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Numerous emotional components are related to sexual behavior. If we refer to the psychoevolutionary theory, which emphasizes adaptation, some are based on phylogenetic emotions, (e.g. : acceptance, disgust, joy..) Other emotions are their combinations (e.g. : "love" = "joy+acceptance" ; "aggressiveness" = "anger+anticipation"). We present modern psychological approaches of these processes, particularly the "anxiety", based on cognitive models. Anxiety is the combination of fear and anticipation. Sexual anxiety is a special sub-system in the social anxiety sub-system : biological determinants are effective. These systems or sub-systems can be analyzed through the concept of patterns. Our purpose is the unification of these two models of anxiety related to sexuality. Patterns organize the memory, they are inconscious, built through life events and are the meltling pot of emotional and cognitives processus. We present a cognitive-emotional model of anxiety in the field of sexuality. Secondly we present a test for measuring sexual anxiety. Then, highly or less sexually anxious subjects were confronted with neutral or sexual slides. Results show a positive effect of our practice for more highly sexually anxious subjects. That fact is an indication of the modification of their sexual pattern. Factorial Analysis enables the components of sexual anxiety and the type of modification produced by the exposure practice to be understood.