▁consistent ▁with ▁the ▁hypothesis ▁that ▁gen ital ▁response ▁to ▁both ▁sexual ▁relev ance ▁and ▁appeal ▁allows ▁for ▁a ▁stronger ▁ere ct ile ▁function ▁than ▁response ▁only ▁to ▁appeal ▁and ▁that ▁a ▁majority ▁of ▁the ▁male ▁population ▁are ▁ash amed ▁of ▁their ▁responses ▁to ▁un appe aling ▁stim uli , ▁account ing ▁for ▁the ▁dis cre p ancy ▁between ▁the ▁report ▁from ▁most ▁heter osex ual ▁cou ples ▁that ▁male ▁ere ction ▁is ▁faster ▁than ▁female ▁lub ric ation ▁and ▁the ▁appearance ▁on ▁p let ys m ography ▁volunte ers ▁that ▁female ▁lub ric ation ▁is ▁at ▁least ▁as ▁fast ▁as ▁male ▁ere ction . ▁They ▁also ▁argue ▁that ▁the ▁appearance ▁of ▁a ▁greater ▁individual ▁vari ability ▁in ▁female ▁gen ital ▁response ▁than ▁in ▁male ▁gen ital ▁response ▁is ▁consistent ▁with ▁a ▁representative ▁female ▁sample ▁and ▁a ▁male ▁sample ▁subject ▁to ▁bias ▁that ▁leaves ▁much ▁of ▁the ▁individual ▁vari ability ▁un stud ied , ▁with ▁a ▁reference ▁to ▁the ▁ne uro log ical ▁observation ▁that ▁all ▁brain ▁structures ▁display ▁significant ▁individual ▁vari ability ▁in ▁both ▁sex es ▁and ▁that ▁no ▁brain ▁structure ▁is ▁variable ▁only ▁in ▁females ▁and ▁not ▁in ▁males . ▁ ▁Con cord ance ▁Sex ual ▁ar ous al ▁results ▁in ▁a ▁combination ▁of ▁phys i ological ▁and ▁psych ological ▁factors , ▁like ▁gen ital ▁sexual ▁response ▁and ▁subject ive ▁experience ▁of ▁sexual ▁ar ous al . ▁The ▁degree ▁to ▁which ▁gen ital ▁and ▁subject ive ▁sexual ▁response ▁correspond ▁is ▁term ed ▁conc ord ance . ▁Research ▁has ▁shown ▁a ▁reliable ▁gender