Advances in Social Sciences Research Journal – Vol.5, No.10 Publication Date: Oct. 25, 2018 DoI:10.14738/assrj.510.5207. Ribeiro, M. P., Moreira, D., Coelho, R., Pereira, A., & Almeida, F. (2018). Gender Identity. Advances in Social Sciences Research Journal, 5(10) 10-29. Copyright © Society for Science and Education, United Kingdom 10 Gender Identity Maria Patrícia Ribeiro Magalhães Lemos Hospital Diana Moreira University of Porto Maia University Institute Rui Coelho University of Porto Altamiro Pereira University of Porto Fernando Almeida University of Porto Maia University Institute AUTHOR NOTE Maria Patrícia Ribeiro, Magalhães Lemos Hospital (Portugal). Diana Moreira, Laboratory of Neuropsychophysiology, Faculty of Psychology and Educational Sciences, University of Porto, Social and Behavioral Sciences Department, Maia University Institute, and Portucalense Institute of Neuropsychology and Cognitive and Behavioral Neurosciences (Portugal). Fernando Almeida, Social and Behavioral Sciences Department, Maia University Institute and Instituto de Ciências Biomédicas Abel Salazar, University of Porto (Portugal). The authors do not have financial, personal, or professional conflicts of interests. The study was conducted according to APA ethical standards. The authors would like to express their deepest appreciation to Professor Amílcar Augusto for his held dear input and encouragement. ABSTRACT The aim was to contribute to future research on Gender Identity associated with other domains of human reality, while looking to not forget that, over time, it was an essential topic in Arts and Sciences, reflecting a curiosity to define, interpret, and research “representations” of masculine and feminine roles regarding the “actors” (men or women) of the “acts”, as well as their “spectators” (the other men and women, who are all of us). Currently, there seems to be an intensifying of undifferentiation of the roles assigned to Gender, a kind of androgyny, though without this meaning the existence of internal resonance of this undifferentiation, as if one walked towards a narcissistic society, as if it were mental hermaphroditism. Keywords: gender identity, gender, sex roles, development, systems of observation/analysis