Tras el loro y el jabalí, proseguimos con nuestra serie No me puedo creer que lo hayan publicado. Todos los hallazgos que se van a presentar a continuación tienen origen en compañeros de trabajo con un gusto un tanto excéntrico a la hora de realizar sus búsquedas en PubMed (y yo que me alegro). Aunque el primer artículo sigue la línea de los dos que ya publiqué en entradas anteriores, los siguientes se adentran en un mundo un tanto más sórdido. Avisados quedan.

Effect of different types of textiles on sexual activity. Experimental study.

The effect of wearing different types of textiles on sexual activity was studied in 75 rats which were divided into five equal groups: four test groups and one control. Each of the four test groups were dressed in one type of textile pants made of either 100% polyester, 50/50% polyester/cotton mix, 100% cotton or 100% wool. Sexual behaviour was assessed before and after 6 and 12 months of wearing the pants and 6 months after their removal. The rate of intromission to mounting (I/M) was determined. The electrostatic potentials generated on penis and scrotum were also measured by electrostatic kilovoltameter. At 6 and 12 months of wearing the polyester and polyester-cotton mix pants, the I/M ratio was significantly reduced compared to the pre-test levels and the controls (p < 0.0001). The reduction was more manifest in the polyester than in the polyester-cotton mix group, and at the 12th month than at the 6th month of examination. The I/M ratio of the cotton and wool groups showed insignificant changes (p > 0.05) at the 6th month of the study and a significant increase at the 12th month (p < 0.01). Six months after removal of the pants, the I/M ratio returned to the pre-test levels (p > 0.05) in the four groups. The polyester-containing pants generated electrostatic potentials while the other textiles did not. These potentials seem to induce ‘electrostatic fields’ in the intrapenile structures, which could explain the decrease in the rats’ sexual activity.

Ha llegado a mis oídos que existe un estudio similar con humanos (existe o está en proceso, no lo recuerdo con claridad). Si llega a mis manos, no duden de que lo publicaré ipso facto. Dejen de mirarse la etiqueta de la ropa interior, que todavía hay más.

The relationship between serial sexual murder and autoerotic asphyxiation.

This case series documents and examines the association between autoerotic asphyxiation, sadomasochism, and serial sexual murderers. Autoerotic asphyxiation, along with other paraphilias found in this population, is reviewed. Five cases of serial sexual killers who engaged in autoerotic asphyxiation were identified worldwide: four from the United States and one from Russia. Case reports for each are provided. All (100%) were found to have sexual sadism in addition to autoerotic asphyxiation. Furthermore, two (40%) had bondage fetishism, and two (40%) had transvestic fetishism, consistent with these paraphilias co-occurring in those with autoerotic asphyxiation. Overall the group averaged 4.0 lifetime paraphilias. Some possible relationships were observed between the offenders’ paraphilic orientation and their modus operandi, e.g., all of these serial killers strangled victims-suggesting an association between their sadistic and asphyxiative paraphilic interests. The overlap of seemingly polar opposite paraphilias in this sample–sexual sadism and autoerotic asphyxiation–is explored from a historical and clinical perspective. Multiple commonalities shared between these five offenders and serial sexual murderers in general are addressed. A primary limitation of this study is its small sample size and empirical basis; the results may not be generalizable beyond the sample. The findings from this study support the supposition that crime scene behaviors often reflect paraphilic disturbances in those who commit serial sexual homicides.

Y la joya de la corona; ríanse ustedes del caso Fritzl: Digital imaging of the dissection and sexual abuse of a corpse – an exceptional case of necrophilia.

Regular necrophilia refers to the sexually motivated abuse of corpses and is not considered as severe crime in many western countries. However, the risk of “switching” to necrophilic homicides, i.e., committing a homicide to obtain a dead body, has to be assessed by forensic experts. We present a case of semi-professional dissection, preservation and sexual abuse of the body and body parts of a 14-year-old girl. Every step was documented by the offender on thousands of digital images thus allowing an exact reconstruction of necrophilic acts and fantasies. Three months after the disappearance of the body the remains could be recovered and linked to the deceased by pathological examination and DNA analysis. The offender had excessively used the internet for downloading files with sadistic and necrophilic contents including autopsy instructions. The psychiatric examination of the socially integrated and married patient revealed a severe personality disorder. Two other, previously unsolved cases could be attributed to him showing a clear progression of fantasies and acts.

En próximas entregas, más sobre el maravilloso mundo de la ciencia. Permanezcan atentos a sus pantallas y no diseccionen a nadie mientras tanto.

8 comentarios

  1. Alfonso Armenta (#1) dice:

    Cómo me gusta desayunar con artículos de ciencia! Muchas gracias :)

  2. Txapulín (#2) dice:

    La pregunta del millón es, especialmente en los dos primeros casos: ¿Quién financia eso?

    El tercero es el simple estudio de un caso forense, siempre interesante y se puede sacar mucha pasta si lo compra un guionista de CSI. ;)

  3. Maduixa (#3) dice:

    adivinen dónde se realizó el segundo estudio:
    “[...]were identified WORLWIDE: four from the United States and one from Russia[...]”
    :-P

  4. yaki (#4) dice:

    http://es.wikipedia.org/wiki/Premios_Ig_Nobel
    http://es.wikipedia.org/wiki/Premios_Darwin

    También los estúpidos tienen derecho a premio. O no.

  5. yaki (#5) dice:

    Puede echar un vistazo en la wikipedia, donde pone premios ignobel o premios darwin.

    También los estúpidos tienen derecho a premio, que se esfuerzan mucho. O no.

  6. Chuso (#6) dice:

    Hola!!
    Los casos que podéis ver todos los días en las Noticias de Madri+d y FECIT no son tan sensuales pero sí tan peregrinos y de nuestra tierra. Para muestra este botón de hoy:
    Matemáticos logran contar los aullidos de los lobos
    Un equipo de matemáticos de la Universidad de Oviedo (Asturias) ha desarrollado un procedimiento para poder contar los aullidos individuales de los lobos a partir de las grabaciones de los coros de la manada, según publican en la revista Signal Processing. La técnica se basa en herramientas matemáticas de tratamiento de la señal, y según sus creadores, puede ayudar al estudio de las poblaciones de estos cánidos.

  7. TheEfrit (#7) dice:

    Diablos, diablos… Rinze… ¿y no hay fotos de las ratas vestidas del primer experimento? Lo mejor es que ese estudio está hecho en Egipto, país donde te pueden encarcelar por ser gay… pero no por vestir a ratas y ver cómo se lo montan. Curioso.

    Por cierto, este mismo departamento ya hizo el estudio en hombres. Y no te pierdas las maravillas que investiga el tal Shafik A.

  8. Txapulín (#8) dice:

    #7 Juas, juas, juas, y son sólo dos apellidos y muchos nombres, los investigadores deben de ser todos primos y hermanos. Dan miedo:

    “Percutaneous perineal electrostimulation induces erection: clinical significance in patients with spinal cord injury and erectile dysfunction.”
    “Vaginal response to clitoral stimulation: identification of the clitorovaginal reflex.”
    “The anterolateral abdominal wall muscles during vesical filling and evacuation: electromyographic study.”

    Y así, todos.

    Esta familia ha de estar peor que la de “La matanza de Texas”…

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