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Penile plethysmography (PPG) is considered the most rigorous method for sexual interest assessment. Nevertheless, it is subject to faking attempts by participants, which compromises the internal validity of the instrument. To date, various attempts have been made to limit voluntary control of sexual response during PPG assessments, without satisfactory results. This exploratory research examined eye-tracking technologies' ability to identify the presence of cognitive strategies responsible for erectile inhibition during PPG assessment. Eye movements and penile responses for 20 subjects were recorded while exploring animated human-like computer-generated stimuli in a virtual environment under three distinct viewing conditions: (a) the free visual exploration of a preferred sexual stimulus without erectile inhibition; (b) the viewing of a preferred sexual stimulus with erectile inhibition; and (c) the free visual exploration of a non-preferred sexual stimulus. Results suggest that attempts to control erectile responses generate specific eye-movement variations, characterized by a general deceleration of the exploration process and limited exploration of the erogenous zone. Findings indicate that recording eye movements can provide significant information on the presence of competing covert processes responsible for erectile inhibition. The use of eye-tracking technologies during PPG could therefore lead to improved internal validity of the plethysmographic procedure.

Purpose The purpose of this paper is to document the experience of current and former methamphetamine users on their crystal meth use patterns and on their use of services related to their chemsex practice. Design/methodology/approach For qualitative component, two focus groups were formed with nine current users of methamphetamine and eight former users. Thematic analysis was performed to know their experiences. Findings All participants were already engaging in chemsex with various substances before they first started using methamphetamine. Methamphetamine use led some to slam (methamphetamine or mephedrone injection). Some participants report that their sexual experiences were intensified early in their chemsex practice. They reported feeling more confident with their partners, feeling like they are sexually attractive and overcoming their barriers to sexuality. The intensification of methamphetamine use and, in particular, injection change the positive perception of sexual life. Thus, for some participants, substance use takes more space and their sexual experiences become less satisfactory. Practical implications Participants report the services that address the phenomenon of chemsex are still scarce in Quebec province. In addition, the few services available aim to relearn a sober sexuality. However, the mourning of the positive aspects of chemsex on sexual experiences seems still very little discussed. Greater consideration of positive chemsex experiences is needed in services that address this issue. Originality/value This project documented the perception of pleasure related to sexual practices among regular methamphetamine users. Their perception of pleasure will help develop services adapted to their reality.