P a g e | 4the two genders occur due to diversity of personality traits and sexual hormone levels. In a recentstudy of cognitive ability, males out-performed females and a positive relation was observedbetween prenatal 2d4d ratio and mental rotational tasks of the participants irrespective of theirsexual orientations (Barel, E. &Tzischinsky, O.,2017). The research work also studied the intergender and intra gender analysis based on organizational effects of testosterone and estrogen.The results revealed a significant relation between sex and digit ratio of the right hand forvarious kind of recollection tasks. The digit ratio of the right hand is considered more effective than the left hand 2d4d ratio (e.g.Coates, Gurnell, & Rustichini, 2009; Manning, 2002; Manning et al., 2007; Williams et al.,2000) for males and for the females the left hand digit ratio is considered to reflect thepersonality traits. Researchers investigating the phenomenon though choose the right hand ratiothan the left hand ratio for consistency of their study (e.g. Austin, Manning, McInroy, &Mathews, 2002; Coates et al., 2009). Researchers have constantly tried to establish a relationshipof digit score with human behavioral and morphological pattern but the results have beeninconsistent in nature (Manning et al., 2007; Puts, McDaniel, Jordan, & Breedlove, 2008).From the above arguments and findings it was hypothesized that human sex hormones havesignificant relation with cognitive ability and individuality of males and females. The sexhormones affect the pre and post natal physical conditions of both the sex from which the digitratio gets formed[ CITATION Lon11 \l 16393 ]. The correlation between the 2d4d ratio and patternrecognition was hypothesized to be positive. The participant number, the digit ratio 2d4d anddigit_Ratio2d4d_Group were taken as independent variables and the mental rotation score wastaken as dependent variable. The mental scores of the subjects were supposed to be high for the

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