Not Only the Lonely—How Men Explicitly and Implicitly Evaluate the Attractiveness of Sex Robots in Comparison to the Attractiveness of Women, and Personal Characteristics Influencing This Evaluation

While some theories, such as the Media Equation, suggest that men will evaluate sex robots to be attractive, other assumptions (e.g., biases of norm adherence) would contradict this hypothesis. Therefore, the present study aimed at empirically comparing men’s explicit and implicit evaluation of the (sexual) attractiveness of sex robots and women. At the same time, personal characteristics of the observer that might affect this evaluation were considered. An online survey (n = 229) and an affective priming experiment (n = 41) revealed that men rate women to be more attractive than robots if asked explicitly (=self-reported). However, this effect is not present when attractiveness is assessed implicitly (unbiased, directly). Moreover, affiliation-related traits such as loneliness, which have been assumed to be associated with the usage of sex dolls, are not related to the evaluation of attractiveness. Instead, a negative attitude towards robots is an important predictor.

[1]  J. Horn A rationale and test for the number of factors in factor analysis , 1965, Psychometrika.

[2]  T. Remington Lars and the Real Girl , 2011 .

[3]  Astrid M. Rosenthal-von der Pütten Uncannily human: experimental investigation of the uncanny valley phenomenon , 2014 .

[4]  Takayuki Kanda,et al.  My robotic doppelgänger - a critical look at the Uncanny Valley , 2009, RO-MAN 2009 - The 18th IEEE International Symposium on Robot and Human Interactive Communication.

[5]  R. Ward,et al.  A Lack of Sexual Dimorphism in Width-to-Height Ratio in White European Faces Using 2D Photographs, 3D Scans, and Anthropometry , 2012, PloS one.

[6]  Takayuki Kanda,et al.  Is The Uncanny Valley An Uncanny Cliff? , 2007, RO-MAN 2007 - The 16th IEEE International Symposium on Robot and Human Interactive Communication.

[7]  R. Baumeister,et al.  The need to belong: desire for interpersonal attachments as a fundamental human motivation. , 1995, Psychological bulletin.

[8]  Heloir,et al.  The Uncanny Valley , 2019, The Animation Studies Reader.

[9]  H. Reis,et al.  Attraction and close relationships. , 1998 .

[10]  C. Nass,et al.  Machines and Mindlessness , 2000 .

[11]  Francesco Ferrari Too Human To Be a Machine? Social robots, anthropomorphic appearance, and concerns on the negative impact of this technology on humans and their identity. , 2015 .

[12]  Shuzhi Sam Ge,et al.  The Automaticity of Social Behavior towards Robots: The Influence of Cognitive Load on Interpersonal Distance to Approachable versus Less Approachable Robots , 2012, ICSR.

[13]  Jamie E. Bloss The Wiley Blackwell Encyclopedia of Gender and Sexuality Studies , 2017 .

[14]  Gina M. Grimshaw,et al.  Eye-Tracking of Men’s Preferences for Waist-to-Hip Ratio and Breast Size of Women , 2011, Archives of sexual behavior.

[15]  Kathleen Richardson,et al.  The asymmetrical 'relationship' , 2016, SIGCAS Comput. Soc..

[16]  B. Oktay,et al.  Clinical outcome of microsurgery for obstructive azoospermia , 1999, International journal of urology : official journal of the Japanese Urological Association.

[17]  T. Kanda,et al.  Measurement of negative attitudes toward robots , 2006 .

[18]  Christoph Bartneck,et al.  The influence of robot anthropomorphism on the feelings of embarrassment when interacting with robots , 2010, Paladyn J. Behav. Robotics.

[19]  R. Snowden,et al.  Implicit and Explicit Measurements of Sexual Preference in Gay and Heterosexual Men: A Comparison of Priming Techniques and the Implicit Association Task , 2008, Archives of sexual behavior.

[20]  D. Russell,et al.  The revised UCLA Loneliness Scale: concurrent and discriminant validity evidence. , 1980, Journal of personality and social psychology.

[21]  Johannes Oberzaucher,et al.  Evaluation of Human Robot Interaction Factors of a Socially Assistive Robot Together with Older People , 2012, 2012 Sixth International Conference on Complex, Intelligent, and Software Intensive Systems.

[22]  Sherry Joseph Social work practice and men who have sex with men , 2005 .

[23]  L. Kirkendall,et al.  Premarital intercourse and interpersonal relationships : a research study of interpersonal relationships based on case histories of 668 premarital intercourse experiences reported by 200 college level males , 1961 .

[24]  J. Fortenberry,et al.  Vibrator Use Among Heterosexual Men Varies by Partnership Status: Results From a Nationally Representative Study in the United States , 2010, Journal of sex & marital therapy.

[25]  Wendy Ju,et al.  Touching a Mechanical Body : Tactile Contact with Intimate Parts of a Humanoid Robot is Physiologically Arousing , 2016 .

[26]  K. Dautenhahn,et al.  The Negative Attitudes Towards Robots Scale and reactions to robot behaviour in a live Human-Robot Interaction study , 2009 .

[27]  Johannes Hewig,et al.  Gender Differences for Specific Body Regions When Looking at Men and Women , 2008 .

[28]  Matthias Scheutz,et al.  Are we ready for sex robots? , 2016, 2016 11th ACM/IEEE International Conference on Human-Robot Interaction (HRI).

[29]  D. Singh,et al.  Adaptive significance of female physical attractiveness: role of waist-to-hip ratio. , 1993, Journal of personality and social psychology.

[30]  E. Soriano,et al.  Sciencedirect 6 Th International Conference on Intercultural Education " Education and Health: from a Transcultural Perspective " Friends with Benefits and Psychological Wellbeing Selection and Peer-review under Responsibility Of , 2022 .

[31]  Tatsuya Nomura,et al.  Experimental investigation of relationships between anxiety, negative attitudes, and allowable distance of robots , 2007 .

[32]  I. Motofei,et al.  The physiological basis of human sexual arousal: neuroendocrine sexual asymmetry. , 2005, International journal of andrology.

[33]  D. Olson,et al.  Assessing Intimacy: The Pair Inventory† , 1981 .

[34]  M. Worthen Sexual Deviance and Society: A sociological examination , 2016 .

[35]  Friederike Eyssel,et al.  Loneliness makes the heart grow fonder (of robots) — On the effects of loneliness on psychological anthropomorphism , 2013, 2013 8th ACM/IEEE International Conference on Human-Robot Interaction (HRI).

[36]  T. Saxton,et al.  The influence of anthropomorphic tendencies on human hoarding behaviours , 2015 .

[37]  David M. Sanbonmatsu,et al.  On the automatic activation of attitudes. , 1986, Journal of personality and social psychology.

[38]  J. Delamater,et al.  Sexual desire in later life , 2005, Journal of sex research.

[39]  Pedro Avero,et al.  Affective Priming with Pictures of Emotional Scenes: The Role of Perceptual Similarity and Category Relatedness , 2006, The Spanish Journal of Psychology.

[40]  Marvin Minsky,et al.  A framework for representing knowledge , 1974 .

[41]  M. Leary,et al.  Social anxiety, sexual behavior, and contraceptive use. , 1983, Journal of personality and social psychology.

[42]  G. Hole,et al.  The Influence of Feature-Based Information in the Age Processing of Unfamiliar Faces , 1998, Perception.

[43]  Lauren Berlant,et al.  Sex in Public , 1998, Critical Inquiry.

[44]  P. Ekman Facial expression and emotion. , 1993, The American psychologist.

[45]  W. Marelich,et al.  Motivations for Sexual Intimacy: Development of a Needs-Based Sexual Intimacy Scale , 2008 .