Tıp fakültesi öğrencilerinin 2P:4P el parmak uzunluk oranları ile kişilik özellikleri arasındaki ilişkinin incelenmesi

Abstract

Recent studies in medical anthropology have revealed that the human body and disease symptoms constantly vary depending on the genetic and sociocultural structure. The physician's personality traits and their variations due to the sociocultural structure are important for the practice of medicine. Prenatal sex hormones are associated with both personality traits and the length ratios (2D:4D) of the index and ring fingers of the hand. In this study, we aimed to investigate the relationship between 2P: 4P ratio depending on sex hormones and positive-negative emotions in preclinical medical students. The height, weight, 2 nd and 4 th finger lengths of both hands and 2D:4D ratios of 493 students (199 males, 294 females) were determined. A questionnaire including the Positive-Negative Emotion Scale (PANAS) and the Five-Factor Personality Inventory Short Form (FFPI-S) with sociodemographic information was applied. The height, weight, body mass index values were significantly higher in men, and 2D:4D ratios were significantly higher in women (p<0.001). Negative correlation between the right hand 2D:4D ratio and Positive and Negative Emotion (r=-0.106, p=0.018; r=-0.087, p=0.052) and positive correlation between the FFPI-S (r=0.090, p=0.045) were determined. 2D:4D ratios of both hands positively correlated with the compatibility (r=0.126, p=0.005, r=0.091, p=0.043). Extraversion score was higher in 3 rd grade students (p=0.006 and p=0.002). Positive personality traits and emotion scores were higher in boys and 3 rd grade students. The awareness created by this study can help the physician to receive a better medical training compatible with their personality traits and to produce more effective treatment process in their expertise.

The relationship of the digit ratio (2D:4D) with body fat distribution and handgrip strength in medical students

“…They reported that the HGS/BMI ratio could be used as a predictive indicator for cognitive performance in schizophrenia 16 . In a study of 493 medical students by Karaoğlu et al a negative correlation was found between the right hand 2D:4D ratio and positive and negative emotions and they reported that there was no significant relationship between the 2D:4D ratio and BMI 23 . In the present study, a weak negative correlation was found between the right 2D:4D ratio and BMI, but we did not found an association between the 2D:4D ratio and BMI groups.…”

Association of 2D:4D finger length ratio of People Working in different professions with personality traits

“…There are many studies investigating differences in physiological, psychological, and behavioral characteristics of individuals according to the 2D–4D finger ratio [ 58 , [60] , [61] , [62] , [63] ]. In their study, Karacaoğlu and Acar reported that prenatal sex hormones were correlated with both personality traits and the length ratios of the index and ring (2D–4D) fingers [ 6 ]. The correlations between finger length ratios and personality traits are higher in females compared to their male counterparts, and males are more active than females in the dimensions of assertiveness, self-esteem, open-mindedness, openness to experience, and thrill-seeking [ 8 , 20 ].…”

“…The levels of sex hormones in the body is associated with the ratio of the second (2D) (index finger) and fourth (4D) (ring finger) fingers. The 2D:4D ratio refers to the ratio of the length of the index finger to the length of the ring finger [ [4] , [5] , [6] , [7] , [8] , [9] ]. During the prenatal period, the hormones estrogen and testosterone promote the growths of the 2nd finger (2D) and the 4th finger (4D), respectively.…”

“…Lippa (2006) measured the hand 2D:4D ratio of 2000 university students and applied the FFPI [ 25 ]. Although studies with finger length ratios (2D:4D) have been carried out on talent and personality in students and athletes [ 6 , [26] , [27] , [28] ], how the 2D:4D ratio is correlated with FFPI and Career Adapt-Abilities Scale has not been revealed separately among professions. The importance of talent and personality in career choice and the lack of the 2D:4D ratio in the current literature have led to an idea for the present study.…”

“…Numerous studies have investigated 2D:4D finger length ratio [ 6 , [32] , [33] , [34] , [35] , [36] , 36 , 37 ] . However, there has been no study in the literature examining the correlation between finger length ratio and FFPI and CAAS of different professions.…”