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Hormonal Mechanisms for Regulation of Aggression in Human Coalitions
Coalitions and alliances are core aspects of human behavior. All societies recognize alliances among communities, usually based in part on kinship and marriage. Aggression between groups is ubiquitous, often deadly, fueled by revenge, and can have devastating effects on general human welfare. Given...
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Published in: | Human nature (Hawthorne, N.Y.) N.Y.), 2012-03, Vol.23 (1), p.68-88 |
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description | Coalitions and alliances are core aspects of human behavior. All societies recognize alliances among communities, usually based in part on kinship and marriage. Aggression between groups is ubiquitous, often deadly, fueled by revenge, and can have devastating effects on general human welfare. Given its significance, it is surprising how little we know about the neurobiological and hormonal mechanisms that underpin human coalitionary behavior. Here we first briefly review a model of human coalitionary behavior based on a process of runaway social selection. We then present several exploratory analyses of neuroendocrine responses to coalitionary social events in a rural Dominican community, with the objective of understanding differences between in-group and out-group competition in adult and adolescent males. Our analyses indicate: (1) adult and adolescent males do not elevate testosterone when they defeat their friends, but they do elevate testosterone when they defeat outsiders; (2) pre-competition testosterone and cortisol levels are negatively associated with strength of coalitionary ties; and (3) adult males usually elevate testosterone when interacting with adult women who are potential mates, but in a striking reversal, they have lower testosterone if the woman is a conjugal partner of a close friend. These naturalistic studies hint that reciprocity, dampening of aggression, and competition among friends and allies may be biologically embedded in unique ways among humans. |
doi_str_mv | 10.1007/s12110-012-9135-y |
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Our analyses indicate: (1) adult and adolescent males do not elevate testosterone when they defeat their friends, but they do elevate testosterone when they defeat outsiders; (2) pre-competition testosterone and cortisol levels are negatively associated with strength of coalitionary ties; and (3) adult males usually elevate testosterone when interacting with adult women who are potential mates, but in a striking reversal, they have lower testosterone if the woman is a conjugal partner of a close friend. 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All societies recognize alliances among communities, usually based in part on kinship and marriage. Aggression between groups is ubiquitous, often deadly, fueled by revenge, and can have devastating effects on general human welfare. Given its significance, it is surprising how little we know about the neurobiological and hormonal mechanisms that underpin human coalitionary behavior. Here we first briefly review a model of human coalitionary behavior based on a process of runaway social selection. We then present several exploratory analyses of neuroendocrine responses to coalitionary social events in a rural Dominican community, with the objective of understanding differences between in-group and out-group competition in adult and adolescent males. Our analyses indicate: (1) adult and adolescent males do not elevate testosterone when they defeat their friends, but they do elevate testosterone when they defeat outsiders; (2) pre-competition testosterone and cortisol levels are negatively associated with strength of coalitionary ties; and (3) adult males usually elevate testosterone when interacting with adult women who are potential mates, but in a striking reversal, they have lower testosterone if the woman is a conjugal partner of a close friend. These naturalistic studies hint that reciprocity, dampening of aggression, and competition among friends and allies may be biologically embedded in unique ways among humans.</description><subject>Adolescent</subject><subject>Adolescents</subject><subject>Adult</subject><subject>Aggression</subject><subject>Aggression - physiology</subject><subject>Aggressiveness</subject><subject>Alliance</subject><subject>Alliances</subject><subject>Analysis</subject><subject>Animals</subject><subject>Anthropology</subject><subject>Behavior</subject><subject>Behavioral biology</subject><subject>Behavioral Sciences</subject><subject>Biological Evolution</subject><subject>Biological Psychology</subject><subject>Child</subject><subject>Coalitions</subject><subject>Competitive Behavior - physiology</subject><subject>Cooperative Behavior</subject><subject>Corticosteroids</subject><subject>Cultural Evolution</subject><subject>Dominica</subject><subject>Dominican Republic</subject><subject>Evolution</subject><subject>Evolutionary biology</subject><subject>Family</subject><subject>Female</subject><subject>Friends</subject><subject>Friendship</subject><subject>Hominidae - psychology</subject><subject>Humans</subject><subject>Hydrocortisone - metabolism</subject><subject>Interpersonal Relations</subject><subject>Male</subject><subject>Males</subject><subject>Middle Aged</subject><subject>Models, Psychological</subject><subject>Neurosecretory Systems - physiology</subject><subject>Pair Bond</subject><subject>Pan troglodytes - psychology</subject><subject>Reciprocity</subject><subject>Regulation</subject><subject>Rural Population</subject><subject>Saliva - chemistry</subject><subject>Social Response</subject><subject>Social Sciences</subject><subject>Sports</subject><subject>Testosterone</subject><subject>Testosterone - metabolism</subject><subject>Testosterone - physiology</subject><subject>Young Adult</subject><issn>1045-6767</issn><issn>1936-4776</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>8BJ</sourceid><sourceid>ALSLI</sourceid><sourceid>BHHNA</sourceid><sourceid>HEHIP</sourceid><sourceid>M2R</sourceid><recordid>eNqFkU1v3CAQhlGUqvlof0AukZVLenEygDFwXG3SbKVUkar2jDALLpENCawP---D5bSVKjXVHJhhnncY8SJ0huEKA_DrjAnGUAMmtcSU1fsDdIwlbeuG8_aw5NCwuuUtP0InOT8CYMYa8R4dEdKUlMtjdLOJaYxBD9VXa37q4POYKxdT9c3206B3PoYqumrV98nmPFc-VJtp1KFaRz34Gcgf0Dunh2w_vp6n6Mfn2-_rTX3_cPdlvbqvTcPZruacdKLrQEjSbB3TThOBoeMUMGelxwyIrhXY6k52WjrRSuOAS6eNMNpqeooul7lPKT5PNu_U6LOxw6CDjVNWUhJBQQIr5Kc3SUzEHJw2_0cxYYTgsmRBL_5CH-OUyuctT7cEgBToaoF6PVjlg4u7pE2JrR29icE6X-5XtKVUENnwIsCLwKSYc7JOPSU_6rRXGNTss1p8VsVnNfus9kVz_rrJ1I12-1vxy9gCkAXIpRV6m_6s-u-pL9Y3sS4</recordid><startdate>20120301</startdate><enddate>20120301</enddate><creator>Flinn, Mark V.</creator><creator>Ponzi, Davide</creator><creator>Muehlenbein, Michael P.</creator><general>Springer US</general><general>Springer</general><general>Springer Nature B.V</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>0-V</scope><scope>3V.</scope><scope>7U4</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>88G</scope><scope>88J</scope><scope>8BJ</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>8G5</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ALSLI</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHHNA</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWI</scope><scope>DWQXO</scope><scope>FQK</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>HCIFZ</scope><scope>HEHIP</scope><scope>JBE</scope><scope>K9.</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M2M</scope><scope>M2O</scope><scope>M2R</scope><scope>M2S</scope><scope>M7P</scope><scope>MBDVC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PSYQQ</scope><scope>Q9U</scope><scope>WZK</scope><scope>7X8</scope></search><sort><creationdate>20120301</creationdate><title>Hormonal Mechanisms for Regulation of Aggression in Human Coalitions</title><author>Flinn, Mark V. ; Ponzi, Davide ; Muehlenbein, Michael P.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c475t-772b8bb08924df5afa2810b73017572b5c08b681eab9ba9f869cf079fac8caea3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Adolescent</topic><topic>Adolescents</topic><topic>Adult</topic><topic>Aggression</topic><topic>Aggression - physiology</topic><topic>Aggressiveness</topic><topic>Alliance</topic><topic>Alliances</topic><topic>Analysis</topic><topic>Animals</topic><topic>Anthropology</topic><topic>Behavior</topic><topic>Behavioral biology</topic><topic>Behavioral Sciences</topic><topic>Biological Evolution</topic><topic>Biological Psychology</topic><topic>Child</topic><topic>Coalitions</topic><topic>Competitive Behavior - physiology</topic><topic>Cooperative Behavior</topic><topic>Corticosteroids</topic><topic>Cultural Evolution</topic><topic>Dominica</topic><topic>Dominican Republic</topic><topic>Evolution</topic><topic>Evolutionary biology</topic><topic>Family</topic><topic>Female</topic><topic>Friends</topic><topic>Friendship</topic><topic>Hominidae - psychology</topic><topic>Humans</topic><topic>Hydrocortisone - metabolism</topic><topic>Interpersonal Relations</topic><topic>Male</topic><topic>Males</topic><topic>Middle Aged</topic><topic>Models, Psychological</topic><topic>Neurosecretory Systems - physiology</topic><topic>Pair Bond</topic><topic>Pan troglodytes - 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Academic</collection><jtitle>Human nature (Hawthorne, N.Y.)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Flinn, Mark V.</au><au>Ponzi, Davide</au><au>Muehlenbein, Michael P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Hormonal Mechanisms for Regulation of Aggression in Human Coalitions</atitle><jtitle>Human nature (Hawthorne, N.Y.)</jtitle><stitle>Hum Nat</stitle><addtitle>Hum Nat</addtitle><date>2012-03-01</date><risdate>2012</risdate><volume>23</volume><issue>1</issue><spage>68</spage><epage>88</epage><pages>68-88</pages><issn>1045-6767</issn><eissn>1936-4776</eissn><coden>HNATER</coden><notes>ObjectType-Article-1</notes><notes>SourceType-Scholarly Journals-1</notes><notes>ObjectType-Feature-2</notes><notes>content type line 23</notes><notes>ObjectType-Article-2</notes><notes>ObjectType-Feature-1</notes><abstract>Coalitions and alliances are core aspects of human behavior. All societies recognize alliances among communities, usually based in part on kinship and marriage. Aggression between groups is ubiquitous, often deadly, fueled by revenge, and can have devastating effects on general human welfare. Given its significance, it is surprising how little we know about the neurobiological and hormonal mechanisms that underpin human coalitionary behavior. Here we first briefly review a model of human coalitionary behavior based on a process of runaway social selection. We then present several exploratory analyses of neuroendocrine responses to coalitionary social events in a rural Dominican community, with the objective of understanding differences between in-group and out-group competition in adult and adolescent males. Our analyses indicate: (1) adult and adolescent males do not elevate testosterone when they defeat their friends, but they do elevate testosterone when they defeat outsiders; (2) pre-competition testosterone and cortisol levels are negatively associated with strength of coalitionary ties; and (3) adult males usually elevate testosterone when interacting with adult women who are potential mates, but in a striking reversal, they have lower testosterone if the woman is a conjugal partner of a close friend. These naturalistic studies hint that reciprocity, dampening of aggression, and competition among friends and allies may be biologically embedded in unique ways among humans.</abstract><cop>Boston</cop><pub>Springer US</pub><pmid>22415579</pmid><doi>10.1007/s12110-012-9135-y</doi><tpages>21</tpages></addata></record> |
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subjects | Adolescent Adolescents Adult Aggression Aggression - physiology Aggressiveness Alliance Alliances Analysis Animals Anthropology Behavior Behavioral biology Behavioral Sciences Biological Evolution Biological Psychology Child Coalitions Competitive Behavior - physiology Cooperative Behavior Corticosteroids Cultural Evolution Dominica Dominican Republic Evolution Evolutionary biology Family Female Friends Friendship Hominidae - psychology Humans Hydrocortisone - metabolism Interpersonal Relations Male Males Middle Aged Models, Psychological Neurosecretory Systems - physiology Pair Bond Pan troglodytes - psychology Reciprocity Regulation Rural Population Saliva - chemistry Social Response Social Sciences Sports Testosterone Testosterone - metabolism Testosterone - physiology Young Adult |
title | Hormonal Mechanisms for Regulation of Aggression in Human Coalitions |
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