DOCSLIB.ORG

Coital Behavior in Dogs

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Coital Behavior in Dogs Journal 0/ Comparative and Physiological Psychology 1968, Vol. 66, No.2, 296-307 COITAL BEHAVIOR IN DOGS: EFFECTS OF ESTROGEN ON MOUNTING BY FEMALESl FRANK A. BEACH, CHARLES M. ROGERS, University of California, Bej·keley Yerkes Regional Primate Research Center, A tlanta , Geoj·gia AND BURNEY J. LEBOEUF Unive1"Sity of California, Santa C7·UZ Female dogs mounted other females more frequently when the 2nd bitch was in estrus, but the hormonal state of the mounting individual had little influence upon mount frequency; estrogen rendered a female more pro­ vocative or stimulating and more cooperative or receptive to mounting by another dog. During heterosexual tests estrous females tended to mount males selectively, responding readily to some masculine partners and never mounting others; in limited tests anestrous females did not mount males. Estrogen facilitated expression of specific feminine copulatory reactions and increased tendencies to display various positive social responses to dogs of · either sex. Whether or not the hormone direcUy enhanced the female's tend­ ency to mount a conspecific partner was not determined. Female mammals of several species sexual receptivity (Young, Dempsey, Hag­ sometimes mount congeners and display quist, & Boling, 1939; Young & Rundlett, elements of the copulatory pattern of con­ 1939). specific males (Beach, 1967). Animal A study of female rats by Beach and husbandrymen report that female ungu­ Rasquin (1942) indicated that there might lates are most likely to mount while they be marked species differences in the hor­ are in estrus, although mounting by an­ monal control of mounting behavior. The estrous females has been observed. The incidence of mounting did not bear any implication that ovarian hormones may be systematic relation to the estrous cycle; involved is strengthened by a report that spayed females mounted as often as intact heifers implanted with pellets of stilbestrol individuals; and administration of estro­ mounted other animals so frequently and gen and progesterone to ovariectomized with such force that 20% of the treated fe­ animals did not increase the frequency males suffered pelvic fractures (Folley & with which they mounted, although it did Malpress, 1944). induce sexual receptivity. At the same time The first systematic studies of mounting it appeared that the hormonal condition in females were those of W. C. Young and of the stimulus female had a definite in­ his associates, who investigated the hor­ fluence upon the mounting responses of her monal control of this behavior in guinea partner. Females mounted other females pigs (Young, Dempsey, & Myers, 1935). In which were in estrus much more often and a series of investigations these workers more vigorously than they mounted dies­ amassed proof that for this species mount­ trous stimulus animals. ing is rare in diestrous females, is con­ The present report is an account of three centrated at the time of estrus, and can be experiments dealing with mounting be­ produced in spayed individuals by ad­ havior in female dogs. The results show ministration of the same combination of that this activity constitutes a complex estrogen and progesterone which induces form of social interaction which may be influenced by a combination of factors in­ 1 This research was supported in part by United cluding both the physiological state of the States Public Health Service Research Grants M-783 and MH-04000 from the National Institute mounting bitch and the stimulus qualities of Mental Health. of the potential mountee. 296 MOUNTING BY FEMALE DOGS 297 EXPERIMENT 1 Although the original purpose of these experi­ ments was to investigate the hormonal correlates This experiment, patterned after the of mounting, it soon became obvious that we were earlier study of rats by Beach and Rasquin not dealing with a simple reflexive response. In­ (1942), was designed to measure the ef­ stead, we were confronted with a complex form of interindividual behavior which could not mean­ fects of induced estrus upon homosexual ingfully be studied in isolation from several closely mounting in bitches which were also tested associated types of interaction. Mounting re­ for copulatory reactions to sexually active sponses appeared in a matrix of acts shown by one males. individual toward a conspecific partner and the entire pattern of social responses had to be ex­ NIethod amined if the presence or absence of mounting was to be understood. For this reason, TecOl·ds Subjects. Ten females and 11 males were pur­ taken during all observation periods included chased as adults from animal dealers. A few were notes on the frequency and timing of all forms of beagles but the majority were mongrels whose social activity. exact age and previous history were unknown. For the purpose of these investigations any be­ Three of the bitches were spayed and seven were havior was defined as "social" if it involved inter­ intact. action between the two Ss under observation. A H oll,sing and maintenance. From the time of "positive" social response was any act by one S their acquisition until the end of the experiment which was clearly oriented to the second S and Ss were housed in individual cages (30 X 31 X 39 which had· the effect of initiating or prolonging in.) in a basement room with forced ventilation nonantagonistic interaction between the members and artificial illumination. of the pair. "Negative" social acts included at­ Once each day for approximately 15 min., Ss tack, threat of attack, flight, and avoidance. These were released in small groups on the floor of the clearly were social in the sense of being oriented colony room while their cages were being cleaned, to another S, but they were classified as negative Except for these brief exercise periods no S had because they tended to prevent or to terminate physical contact with another except during the interaction. The positive social responses (PSR) behavior tests. regularly scored were as follows. (a) Rear mount: Testing and scoring procedures, All females S mounted the mountee from posterior position were observed with males during mating tests con­ with forelegs clasped about the flanks of the ducted while the bitch was in estrus; they also mountee; this is the coital position of the male were tested in homosexual pairs during estrus and during mating. (b) Rear mount with thrusts : anestrus. Estrus was induced by administration of S's hindquarters were moved rhythmically toward estradiol benzoate." Treatment consisted of two and away from the rump or perineal area of the intramuscular inj ections of .38 mg/kg spaced 48 moun tee; when the male copulates, this activity hr. apart. Females became receptive to the male precedes insertion. (c) Head mount : S approached 3-4 days after the second inj ection. Intact indi­ mountee from anterior position and grasps the viduals were injected during their natural period latter's neck or head between the forelegs; this of anestrus and their responses to hormone treat­ may have been accompanied by pelvic thrusting. ment did not differ in any detectable fashion from (d) Side mount: mountee was grasped, with or that of spayed females. without thrusting, from the side. (e) Investiga­ All tests were conducted in a basement room tion: S sniffed or licked the partner's body; the with a floor area of 120 sq. ft. In each hetero­ most frequent target of investigation was the sexual test the male was given a 5-min. period of anogenital area and the second was the head, adaptation before the estrous female was intro­ particularly the ears and mouth; investigation duced. Testing continued until a successful mating could be mutual and simultaneous. (f) Paws on occurred, or until 10-15 min. had elapsed and it body: S placed one or both forepaws on the part­ was apparent that the pair under observation was ner's body; frequently this appeared to be an not going to copulate on that day. In homosexual abortive attempt to mount, but in other instances tests one female was put in the observation room one dog merely lifted a forepaw and struck or 5 min. before introduction of the second S and the brushed against the head, shoulder, back, or rump pair was left together for 10 min. During all tests of the other. (g) Approach: S moved after a pe­ o watched Ss through a one-way vision window riod of separation to within one body length of and dictated into a recorder a running account the second dog. (h) Prance: S faced the head of of the behavior. the partner, flexed the forelegs so that its head was lower than its hindquarters, and either 2 The hormone preparation was generously sup­ "drummed" on the ground with a staccato move­ plied by Schering Corporation, Bloomfield, New ment of the forepaws or "bounced" up and down, Jersey. Subsequent experiments have indicated alternately elevating and lowering the entire body that doses considerably smaller than the one used while maintaining the "head-down-rump-up" pos­ in these studies might have been equally effective ture; in this position the "prancing" individual in inducing sexual receptivity. sometimes jumped laterally from left to right and 298 F. A. BEACH, C. M. ROGERS, AND B. J. LEBOEUF back again, but orientation to the face or head of females were in induced estrus, but two Ss the second dog was continuous; prancing com­ were later bred to males when they were in monly was accompanied by barking directed to­ ward the second animal. (i) Present: S, most often natural estrus and all mounting responses an estrous female, oriented her hindquarters to the were recorded. During tests in induced partner in such a way that her tail region was estrus one S mounted the male in 7% of 27 pointed directly toward the head of the "pre­ tests and the second S mounted in 5% of sentee"; this orienting movement frequently was 20 tests.
Load more

Recommended publications
  • An Approach to the Measurement of Sexual Behavior in the Bull (Bos Taurus) Using Variable Female Stimulus Conditions
    University of Kentucky UKnowledge University of Kentucky Doctoral Dissertations Graduate School 2003 AN APPROACH TO THE MEASUREMENT OF SEXUAL BEHAVIOR IN THE BULL (BOS TAURUS) USING VARIABLE FEMALE STIMULUS CONDITIONS John Denver Bailey University of Kentucky, [email protected] Right click to open a feedback form in a new tab to let us know how this document benefits ou.y Recommended Citation Bailey, John Denver, "AN APPROACH TO THE MEASUREMENT OF SEXUAL BEHAVIOR IN THE BULL (BOS TAURUS) USING VARIABLE FEMALE STIMULUS CONDITIONS" (2003). University of Kentucky Doctoral Dissertations. 239. https://uknowledge.uky.edu/gradschool_diss/239 This Dissertation is brought to you for free and open access by the Graduate School at UKnowledge. It has been accepted for inclusion in University of Kentucky Doctoral Dissertations by an authorized administrator of UKnowledge. For more information, please contact [email protected]. ABSTRACT OF DISSERTATION John Denver Bailey The Graduate School University of Kentucky 2003 AN APPROACH TO THE MEASUREMENT OF SEXUAL BEHAVIOR IN THE BULL (BOS TAURUS) USING VARIABLE FEMALE STIMULUS CONDITIONS _____________________________________ ABSTRACT OF DISSERTATION _____________________________________ A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the College of Agriculture at the University of Kentucky By John Denver Bailey Lexington, Kentucky Director: Keith K. Schillo, Ph.D., Associate Professor of Animal Sciences Lexington, Kentucky 2003 Copyright © John Denver Bailey 2003 ABSTRACT OF DISSERTATION AN APPROACH TO THE MEASUREMENT OF SEXUAL BEHAVIOR IN THE BULL (BOS TAURUS) USING VARIABLE FEMALE STIMULUS CONDITIONS Most researchers studying sexual behavior of the bull have adopted the practice of severely restraining and sedating female stimuli, utilizing so-called “service stanchions” and quantifying behavioral events expressed by each bull.
    [Show full text]
  • Human Sexuality in a World of Diversity, Eighth Edition, by Spencer A
    chapter Sexuality in 13 Childhood and Adolescence in this chapter . ● Infancy (0 to 2 Years): The Search for the Origins ● Adolescence of Human Sexuality ● Puberty The Infant’s Capacity for Sexual Response A CLOSER LOOK: Sexting: Masturbation Of Cellphones, Sex, and Death Sexual Curiosity ● Genital Play Types of Sexual Behaviors in Co-Sleeping Adolescence Sexual Orientation of Masturbation Parents Male–Female Sexual Behavior ● Early Childhood (3 to 8 Male–Male and Female–Female Sexual Behavior Years) ● Masturbation Teenage Pregnancy A CLOSER LOOK: How Should Parents React When A CLOSER LOOK: Do Sexy TV Shows Encourage Sexual Children Masturbate? Behavior in Teenagers and Lead to Teenage Pregnancy? Male–Female Sexual Behavior ● Sexuality in Childhood and Adolescence— Male–Male and Female–Female Sexual Behavior The 3 R’s: Reflect, Recite, and Review Reflect ● Preadolescence (9 to 13 Years) Recite Masturbation Review Male–Female Sexual Behavior Male–Male and Female–Female Sexual Behavior ● Sex Education and Miseducation: More Than ISBN 1-256-42985-6 “Don’t” A CLOSER LOOK: Talking with Your Children about Sex Human Sexuality in a World of Diversity, Eighth edition, by Spencer A. Rathus, Jeffrey S. Nevid, and Lois Fichner-Rathus. Published by Allyn & Bacon. Copyright © 2011 by Pearson Education, Inc. TRUTH or Which of the following statements are the truth, and which are fiction? Look for the Truth-or-Fiction fiction icons on the pages that follow to find the answers. 1 Many boys are born with erections. TF 2 Infants often engage in pelvic thrusting at 8 to 10 months of age. TF 3 Most children learn the facts of life from parents or from school sex-education programs.
    [Show full text]
  • INSTRUMENTAL CONDITIONED REFLEXES with SEXUAL REINFORCEMENT in RATS the Purpose of the Present Work Was to Elaborate a Method Of
    ACTA NEUROBIOL. EXP. 1971, 31: 251-262 INSTRUMENTAL CONDITIONED REFLEXES WITH SEXUAL REINFORCEMENT IN RATS Jozef BECK Department of Mother Welfare, Research Institute of Mother and Child Health, Warsaw 20. Poland The purpose of the present work was to elaborate a method of in- vestigation of the instrumental CRs with sexual reinforcement. The examination of such reflexes in various experimental situations gives more precise information about sexual drive levels than simple observa- tion of sexual behavior. Moreover, this is the only way for obtaining exact data concerning the changes in the drive level in females during the mating behavior. As in natural conditions the intervals between copulations, which can be treated as the indicator of these changes, are imposed by the male. There is a small number of findings concerned with instrumental sexual reflexes (Sheffield et al. 1951, Denniston 1954, Kagan 1955, Beach and Jordan 1956, Bermant 1961, Peirce and Nuttall 1961, Bolles et al. 1968) in comparison to those which concern instrumental alimentary or defensive reflexes. Therefore, a comparison between unconditioned ali- mentary and sexual reflexes seems desirable and scientifically interesting. Both reflexes belong to the group of preservative reflexes (Konorski 1970). While the biological role of the unconditioned alimentary reflex is preservation of individual life, the sexual reflex is responsible for con- tinuation of the life of the species. In both unconditioned reflexes two components are observed: the drive and the consummatory responses. For the unconditioned alimentary reflex the drive is hunger, manifested by behavior directed to reach food and the consummatory reaction is the act of food digesting.
    [Show full text]
  • Influence of Increasing Number of Mating Partners on Mating Behaviour and Reproduction in Brandt’S Voles Jianjun Zhang China Agricultural University
    Central Washington University ScholarWorks@CWU Biology Faculty Scholarship College of the Sciences 2004 Influence of increasing number of mating partners on mating behaviour and reproduction in Brandt’s voles Jianjun Zhang China Agricultural University Zhibin Zhang Lixing Sun Central Washington University, [email protected] Follow this and additional works at: https://digitalcommons.cwu.edu/biology Part of the Biology Commons Recommended Citation Zhang, J., Zhang, Z. & Sun, L. (2004). Influence of increasing number of mating partners on mating behavior and reproduction in Brandt’s voles. Folia Zoologica. 53(4): 357-365. This Article is brought to you for free and open access by the College of the Sciences at ScholarWorks@CWU. It has been accepted for inclusion in Biology Faculty Scholarship by an authorized administrator of ScholarWorks@CWU. For more information, please contact [email protected]. Folia Zool. – 53(4): 357–365 (2004) Influence of increasing number of mating partners on mating behaviour and reproduction in Brandt’s voles Jianjun ZHANG1,2, Zhibin ZHANG1* and Lixing SUN3 1 State Key Laboratory of Pest Management on Insects and Rodents in Agriculture, 25 Beisihuanxi Road, Haidian, Beijing 100080, China; *e-mail:[email protected] 2 Department of Pesticide and Plant Quarantine, College of Agronomy and Biotechnology, China Agricultural University, 2 Yuanmingyuan West Road, Haidian, Beijing 100094, China 3 Department of Biological Sciences, Central Washington University, Ellensburg, WA 98926-7537, USA Received 5 January 2004; Accepted 22 November 2004 A b s t r a c t . The influence of increasing number of mating partners on the copulatory behaviour and reproduction in Brandt’s voles (Microtus brandti) was studied.
    [Show full text]
  • The Development of Socio-Sexual Behavior in Beluga Whales (Delphinapterus Leucas)
    The University of Southern Mississippi The Aquila Digital Community Dissertations Spring 2019 The Development of Socio-sexual Behavior in Beluga Whales (Delphinapterus leucas) Malin K. Lilley University of Southern Mississippi Follow this and additional works at: https://aquila.usm.edu/dissertations Part of the Animal Studies Commons, Biological Psychology Commons, Comparative Psychology Commons, and the Zoology Commons Recommended Citation Lilley, Malin K., "The Development of Socio-sexual Behavior in Beluga Whales (Delphinapterus leucas)" (2019). Dissertations. 1614. https://aquila.usm.edu/dissertations/1614 This Dissertation is brought to you for free and open access by The Aquila Digital Community. It has been accepted for inclusion in Dissertations by an authorized administrator of The Aquila Digital Community. For more information, please contact [email protected]. THE DEVELOPMENT OF SOCIO-SEXUAL BEHAVIOR IN BELUGA WHALES (DELPHINAPTERUS LEUCAS) by Malin Katarina Lilley A Dissertation Submitted to the Graduate School, the College of Education and Human Sciences and the School of Psychology at The University of Southern Mississippi in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy Approved by: Donald Sacco, Committee Chair Lucas Keefer Richard Mohn Heather Hill Deirdre Yeater ____________________ ____________________ ____________________ Dr. Donald Sacco Dr. Joe Olmi Dr. Karen S. Coats Committee Chair Director of School Dean of the Graduate School May 2019 COPYRIGHT BY Malin Katarina Lilley 2019 Published by the Graduate School ABSTRACT The reproductive success of the beluga whale is critical for a species facing extinction in its endangered Cook Inlet, Alaska population. To date, little is known about the mating behavior of these whales in wild populations.
    [Show full text]
  • Developing a Catalog of Socio-Sexual Behaviors of Beluga Whales ( Delphinapterus Leucas ) in the Care of Humans Heather M
    Sacred Heart University DigitalCommons@SHU Psychology Faculty Publications Psychology Department 5-2015 Developing a Catalog of Socio-Sexual Behaviors of Beluga Whales ( Delphinapterus leucas ) in the Care of Humans Heather M. Hill St. Mary's University, Texas, [email protected] Sarah Dietrich University at Buffalo, State University of New York Deirdre Yeater Sacred Heart University, [email protected] Mariyah McKinnon University of Texas at San Antonio Malin Miller St. Mary's University, Texas See next page for additional authors Follow this and additional works at: http://digitalcommons.sacredheart.edu/psych_fac Part of the Animal Sciences Commons, Behavior and Ethology Commons, and the Laboratory and Basic Science Research Commons Recommended Citation Hill, H. M., Dietrich, S., Yeater, D., McKinnon, M., Miller, M., Aibel, S., & Dove, A. (2015). Developing a catalog of socio-sexual behaviors of beluga whales (Delphinapterusu leucas). Animal Behavior and Cognition, 2(2), 105-123. doi: 10.12966/abc.05.01.2015 This Peer-Reviewed Article is brought to you for free and open access by the Psychology Department at DigitalCommons@SHU. It has been accepted for inclusion in Psychology Faculty Publications by an authorized administrator of DigitalCommons@SHU. For more information, please contact [email protected]. Authors Heather M. Hill, Sarah Dietrich, Deirdre Yeater, Mariyah McKinnon, Malin Miller, Steve Aibel, and Al Dove This peer-reviewed article is available at DigitalCommons@SHU: http://digitalcommons.sacredheart.edu/psych_fac/91 Sciknow Publications Ltd. ABC 2015, 2(2):105-123 Animal Behavior and Cognition DOI: 10.12966/abc.05.01.2015 ©Attribution 3.0 Unported (CC BY 3.0) Developing a Catalog of Socio-Sexual Behaviors of Beluga Whales (Delphinapterus leucas) in the Care of Humans Heather M.
    [Show full text]
  • Case Report Bilateral Epididymal Nodules in a Stallion M
    EQUINE VETERINARY EDUCATION / AE / APRIL 2006 85 Case Report Bilateral epididymal nodules in a stallion M. A. POZOR* AND M. GARNCARZ† Department of Animal Reproduction, University of Agriculture, Al. Mickiewicza 24-28, 30-059 Krakow and †Department of Clinical Sciences, School of Veterinary Medicine, University of Agriculture, ul. Nowoursynowska 159c, 02-776 Warsaw, Poland. Keywords: horse; epididymis; granuloma; adenomyosis; stallion; fertility Introduction of the epididymides revealed bilateral nodules in the epididymal bodies. The nodules were located parallel to each Epididymal abnormalities in stallions appear to be rare. other; their consistency was firm, with the left nodule being Pathologies identified include epididymitis, granuloma and slightly larger than the right. In addition, the stallion neoplasia (Blue and McEntee 1985; Held et al. 1989, 1990, exhibited slight signs of pain during palpation of the 1992; Traub-Dargatz et al. 1991; Brinsko et al. 1992). These epididymal nodules. lesions may have a detrimental effect on a stallion’s fertility and treatment is often unsuccessful. Orchidectomy is usually Evaluation of semen performed in order to relieve the symptoms. This report describes a case of a bilateral epididymal adenomyosis Two samples of semen were collected using a Missouri model in a stallion, associated with infertility. artificial vagina and a breeding phantom with a live oestrous mare standing next to the phantom. The stallion showed signs Case details of pain (sudden dismount preceded by a head toss) during each of 4 attempts to collect semen which occurred History consistently after the last pelvic thrust. During the fifth attempt to collect semen, the stallion ejaculated in A 14-year-old stallion (Silesian breed) was rejected from a conjunction with the application of hot compresses on the breeding programme because of fertility problems.
    [Show full text]
  • The Rare Phenomenon of Consecutive Ejaculations in Male Rats
    Brief Report The Rare Phenomenon of Consecutive Ejaculations in Male Rats Joanna M. Mainwaring 1, Angela C. B. Garcia 1, Elaine M. Hull 2 and Erik Wibowo 1,* 1 Department of Anatomy, University of Otago, Dunedin 9016, New Zealand; [email protected] (J.M.M.); [email protected] (A.C.B.G.) 2 Department of Psychology, Florida State University, Tallahassee, FL 32306, USA; [email protected] * Correspondence: [email protected] Abstract: Mounting, intromission and ejaculation are commonly reported sexual behaviours in male rats. In a mating session, they can have several copulatory series with post-ejaculatory intervals in between ejaculations before they reach sexual satiety. Here, we describe a phenomenon where male rats displayed consecutive ejaculations (CE) with a short inter-ejaculatory interval (IEI). Male rats were daily mated with a sexually receptive female rat. Two out of 15 rats displayed CE in one of their mating tests. The first rat had CE at 9.9 and 10.1 min (IEI = 16.3 s) after the start of the test. The second rat showed CE at 28.1 and 28.5 min (IEI = 18.7 s) after the test onset. During the IEI, the rats did not show any mounting or intromission. Keywords: multiple ejaculations; male rodents; male sexual behaviour; multiple orgasms; consum- matory behaviour; refractory period Citation: Mainwaring, J.M.; Garcia, 1. Introduction A.C.B.; Hull, E.M.; Wibowo, E. The Male sexual behaviours in rodents are characterised by three distinct behaviours: Rare Phenomenon of Consecutive mounting, intromission, and ejaculation [1,2].
    [Show full text]
  • Sexual Reward and Depression
    Western University Scholarship@Western Electronic Thesis and Dissertation Repository 10-24-2012 12:00 AM Sexual Reward and Depression Andrea R. Di Sebastiano The University of Western Ontario Supervisor Dr. Lique M. Coolen The University of Western Ontario Graduate Program in Anatomy and Cell Biology A thesis submitted in partial fulfillment of the equirr ements for the degree in Doctor of Philosophy © Andrea R. Di Sebastiano 2012 Follow this and additional works at: https://ir.lib.uwo.ca/etd Part of the Behavioral Neurobiology Commons, Mental Disorders Commons, Molecular and Cellular Neuroscience Commons, and the Neurosciences Commons Recommended Citation Di Sebastiano, Andrea R., "Sexual Reward and Depression" (2012). Electronic Thesis and Dissertation Repository. 926. https://ir.lib.uwo.ca/etd/926 This Dissertation/Thesis is brought to you for free and open access by Scholarship@Western. It has been accepted for inclusion in Electronic Thesis and Dissertation Repository by an authorized administrator of Scholarship@Western. For more information, please contact [email protected]. SEXUAL REWARD AND DEPRESSION (Thesis Format: Integrated Article) By Andrea R. Di Sebastiano Graduate Program in Anatomy and Cell Biology A thesis submitted in partial fulfillment of the requirements for degree of Doctor of Philosophy The School of Graduate and Postdoctoral Studies The University of Western Ontario London, Ontario, Canada © Andrea R. Di Sebastiano, 2012 THE UNIVERSITY OF WESTERN ONTARIO SCHOOL OF GRADUATE AND POSTDOCTORAL STUDIES CERTIFICATE OF EXAMINATION Supervisor Examiners Dr. Lique Coolen Dr. Walter Rushlow Dr. Vania Prado Dr. Martin Kavaliers Dr. Alison Fleming The thesis by Andrea R Di Sebastiano entitled: Sexual Reward and Depression is accepted in partial fulfillment of the requirements for degree of Doctor of Philosophy Date Chair of the Thesis Examination Board ii ABSTRACT Sexual behavior in male rats is a complex rewarding behavior and many neurotransmitters and neuropeptides play an important role in mediation of sexual performance, motivation and reward.
    [Show full text]
  • The Sexual Development of the Common Marmoset
    THE SEXUAL DEVELOPMENT OF THE COMMON MARMOSET MONKEY, CALLITHRIX JACCH(JS JACCH[JS by DAVID HOWARD ABBOTT Thesis submitted for /. the degree of Doctor of Philosophy at the University of Edinburgh March, 1979. To Angela --..'- •A - - - •. ,_-•• - •-- - - -- -- - - --•- • - - •---fl -- - - - • -:: Aj I TABLE OF CONTENTS Page ACKNOWLEDGEMENTS PUBLICATIONS ABSTRACT OF THESIS CHAPTER ONE: INTRODUCTION AND THE REVIEW OF LITERATURE 1 1.1 Introduction 1 1.2 The differentiation of male and female 1 1.2a The internal and external genitalia 1 1.2b The brain mechanisms regulating gonadal function 8 1 .2b(i) Mammals other than primates 8 1 .2b(ii) Primates (including man) 17 .1 .2c The brain centres controlling behaviour 22 1 .2c(i) Mammals other than primates 23 1 .2c(ii) Primates (including man) 31 1.3 The aims and scope of this study 39 CHAPTER TWO: MATERIALS AND METHODS )43 2.1 Animals 46 2.2 Management 46 2.2a Families 146 2.2b Peer groups and pairs 14.7 2.3 Observation room 14.7 2.3a Design 14.7 2.3b Construction 51 2.3c Routine use 51 2.3d Behavioural test conditions 52 24 Behavioural observation of families 52 2.4a Observation room 52 2.4b The observation schedules 52 T&BLE OF CONTENTS ... Cont. 2.4c Identification of animals 55 2.4d Behaviour recorded 55 204d(1) Social play behaviour 56 2.14.d(ii) Sexual behaviour 57 2.4d(ili) Aggressive and submissive behaviour 59 2.5 Behavioural observation of peer groups 59 2.5a Observational cages 59 2.5b Observation schedule 62 2.5c Identification of animals 63 2.5d Behaviour recorded 63 2.6 Behavioural
    [Show full text]
  • Pure Pleasure 30 Manual
    Pure Pleasure 30-min sequence manual ui Love Wrap in Base Position ............................................................................ Pg. 1 Video 0:14 Breast Massage ................................................................................................. Pg. 2 Vulva Massage in Goddess Pose ................................................................... Pg. 2 Video 0:53 Sipping ................................................................................................................. Pg. 3 Video 1:28 Vaginal Pulse & Intention ............................................................................... Pg. 5 Rock-Around-The-Pelvic-Clock ...................................................................... Pg. 5 Video 1:59 Rock’n Roll ........................................................................................................... Pg. 6 Video 3.12 Sufi Grinds .......................................................................................................... Pg. 7 Video 3.40 Pelvic Thrusts ...................................................................................................... Pg. 8 Video 5.05 Hip Swivels ......................................................................................................... Pg. 9 Video 6.00 Relaxation in Sleeping Beauty Pose ............................................................. Pg. 10 Video 6.45 Self-Love Blessing ............................................................................................. Pg. 11 Video 7.20 —————————————————————————
    [Show full text]
  • Cambridge Rocky Horror: a Tale of Silk, Silliness, and Sexual Shenanigans Robert J
    Undergraduate Review Volume 2 Article 11 2006 Cambridge Rocky Horror: A Tale of Silk, Silliness, and Sexual Shenanigans Robert J. Cannata Follow this and additional works at: http://vc.bridgew.edu/undergrad_rev Part of the Creative Writing Commons Recommended Citation Cannata, Robert J. (2006). Cambridge Rocky Horror: A Tale of Silk, Silliness, and Sexual Shenanigans. Undergraduate Review, 2, 43-54. Available at: http://vc.bridgew.edu/undergrad_rev/vol2/iss1/11 This item is available as part of Virtual Commons, the open-access institutional repository of Bridgewater State University, Bridgewater, Massachusetts. Copyright © 2006 Robert J. Cannata Cambridge Rocky Horror: A Tale ofSilk, Silliness, and Sexual Shenanigans BY ROBERT J. CANNATA Rob Cannata has just graduated from pproaching the midnight hour, Harvard Square becomes leaner, Bridgewater with an English degree. though not losing the energy it thrives upon. The shoppers He wrote this piece for Dr. lee Torda's and tourists have scurried home hours ago, leaving fragments Ethnography class. Mr. Cannata would of food wrappers, ATM receipts. and Daisani bottles in their like to remind the public that he only wake. This is still the People's Republic ofCambridge, and on a chilly Saturday in cross-dressed to strengthen the paper, and November the Ivy League proletarians reclaim their boroughs. Outside a cafe, anything Dr. Torda tells you to the contrary Harvard lawyers and MIT programmers in London Fog peacoats huddle around is a boldfaced lie. steaming lattes, waxing political. philosophical, or inane over unused granite chess tables. Police officers patrol with a relaxed. air (this ain't Dorchester, after all), their insignia shining orange in the pale street lamps.
    [Show full text]