An Analysis of Sexual Dimorphism in the Human Face
نویسندگان
چکیده
Human beings can distinguish between a male and a female face without much difficulty. The science of recognizing and differentiating different faces by humans is not completely understood and is still under research. Sexual dimorphism is common in humans and indeed in other species of animals as well. Significant differences between males and females exist in many aspects like size, color, body shapes, and weight. In this research, we characterize and analyze the sexual dimorphism in the human face as a function of age and of face features. Features are grouped into six categories: head, eyes, orbits, nose, lips, and mouth, and ears. We demonstrate that the face of adult males is significantly different from adult females. We also identify the features that significantly contribute to the dimorphism of the face. This provides a basis for gender-based classification of faces.
منابع مشابه
Craniometric Analysis of Nigerian Population
Introduction: The existence of sexual dimorphism in human skeletons especially skull and its medico-legal importance had long been studied [3] [2,1]. This study has investigated the existence of sexual dimorphism in cranial dimensions of Nigerian population. Methods: A total of 100 adult dry skulls, (78 males, 22 females) free from damage and deformity fully ossified from Departments of Ana...
متن کاملSexual dimorphism of Eastern mosquitofish (Gambusia holbrooki Girard, 1859) in Gamasiab River, Kermanshah province
Gambusia holbrooki Girard, 1859 is considered as one of the non-native and invasive species in the inland waters of Iran. This species occurs in most inland basins and aquatic bodies of Iran and has even been found in brackish waters. Extensive adaptations of this species to its different habitats caused numerous changes in its biological characteristics and morphological traits. The present st...
متن کاملSexual Dimorphism in Volume of Precentral Cortex of Human Brain in Normal Subject who are Suffering from Alzheimer and Parkinson-A Stereological and Macroscopical Study
Purpose: This study is designed to determine the sex difference in volume of precentral cortex of left hemisphere in right-handed normal subjects and the right-handed subjects which are suffering from Alzheimer and Parkinson diseases. Materials and Methods: This study was performed on 72 normal human brains (38 males, 34 females), 11 human brains suffering from Alzheimer (4 males, 7 females), ...
متن کاملSexual Dimorphism in Surface Anatomical Parameters of Human Cerebral Cortex in Different Lebes in Normal and Neurodegenerative Subjects: a Stereological and Macroscopical Study
Purpose: This study sought to determine sex differences in surface anatomical parameters (thickness and surface areas) of human cerebral cortex in different lobes of the left hemisphere in normal right-handed subjects and right-handed subjects suffering from Alzheimer and Parkinson's diseases. Materials and Methods: This cross-sectional descriptive study was performed on 72 normal human brains...
متن کاملSexual dimorphism in digit length ratios of the second to fourth digits (2D:4D) in two species of green toads (Pelobates syriacus Boettger, 1889 and Bufo viridis (Laurenti, 1768))
Sexual dimorphism in the ratio of digits length is a morphological feature resulted from the interaction between sex hormones and prenatal Hox genes, the latter is known to control the development of both limbs and genitals. The status of this trend and ratios have been investigated in various animal groups, including humans, other mammals, birds, reptiles, and amphibians. In this study, the bo...
متن کاملEvaluation of sexual dimorphism on the basis of morphometric traits in Talysh toad, Bufo eichwaldi (Litvinchuk, Borkin, Skorinov & Rosanov, 2008), along with the evaluation of the conservation status of the species
The status of sexual dimorphism patterns in human and various animal groups including some mammals, birds, reptiles and amphibians have been studied, however, despite the fact that a growing number of studies were aimed to describe sexual dimorphism patterns in external morphological features such as the proportion of toes in animals, our knowledge of some basic issues, specially in some animal...
متن کامل