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The impact of body odor on bonding and incest avoidance over the course of life: a developmental and neuropsychological approach

体味对生命过程中的亲密关系和避免乱伦的影响：一种发展和神经心理学方法

基本信息

批准号：
316678213
负责人：
Professorin Dr. Ilona Croy
金额：
--
依托单位：
Deutsche Knochenmarkspenderdatei (DKMS)
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2016
资助国家：
德国
起止时间：
2015-12-31 至 2019-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/316678213?language=en
关键词：
impact body odor bonding incest

项目摘要

The aim of the research project is to create a comprehensive picture of the impact of body odors to bonding and incest prevention over the course of life. It is known that human parent-child bonding and kin recognition are modulated by olfactory stimuli and we hypothesize that this modulation varies as a function of the age of the child. In infants this modulation is assumed foster bonding, in puberty it prevents the child from sexual attraction of their parents. Childrens body odors consist of several compounds that can be divided into highly variable, stable and developmental ones. Stable, genetic compounds are related to human leukocyte antigens (HLA) and developmental ones are related to hormonal changes of the children. We assume that HLA-related compounds initiate kin recognition and enhance reward processing of own infants body odor. However, olfactory genetic similarity may interact with of developmental compounds related to sexual hormones and lead to an unpleasant body odor perception of own pubescent children. The project consists of four studies, which clarify 1) the impact of genetic and hormonal compounds on body odor perception 2) parental reward processing in response to the body odor of infants vs pubescent children and ) the impact of the sense of smell on mother-child bonding. The studies are carried out in healthy participants; a study in patients complements the project. Methods include questionnaires, psychophysical examination and functional magnetic resonance tomography on the parents side. Furthermore hormonal state of the children is assessed and parents and children undergo HLA sequencing. Body odor analysis is planned in order objectify developmental related changes of body odors. We expect that this project sheds new light on the developmental dynamics of family interactions. The results will extend the current knowledge on bonding by including the olfactory channel, which forms an emotional background and serves as a modulator for signals from different modalities. The combination of psychosensory studies with bonding is a new interdisciplinary approach. Inclusion of genetic variables (HLA) on body odor assessment is a novel method and the interaction with hormonal changes makes the project challenging and unique. In result, the project can add new strategies for the prevention of bonding-disorders, caused by preterm birth or postnatal depression for instance.

该研究项目的目的是创造一个全面的图片的影响，身体气味的结合和乱伦预防在生命的过程中。众所周知，人类亲子关系和亲属识别是由嗅觉刺激调制的，我们假设这种调制随儿童年龄的变化而变化。在婴儿这种调制假定寄养的结合，在青春期，它阻止了儿童的性吸引力的父母。儿童的体臭由几种化合物组成，可分为高度可变的，稳定的和发展的。稳定的遗传化合物与人类白细胞抗原（HLA）有关，发育化合物与儿童的激素变化有关。我们假设，HLA相关化合物启动亲属识别，并加强奖励处理自己的婴儿体臭。然而，嗅觉遗传相似性可能与性激素相关的发育化合物相互作用，并导致自己青春期儿童不愉快的体臭感知。该项目由四项研究组成，阐明了1）遗传和激素化合物对体臭感知的影响2）父母对婴儿与青春期儿童体臭的奖励处理以及）嗅觉对母子关系的影响。这些研究是在健康参与者中进行的;对患者的研究补充了该项目。方法：采用问卷调查、心理物理检查、功能磁共振成像等方法对父母进行研究。此外，评估儿童的激素状态，并对父母和儿童进行HLA测序。计划进行体臭分析，以客观化与发育相关的体臭变化。我们希望这个项目揭示了家庭互动的发展动态。这些结果将通过包括嗅觉通道来扩展当前关于结合的知识，嗅觉通道形成了情感背景，并作为来自不同模态的信号的调制器。心理感觉研究与联结的结合是一种新的跨学科研究方法。将遗传变量（HLA）纳入体臭评估是一种新颖的方法，与激素变化的相互作用使该项目具有挑战性和独特性。因此，该项目可以增加新的战略，以预防由早产或产后抑郁症等引起的结合障碍。