screening of odor detection threshold, odor discrimination, and odor identification tests for detection of mild cognitive impairment (MCI) and dementia in Korean elderly.

Methods: A total of 195 elderly people were divided into three groups: the normal cognition (NC), MCI, and dementia groups. All participants underwent neurocognitive and olfactory function tests.

Personality and Psychological Factors of Problematic Internet Gamers Seeking Hospital Treatment.

Previous studies on internet gaming disorder (IGD) have reported an association between personality traits and impulsive or problematic use of the internet or internet games, but the results obtained were inconsistent. Our study's hypothesis was that personality traits are associated with the individual's choice to play internet games, and psychological status of the individual is associated with seeking treatment for addictive behavior at a hospital. In the current study, individuals who reported excessive internet gaming and visited the hospital for treatment were enrolled and defined as the problematic internet gaming group; through advertisement, additional 138 individuals who were frequent gamers and 139 who were infrequent gamers were recruited.