Sexual concordance, matching of self-reported sexual orientation & genital response when introduced to erotic stimuli (audio, visual, audiovisual, etc.), is very low for heterosexual cisgender women

The mystery of low sexual concordance among heterosexual cisgender females. Jesse E. Kavieff, Viviana A. Weekes-Shackelford, Zach W. Sundin, Todd K. Shackelford. Human Behavior and Evolution Society 31st annual meeting. Boston 2019. http://tiny.cc/aa1w6y

Abstract: Sexual concordance (SC) refers to matching of self-reported sexual orientation (SO) and genital response when introduced to erotic stimuli (audio, visual, audiovisual, etc.). Men of all SO demonstrate high SC (i.e., near 100%) when exposed to erotic stimuli (Mustanski, Chivers, & Bailey, 2002; Chivers, 2005, 2017; Chivers et. al, 2004; Chivers & Bailey 2005;). Queer cisgender women and transgender women across the SO also match reported sexual orientation to genital response with high SC (Chivers, 2017; Chivers et. al, 2004, 2015; Lawrence et. al, 2005). Cisgender heterosexual Females (CHF), however, show relatively low SC in comparison to cisgender queer, transgender women and men. Furthermore, CHF show slight genital lubrication response to nonhuman mating videos (Chivers, & Bailey, 2005). Genital response and arousal in CHF is marked by vasocongestion in the clitoris and vagina, vaginal pulsation measured by vaginal photoplesmagraph, and by lubrication released from the Skene's and Bartholin's glands. Low SC in CHF is analyzed by both the preparation hypothesis (byproduct hypothesis) and the greater variability in sexual rewards among androphilic women hypothesis (adaptation hypothesis) (Sushinsky & Lalumiere, 2004; Chivers, 2017); more research is required to better understand female sexuality and perhaps discourage misdiagnoses of sexual dysfunction in CHF.

Check also A Life History Approach to the Female Sexual Orientation Spectrum: Evolution, Development, Causal Mechanisms, and Health. Severi Luoto, Indrikis Krams, Markus J. Rantala. Archives of Sexual Behavior, https://www.bipartisanalliance.com/2018/09/feedback-loop-of-environmental.html

And Are Women Sexually Fluid? The Nature of Female Same-Sex Attraction and Its Evolutionary Origins. Menelaos Apostolou. Evolutionary Psychological Science, https://www.bipartisanalliance.com/2017/11/are-women-sexually-fluid-nature-of.html

And The evolution of female same-sex attraction: The male choice hypothesis. Menelaos Apostolou et al. Personality and Individual Differences, Volume 116, 1 October 2017, Pages 372-378, http://www.bipartisanalliance.com/2017/08/the-evolution-of-female-same-sex.html