Alle Publikationen
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2017
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(2017): Antioxidant allocation modulates sperm quality across changing social environments. In: PLoS one 12 (5). DOI: 10.1371/journal.pone.0176385
DOI: http://www.ncbi.nlm.nih.gov/pubmed/28472052 Abstract: In promiscuous species, male reproductive success depends on their ability to mate with fertile females and on the fertilizing ability of their sperm. In such species, theory predicts that, owing to a trade-off between pre- and post-copulatory reproductive traits, males with lesser access to females should increase resource investment into those sperm traits that enhance fertilization success-usually referred to as ejaculate quality. This prediction has been validated in several taxa, yet studies on the physiological mechanisms modulating ejaculate quality are lacking. Sperm cells are highly vulnerable to oxidative stress, which impairs male fertility. Therefore, males that better protect their sperm from oxidative stress are expected to achieve higher ejaculate quality. Based on theoretical expectations, and since social dominance is a major determinant of mating opportunity, we predicted that subordinate males should invest more into the antioxidant protection of their sperm in order to achieve higher ejaculate quality. We maintained 60 male and 60 female wild-caught house sparrows Passer domesticus in outdoor aviaries, where we experimentally manipulated male social status to test our predictions. We measured cellular oxidative stress and enzymatic antioxidant activity in blood and sperm both before and after manipulating social ranks. Before manipulating the social status, we found that ejaculate viability correlated with oxidative stress level in sperm, with dominant males producing more oxidized and less viable ejaculates. Further, males at the lower end of the hierarchy produced ejaculates of similar quality to those of dominant males, suggesting that restricted access to resources might limit male reproductive strategies. After experimentally manipulating the social status, males matched their ejaculate quality to their new rank, while increases in antioxidant investment into ejaculates paralleled increases in ejaculate viability. Oxidative stress has been proposed as a general constraint to the evolution of life histories. Our results highlight oxidative stress and strategic antioxidant allocation as important proximate physiological mechanisms underlying male reproductive strategies.
2016
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(2016): Smell in Polish. Lexical Semantics and Cultural Values. In: JOURNAL OF SLAVIC LINGUISTICS 24 (2), S. 273-299
Abstract: Verbs of perception have been typically classified into three semantic groups. Gisborne (2010) calls the three categories agentive (listen class), experiencer (hear class), and percept (sound class). Examples pertaining to the sense of smell in English use the same lexical item (smell), while in Polish, the three senses of smell are expressed with different verbs: wąchać (agentive), czuć zapach (experiencer), and pachnieć (percept). In metaphorical extensions of the verbs of sensory perception these verbs often stand for mental states, as meaning shifts typically involve the transfer from concrete to abstract domains. I show that the metaphorical extensions of pachnieć and percept to smell are quite different. Not only does pachnieć not suggest bad character or dislikeable characteristics, it actually conveys the opposite, as in the expression coś komuś pachnie ‘something is attractive to someone’ or when used without a modifier. These differences stem from the positive meaning of pachnieć and the negative meaning of to smell. Since the percept verbs of smell seem to be intrinsically positively or negatively valued, they do not lend themselves to universal Mind-as-Body extensions. I also consider some of the dramatic frequency contrasts between Polish and English smell constructions and show they can have their root in different cultural scripts underlying modes of speaking (pachnieć jak vs. smell like), framing of experiences (czuć zapach vs. experiencer to smell), polysemy, and different constructional capabilities (wąchać vs. to sniff).
Keywords: Agent, Agentive, Biologische Marker, Disziplin, Erlebender, Experiencer, frame semantics, Geräuschhören, Gisborne, Hear, Hören, Kultur, Kulturdifferenz, Kulturspezifizität, Kulturtheorie, Kulturvergleich, Linguistik, Listen, Percept, Perzept, Riechen, schnüffeln, Semantik, Semantische Gruppen, Smell, Smell like, Sniff, sound, Sprachgebrauch, Sprachverstehen, Status, Verben, Wahrnehmung, Wahrnehmung und Sprache, Wahrnehmungsverben, Zuhören -
(2016): The Social Etiquette of Sleep. Some Sociological Reflections and Observations. In: Sociology 41 (2), S. 313-328. DOI: 10.1177/0038038507074977
Abstract: This article provides a critical examination of the seemingly counter-intuitive sociological notion of the 'social etiquette of sleep': the socially appropriate and inappropriate, prescriptive and proscriptive, ways of 'doing' sleeping, that is to say, in, everyday/night life. The first part of the article provides a brief discussion of the rationale for a sociological engagement with sleep. The remaining sections then proceed to a detailed sociological account of the 'civilizing' of sleep, the social uses and abuses of sleep, the socially attentive sleeper, the inconsiderate or selfish sleeper, and the anarchic, anomic, deviant or stigmatized sleeper. The article closes with some further sociological reflections on these dormative/normative matters, A sociological engagement with sleep, it concludes, is far from a contradiction in terms.
Keywords: Biologische Marker, Disziplin, Etikette, Etiquette, Schlaf, Soziale Angemessenheit, Soziologie 2015
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(2015): Intersectionality, Critical Race Theory, and the Primacy of Racism. In: Qualitative Inquiry 21 (3), S. 277-287. DOI: 10.1177/1077800414557827
Abstract: The article explores the utility of intersectionality as an aspect of critical race theory (CRT) in education. Drawing on research with Black middle-class parents in England, the article explores the intersecting roles of race, class, and gender in the construction and deployment of dis/ability in education. The author concludes that intersectionality is a vital aspect of understanding race inequity but that racism retains a primacy for critical race scholars in three key ways: namely, empirical primacy (as a central axis of oppression in the everyday reality of schools), personal/autobiographical primacy (as a vital component in how critical race scholars view themselves and their experience of the world), and political primacy (as a point of group coherence and activism).
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(2015): Datafied Life. In: Techné: Research in Philosophy and Technology 19 (2), S. 191-210. DOI: 10.5840/techne20159935
Abstract: Techno-Anthropology recognizes the intertwining of technology with aims, needs, practices, and skills; ‘the techno’ and ‘the anthro’ are not only interconnected, but historically co-constituted. In this paper developments in ‘personal analytics’ are examined with the aim of proposing epistemological and methodological directions for Techno-Anthropological exploration. Personal analytics refers to the field of interactions that surrounds tracking various bodily and mental functions, including the analysis, visualization, and distribution of the data, thereby encompassing people’s involvements with measuring devices and data movements. By discussing findings from a self-tracking study that focused on heart-rate variability measurement, the article opens for scrutiny ways in which personal data can translate people’s selves into a format that is engaging and actionable. This, in turn, enables researchers to witness and critically assess a terrain where bodily and mental capacities, and life itself, are not taken as given, but become part of the processes of everyday sense-making and contestation.
2012
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(2012): The self-promoting playful pen in graphic and literary rhino-caricatures. In: HUMOR-INTERNATIONAL JOURNAL OF HUMOR RESEARCH 25 (2), S. 179-198
Abstract: From ancient times to the present, artists’ and authors’ creative, critical, and diverting pens have caricatured the human nose. Their amusing games express the power of the artistic imagination to turn their subjects into game pieces by (1) poking fun at their sociopolitical status through exaggerating or diminishing the size and shape of their noses; (2) playing upon hilarious, multifaceted links between their noses, phalluses, and the mocking pen; and (3) building canonical play frames that expand the artists’ and authors’ ability to mock the sociopolitical competition for power and influence. Though these games at times transgress the boundaries of decorum, they also underscore graphic and verbal caricaturists’ self-promotional creativity, as they address the many inequalities in actual and fictive worlds.
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(2012): Interplay of oxytocin, vasopressin, and sex hormones in the regulation of social recognition. In: Behavioral neuroscience 126 (1), S. 97-109. DOI: 10.1037/a0026464
DOI: http://www.ncbi.nlm.nih.gov/pubmed/22141469 Abstract: Social Recognition is a fundamental skill that forms the basis of behaviors essential to the proper functioning of pair or group living in most social species. We review here various neurobiological and genetic studies that point to an interplay of oxytocin (OT), arginine-vasopressin (AVP), and the gonadal hormones, estrogens and testosterone, in the mediation of social recognition. Results of a number of studies have shown that OT and its actions at the medial amygdala seem to be essential for social recognition in both sexes. Estrogens facilitate social recognition, possibly by regulating OT production in the hypothalamus and the OT receptors at the medial amygdala. Estrogens also affect social recognition on a rapid time scale, likely through nongenomic actions. The mechanisms of these rapid effects are currently unknown but available evidence points at the hippocampus as the possible site of action. Male rodents seem to be more dependent on AVP acting at the level of the lateral septum for social recognition than female rodents. Results of various studies suggest that testosterone and its metabolites (including estradiol) influence social recognition in males primarily through the AVP V1a receptor. Overall, it appears that gonadal hormone modulation of OT and AVP regulates and fine tunes social recognition and those behaviors that depend upon it (e.g., social bonds, social hierarchies) in a sex specific manner. This points at an important role for these neuroendocrine systems in the regulation of the sex differences that are evident in social behavior and of sociality as a whole.
Keywords: Amygdala, Animals, behaviour, Biologische Marker, Erinnerung, Erkennen von Personen und Situationen, Female, Gonadal Steroid Hormones, hierarchy, Hormone, Hormonhaushalt, Male, Metabolism, Neurobiologie, Neuroscientific social cognition, Oxytocin, physiology, RECOGNITION, Social Behavior, Social recognition, Sozialpsychologie, Status, Vasopressins, Wiedererkennen 2008
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(2008): Sexual coercion and the misperception of sexual intent. In: Clinical psychology review 28 (1), S. 48-66. DOI: 10.1016/j.cpr.2007.03.002
DOI: http://www.ncbi.nlm.nih.gov/pubmed/17462798 Abstract: Misperceiving a woman's platonic interest as sexual interest has been implicated in a sexual bargaining process that leads to sexual coercion. This paper provides a comprehensive review of sexual misperception, including gender differences in perception of women's sexual intent, the relationship between sexual coercion and misperception, and situational factors that increase the risk that sexual misperception will occur. Compared to women, men consistently perceive a greater degree of sexual intent in women's behavior. However, there is evidence to suggest that this gender effect may be driven largely by a sub-group of men who are particularly prone to perceive sexual intent in women's behavior, such as sexually coercive men and men who endorse sex-role stereotypes. Situational factors, such as alcohol use by the man or woman, provocative clothing, and dating behaviors (e.g., initiating the date or making eye contact), are all associated with increased estimates of women's sexual interest. We also critique the current measurement strategies and introduce a model of perception that more closely maps on to important theoretical questions in this area. A clearer understanding of sexual perception errors and the etiology of these errors may serve to guide sexual-assault prevention programs toward more effective strategies.
Keywords: Alcohol Drinking, Biologische Marker, Coercion, Control, degree of acquaintance, eye-contact, Female, Gender Identity, Gestik, Humans, Individuality, Intention, Interpersonal Relations, Male, Mimik, MODELS, Numerical Data, Perceptual Distortion, Postkasten, Prevention, Psychological, Psychologie, PSYCHOLOGY, Rape, Sex Factors, Sexual Behaviour, Social Perception, Statistics, Status, SV 1998
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(1998): Smiles, Speech, and Body Posture. How Women and Men Display Sociometric Status and Power. In: Journal of Nonverbal Behavior 22 (4), S. 209-228. DOI: 10.1023/A:1022967721884
DOI: https://doi.org/10.1023/A:1022967721884 Abstract: This study found that power and status have different effects on nonverbal behavior. Participants lived together for a term in ten member groups (50 women, 29 men) and rated their housemates on characteristics related to power (toughness and leadership) and sociometric status (popularity and being well-known). Smiling, arm and leg position, and total talking time were recorded in group discussions, one with housemates only and one with strangers included. Power, but not sociometric status, was associated with open-body postures in women and with frequency of talking in women and men. Smiling was unrelated to power and was positively correlated with sociometric status. Male body posture was more open, but women and men did not differ in frequency of talking or smiling.
Keywords: Antworten im Rahmen einer Konversation, Anwesenheit nur von Bekannten/Freunden vs. Anwesenheit von Fremden, Biologische Marker, Dauer, Häufigkeit, Menge des Sprechens eines Konversationspartners, Gender, Gestik, Konversationsanalyse, Körperhaltung, Korrespondenz, Kultureller Kontext, Lächeln, Offenheit vs. Geschlossenheit der Körperhaötung, Öffentlicher vs. privater Raum, (Position der) Extremitäten, Sozialer Raum, Sprachgebrauch, Sprechzeit, Status, Turn-taking innerhalb der Konsersation 1992
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(1992): Training of social competence - Inidividual case analysis of behavior and urine cortisol-levels. In: ZEITSCHRIFT FUR KLINISCHE PSYCHOLOGIE PSYCHIATRIE UND PSYCHOTHERAPIE 40 (2), S. 179-194
Abstract: The aim of this study is to control the effectiveness of a training in social competence within the framework of a stationary therapy by means of observable behavior and to regard the course of salivary-serum- and urine cortisol in parallel with expected changes in behavior. The behavior assessment showed, that apart from anxiety and a deficiency in social competence, lack of trust and helplessness were essential variables (symptoms). Against the theoretical background of contemporary research in trust and helplessness it was tried to find relations between these factors and to show up relevance for therapy in the case in point. Guided by hypotheses the effects of training and therapy are verified by systematic observation of behavior as well as a significant change of the salivary cortisol values. The development of the therapy and the graphic similarity between the sequence of urine cortisol and the formalised Wortman-Dintzer-Model suggest a corresponding interpretation reservedly. In parallel with Seligman's theories the process could refer to psychophysiological connections between helpless behavior and urine cortisol.
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