Background: Sexual deviance is regarded as an important risk factor for sexual offending. However, little is known about the development of deviant sexual interests. The transfer of arousal between emotions, i.e., excitation transfer, could attribute sexual salience to stimuli that would otherwise not be sexual in nature. As such, excitation transfer could contribute to the very beginning of unusual or deviant sexual interests. The current protocol proposes a study to investigate to what extent excitation transfer occurs, i.e., to what extent genital and subjective sexual arousal to sexual stimuli is higher in an emotional state than in a neutral state. Following a prior pilot study, several adjustments were made to the study protocol, including a stronger emotional manipulation by using 360-degree film clips and the inclusion of a larger and more sexually diverse sample. Methods: We will recruit 50 adult male volunteers with diverse sexual interests. We will induce sexual arousal in four different emotional states (aggression/dominance, endearment, fear, disgust) and a neutral state. Sexual arousal will be measured genitally using penile plethysmography and subjectively via self-report. Using paired samples t-tests, sexual arousal in the emotional states will be compared with sexual arousal in the neutral state. Discussion: We aim to show that arousal in response to emotional stimuli that are initially nonsexual in nature, can enhance sexual arousal. These findings have potentially important implications for the development of unusual and/or deviant sexual interests and possibly for the treatment of such sexual deviant interests in people who have committed sexual offenses.
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Not much is known about the etiology, or development, of deviant sexual interests. The aim of this systematic review was to provide a broad overview of current theories on the etiology of sexual deviance. We conducted a systematic search of the databases PubMed and APA PsycInfo (EBSCO). Studies were included when they discussed a theory regarding the etiology or development of sexual deviance. Included studies were assessed on quality criteria for good theories. Common etiological themes were extracted using thematic analysis. We included 47 theories explaining sexual deviance in general as well as various specific deviant sexual interests, such as pedophilia and sadism/masochism. Few theories (k = 7) were of acceptable quality as suggested by our systematic assessment of quality criteria for good theories (QUACGOT). These theories indicated that deviant sexual interests may develop as the result of an interplay of various factors: excitation transfer between emotions and sexual arousal, conditioning, problems with “normative” sexuality, and social learning. Neurobiological findings could not be included as no acceptable quality neurobiological theories could be retrieved. The important roles of excitation transfer and conditioning designate that dynamic, changeable processes take part in the etiology of sexual deviance. These same processes could potentially be deployed to diminish unwanted deviant sexual interests.
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“Teaching is both an art and a science” (Harrison & Coll, 2008 p.1). Good teaching excites students and cultivates their curiosity to learn more than they are asked. But what if students’ blank faces tell you that the teaching did not land, what can you do? Using an analogy or metaphor to explain the principle helps students visualize and comprehend the knowledge of difficult, abstract concepts by making it familiar. The National Academy of Engineers issued a report in 2008 emphasizing the need for design engineers to develop 21st century skills, such as ingenuity and creativity, and to create innovative products and markets. However, designers have a hard time ignoring evident constraints on their concepts during their design process. This is especially difficult for novice designers when attempting to use analogical reasoning (Osborn, 1963; Hey et al. 2008). Hey et al. explains how the multitude of design considerations is even more difficult for novice as compared to expert designers who are more able to focus on the important features of a problem. Kolodner (1997) iterates how novice designers have difficulty sifting through the mass of information they encounter. They need help with the transfer of knowledge that analogical reasoning requires. When students can clearly extract and articulate what they have learned, this helps them to internalize this. Biomimicry education teaches the clear extraction and articulation while learning to decipher and transfer function analogies from biology to design. This transfer can also improve reasoning when solving problems (Wu and Weng, 2013), reacting to the challenge in a more ‘out-of-the-box’ manner (Yang et al. 2015). However, not being able to fully understand this “conceptual leap between biology and design” in an accurate manner, is sited as a key obstacle of this field (Rowland, 2017; Rovalo and McCardle 2019, p. 1). Therefore, didactics on how to teach this analogical leap to overcome the hurdles is essential. There is insufficient research on the effectivity of biomimicry education in design to help establish ‘best practices’. This thesis offers advice to fill this pedagogical gap to find out how to overcome the obstacle of analogical reasoning for novice designers, while practicing biomimicry. The contribution to science is a not earlier tested methodology that leads to a clearer understanding of the translation of biological strategies and mechanisms found in scientific research. This translation from biology to design in visual and textual manner, is called the Abstracted Design Principle (ADP) and is introduced and explained in detail in chapters 4, 5 and 6 of this thesis. Together with the proposed instructions, we sketch the net-gain of positive mind-set for novice designers on their path to design for a sustainable future.
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