Who's flying the plane: serotonin levels, aggression and free will

The present paper addresses the philosophical problem raised by current causal neurochemical models of impulsive violence and aggression: to what extent can we hold violent criminal offenders responsible for their conduct if that conduct is the result of deterministic biochemical processes in the brain. This question is currently receiving a great deal of attention among neuroscientists, legal scholars and philosophers. We examine our current knowledge of neuroscience to assess the possible roles of deterministic factors which induce impulsive aggression, and the extent to which this behavior can be controlled by neural conditioning mechanisms. Neural conditioning mechanisms, we suggest, may underlie what we consider the basis of responsible (though not necessarily moral) behavior: the capacity to give and take reasons. The models we first examine are based in part upon the role played by the neurotransmitter, serotonin, in the regulation of violence and aggression. Collectively, these results would appear to argue in favor of the view that low brain serotonin levels induce impulsive aggression which overrides mechanisms related to rational decision making processes. We next present an account of responsibility as based on the capacity to exercise a certain kind of reason-responsive control over one's conduct. The problem with such accounts of responsibility, however, is that they fail to specify a neurobiological realization of such mechanisms of control. We present a neurobiological, and weakly determinist, framework for understanding how persons can exercise guidance control over their conduct. This framework is based upon classical conditioning of neurons in the prefrontal cortex that allow for a decision making mechanism that provides for prefrontal cortical control of the sites in the brain which express aggressive behavior that include the hypothalamus and midbrain periaqueductal gray. The authors support the view that, in many circumstances, neural conditioning mechanisms provide the basis for the control of human aggression in spite of the presence of brain serotonin levels that might otherwise favor the expression of impulsive aggressive behavior. Indeed if those neural conditioning mechanisms underlie the human capacity to exercise control, they may be the neural realization of reason-responsiveness generally.     

In courtroom 7--the Children's Koori Court at work: findings from an evaluation

This article reports some of the findings of an evaluation of the Children's Koori Court (CKC)--the first legislated effort in Australia to involve the Indigenous community in the sentencing of young Aboriginal offenders as a strategy for reducing their overrepresentation in the juvenile justice system. A prominent feature of this court of summary jurisdiction is that the presiding magistrate, while remaining the sentencing authority, is assisted by Aboriginal Elders. This article focuses on the evaluation findings that were derived from observations of the CKC in action. They indicate that the operational objective of cultural responsiveness was realized. They also point to realization of the community-building goal-fostering Indigenous ownership of the administration of the law. Little slippage was found between the CKC's design and operation, although some areas of improvement were identified. Nevertheless, the scope for the CKC by itself to significantly reduce overrepresentation is limited.     

Stipends in Volunteer Civic Service: Inclusion,Retention, and Volunteer Benefits

What is the role of stipends as an institutional facilitator in volunteer civic service? By examining the relationship of stipend receipt to volunteer diversity, time commitment, and perceived benefits from a longitudinal study of older adults serving in Experience Corps, this article assesses stipend status relative to volunteer sociodemographic characteristics, motivations, intensity and duration of time served, and volunteers’ self‐reported benefits. The findings underscore how stipends may promote participant diversity. In particular, stipended older adult volunteers serve for longer periods of time, but their motivations for serving do not differ. Stipended volunteers report higher perceived benefits than nonstipended volunteers. The results suggest that stipends may leverage wider inclusion, increase retention, and contribute to other benefits, but additional research is needed using more controlled and comparative designs.     

Achieving justice for children: public defenders in Israel's juvenile courts

In 1999, public defender (PD) representation of defendants appearing before Israel's juvenile courts began to be phased in. This article reports some of the major findings of a study that examined the impacts of the introduction of PDs. Analysis of interviews with 14 PDs yielded four major themes concerning the impact of the "arrival" of PDs, nature of the court, PDs' role, and PDs' interactions with other court actors. Analysis of interviews with eight prosecutors yielded seven themes concerning the need for PDs, PD as state agent, PDs' role, harms of legalization, disruption of the court, compromising the therapeutic value of the court hearing, and changes in court process. More generally, both PDs and prosecutors placed uncritical store in the value of rehabilitation alternatives. Indeed, the welfare model continues to shape their roles. The findings can largely be explained in terms of Eisenstein and Jacob's courtroom workgroup model.     

Birds of a Feather Fight Together: Status-Enhancing Violence,Social Distance and the Emergence of Homogenous Gangs

Objectives

This study proposes a theoretical framework for understanding two empirical findings from gang research: (1) gangs are generally racially homogenous, even in heterogeneous environments, and (2) gang violence tends to be intra-racial. We draw from the extensive literature on street gangs as well as from research on group formation and status-enhancing behavior to develop a theoretical model of gang formation.

Methods

Using game theory, we model the simultaneous decisions of individuals to commit status-enhancing acts of violence and to seek protection by joining a gang. We then conduct computer simulations to examine the resulting patterns of violence and gang composition.

Results

We demonstrate that as long as some social distance exists between racial groups in a community, gang violence will be intra-racial and gangs will be homogenous. We find that our results are robust to a number of simple variations of the model and allow us to generate several hypotheses about the nature of gang formation and patterns of violence.

Conclusions

When violence is motivated by socially constructed rewards, socially closer targets are likely to yield greater rewards. In such a system, individuals must reduce their likelihood of victimization by entering a social contract of non-violence (i.e. gang membership) with individuals who might view them as status-enhancing targets (i.e. socially close individuals). The result is that gangs are made up of socially close individuals interested in attacking other socially close individuals. Therefore, gangs tend to be racially homogenous and violence is overwhelmingly intra-racial.

     

Abstracts of papers given at the 25th annual conference of the Scottish legal history group

Modern Legal History. A. H. Manchester. London. 1980. Butterworths. xxv and 419 pp (incl. Index). £14.50 cased, £9.75 limp.

Introduction historique au droit. John Gilissen. Brussels. 1979. Emile Bruylant. 756 pp. 2200 Bfr. (2075 Bfr. abroad).

Legal Evolution: The Story of an Idea. Peter Stein. Cambridge. 1980. Cambridge University Press. xi and 131 pp (incl. Index). £15.00 cased.

Judecata Domneasca în Tara Româneasca ?i Moldova (1611–1831) (Princely Justice in Wallachia and Moldavia, 1611–1831) Part I. Judicial Organisation, 1611–1740 by V. A. Georgescu and P. Strihan. Editura Academiei Republicii Socialiste România, Bucharest, 1979, 218 pp. Lei 17.

Bizantul ?i Institutiile Române?ti pîna la Mijlocul Secolului al XVIII lea (Byzantium and Romanian Institutions until the mid‐18th century) by V. A. Georgescu. Editura Academiei Republicii Socialiste Romania, Bucharest, 1979, 296 pp. Lei 22.50.

TUC: The Growth of a Pressure Group 1868–1976. Ross M. Martin. Oxford. 1980. Clarendon Press. xiii and 394 pp (incl. Index). £14.00 cased.     

Book reviews

Martin McCauley and Stephen Carter, eds., Leadership and Succession in the Soviet Union, Eastern Europe and China. Armonk, N.Y.: M.E. Sharpe, 1986. xiii, 256 pp.

Murray Yanowitch, Work in the Soviet Union: Attitudes and Issues. Armonk, New York: M.E. Sharpe, 1985. 196 pp.

Elizbieta Szczepanik, Republiki Azji Sródkowej. Oblicze gospodarczo‐spolteczne. Warszawa: Polska Akademia Nauk, 1983. 310 pp.

David Berger, ed., The Legacy of Jewish Migration: 1881 and Its Impact, Social Science Monographs‐Brooklyn College Press: 1983. 187 pp.

Janka Kupala andJakub Kolas in the West: Bibliography. Vitaut Kipel and Zora Kipel, compilers., New York: Belorussian Institute of Arts and Sciences, 1985. 350 pp.

Borys Lewytzkyj, Politics and Society in Soviet Ukraine, 19531980. Edmonton, Alberta: Canadian Institute of Ukrainian Studies, University of Alberta, 1984. 219 pp.

James E. Mace, Communism and the Dilemmas of National Liberation; National Communism in Soviet Ukraine, 1918–1933. Cambridge, Mass. Distributed by Harvard University Press for the Harvard Ukrainian Research Institute and the Ukrainian Academy of Arts and Sciences in the U.S., 1983. 334 pp.

Taras Hunczak, ed., Ukraine and Poland in Documents, 1918–1920. Parts 1 and 2. New York ‐ Paris ‐ Sydney ‐Toronto: Shevchenko Scientific Society, 1983. 456 pp., 468 pp.

David Saunders, The Ukrainian Impact on Russian Culture; 1750–1850. Edmonton: Canadian Institute of Ukrainian Studies, University of Alberta, 1985. 415 pp.

J[urij] Bojko‐Blochyn, ed., Ukrainische Romantik and Neuromantik vor dent Hintergrund der europäischen Literatur: Symposium der Ludwig‐Maximilians‐Universität München und der Weltvereinigung der ukrainischen Exilschriftsteller, Literaturwissenschaftler und Kritiker “Slovo” am 11. und 12. Januar 1983. Heidelberg: Carl Winter Universitätsverlag, 1985. 152 pp.

Stephan M. Horak, The Soviet Union and Eastern Europe. Littleton, Colorado: Libraries Unlimited, 1985. 373 pp.

Stephan M. Horak, ed., Eastern European National Minorities 1919–1980: A Handbook. Littleton, Colorado: Libraries Unlimited, 1985. 353 pp.

Bela K. Kiraly ed., East Central European Society and War in the Era of Revolutions, 1775–1865. New York: Brooklyn College Press, 1984. 651 pp.

Steven L. Sampson, National Integration through Socialist Planning. Boulder, Colorado: East European Monographs, 1984. 352 pp. Distributed by Columbia University Press, 1984.

The Birth of Solidarity: The Gdansk Negotiations, 1980, translated and introduced by A. Kemp‐Welch. New York: St. Martin's Press, 1983.

Anthony Hyman, Afghanistan Under Soviet Domination, 1964–1983. New York: St. Martin's Press, 1984. 247 pp.

Paul Bödy, Joseph Eötvös and The Modernization of Hungary, 1849–1870. Boulder, Colorado: East European Monographs, CLXXIV, 1985. 134 pp. 2nd revised edition.     

International bounty hunting: From problem to opportunity

Scholars have traditionally argued that Islamist terrorist groups tend to commit higher casualty attacks. Noting that casualty rates of attacks vary widely across Islamist terrorist groups, this study advances an alternative hypothesis that group organizational features and goal structures better explain differing casualty rates than does the overarching ideological type. Using both cross-national analysis and a case study of post-invasion Iraq, I demonstrate that there are two basic types of Islamist terrorist groups whose organizational and goal-structure features explain divergent casualty rates: “strategic groups” that function similarly to secular national-liberation and regime-change movements and “abstract/universal groups” that are affiliated with the global al-Qaeda network.