A5083768685- Olfactory and Sensory Function Studies
- Biochemical Analysis and Sensing Techniques
- Advanced Chemical Sensor Technologies
- Multisensory perception and integration
- Neurobiology and Insect Physiology Research
- Color perception and design
- Neuroendocrine regulation and behavior
- Stress Responses and Cortisol
- Action Observation and Synchronization
- Neural and Behavioral Psychology Studies
- Memory and Neural Mechanisms
- Hormonal and reproductive studies
- Evolutionary Psychology and Human Behavior
- Sensory Analysis and Statistical Methods
- Memory Processes and Influences
- Psychology of Moral and Emotional Judgment
- Primate Behavior and Ecology
- Sexual Differentiation and Disorders
- Behavioral Health and Interventions
- Nicotinic Acetylcholine Receptors Study
- Allergic Rhinitis and Sensitization
- Neuroscience and Neuropharmacology Research
- Veterinary Equine Medical Research
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Mental Health Research Topics
Heinrich Heine University Düsseldorf
2014-2023
National Institute of Mental Health
2018
Kiel University
1996-2005
Czech Academy of Sciences, Institute of Psychology
2004
Justus-Liebig-Universität Gießen
1988
The communication of stress/anxiety between conspecifics through chemosensory signals has been documented in many vertebrates and invertebrates. Here, we investigate how anxiety conveyed by the sweat humans (N = 49) awaiting an academic examination are processed human brain, as compared to control obtained from same donors a sport condition. stimuli were pooled according donation condition administered 28 participants (14 males) synchronously breathing via olfactometer. perceived with low...
Episodic memory refers to the conscious recollection of a personal experience that contains information on what has happened and also where when it happened. Recollection from episodic implies kind first-person subjectivity been termed autonoetic consciousness. is extremely sensitive cerebral aging neurodegenerative diseases. In Alzheimer's disease deficits in function are among first cognitive symptoms observed. Furthermore, impaired observed variety other neuropsychiatric diseases...
Brain development in mammals has been proposed to be promoted by successful adaptations the social complexity as well and non-social chemical environment. Therefore, communication via chemosensory signals might have still a phylogenetically ancient channel transmitting evolutionary significant information. In humans, neuronal underpinnings of processing chemosignals investigated relation kin recognition, mate choice, reproductive state emotional contagion. These studies reveal that human are...
In accordance with simulation theories of empathy, the somatosensory cortex is involved in perception pain others. Cognitive processes, like perspective taking, can alter empathy-related activity within cortex. The current study investigates whether this modulation caused by imagined sensation or cognitive load a perspective-taking task. Applying within-subject design, participants (N = 30) watched pictures painful and nonpainful actions, while imagining reduced, normal, increased observed...
Abstract The olfactory event‐related potential (OERP) has been described as being dependent on exogenous stimulus features, but no effect made to examine possible endogenous determinants. We wanted separate and components of the OERP by using an oddball paradigm. A high concentration citral was used target stimulus, a low standard stimulus. Odors were presented within constantly flowing air stream. found that early (N1, P2) are modulated concentration, whereas late positive (P3‐1, P3‐2) vary...
Chemosensory communication of anxiety is a common phenomenon in vertebrates and improves perceptual responsive behaviour the perceiver order to optimize ontogenetic survival. A few rating studies reported similar humans. Here, we investigated whether subliminal face perception changes context chemosensory signals. Axillary sweat samples were taken from 12 males while they waiting for an academic examination exercising ergometric training some days later. 16 subjects (eight females)...
Abstract The aim of the present study was to investigate similarities and differences in olfactory visual processing emotional stimuli healthy subjects patients with major depressive disorder (MDD). Twenty‐five inpatients were investigated after admission psychiatric clinic. Fifteen them participated a second time, shortly before their discharge from hospital. A group subjects, matched according age sex, served as control. Chemsosensory event‐related potentials (CSERPs) recorded using...
Background The ability to communicate anxiety through chemosensory signals has been documented in humans by behavioral, perceptual and brain imaging studies. Here, we investigate a time-sensitive manner how signals, donated awaiting an academic examination, are processed the human brain, analyzing event-related potentials (CSERPs, 64-channel recording with current source density analysis). Methodology/Principal Findings In first study cerebral stimulus processing was recorded from 28...
Episodic memory refers to the recollection of personal experiences that contain information on what has happened and also where when these events took place. function is extremely sensitive cerebral aging neurodegerative diseases. We examined episodic performance with a novel test in young (N = 17, age: 21 – 45), middle-aged 16, 48 62) aged but otherwise healthy participants 8, 71 83) along measurements trait state anxiety. As expected we found significantly impaired group as compared group....
During emotion perception, context is an important source of information. Whether contextual cues from modalities other than vision or audition influence the perception social emotional information has not been investigated. Thus, present study aimed at testing and regulation in response to fearful facial expressions presented chemosensory stimuli derived sweat anxious individuals. In groups high (HSA) low socially (LSA) participants we recorded startle reflex (Experiment I), analysed...
The olfactory system and emotional systems are highly intervened share common neuronal structures. current study investigates whether (e.g., anger fear) physiological (saliva cortisol) stress responses associated with odor identification ability hedonic judgments (intensity, pleasantness, unpleasantness). Nineteen men participated in the modified Trier Social Stress Test (TSST) a control session (cycling on stationary bike). arousal was similar both sessions. In each session, participants’...
Chemosensory event-related potentials (CSERP) can be used to examine central nervous odor processing. An important question for understanding perception is how different concentrations are processed. In the present study two odors were chosen which activate either olfactory (linalool) or trigeminal (menthol) system. Both presented 11 subjects in four concentrations. Four had attend actively while others perceived under passive attention. The results showed that increased of stimulus resulted...
<h3>Background</h3> Body odor is a ubiquitous phenomenon. It commonly attributed to sweating and noted explicitly in the axillary area. Botulinum toxin A has recently been shown be effective for hyperhidrosis. Its effect on odor, however, unknown. <h3>Observations</h3> Sixteen healthy volunteers were injected with botulinum (Dysport, 100 U dissolved 0.9% sodium chloride solution) one axilla solution other randomized, double-blinded fashion. After 7 days, body was assessed by T-shirt sniff...