Sickness behavior in animals: Implications for health and wellness

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Language: Английский

Disgust sensitivity and psychopathic behavior: A narrative review

Translational Neuroscience, Journal Year: 2024, Volume and Issue: 15(1)

Published: Jan. 1, 2024

Humans live under constant threat from pathogenic microorganisms and minimizing such has been a major evolutionary selective force in shaping human behavior health. A particular adaptive mechanism against the harm caused by parasites their infectiousness is disgust sensitivity, which evolved to detect avoid poisonous foods as well bodily secretions harboring virulent microorganisms. This ubiquitous reflexive requires integration of several internal external sensory signals between brain, autonomic nervous system (ANS), gastrointestinal tract. Although emotional expression experienced almost all individuals, neural mechanisms underlying sensitivity may differ certain psychiatric conditions. Psychopathy, for instance, personality disorder contagious apparently absent or downregulated its atypical temperament. In this review, we provide convergent behavioral, anatomical, cellular evidence suggest that fractured experience might be an additional feature psychopathic behavior. First, discuss networks brain regions mediating states then intersection ANS tract processing relevance aberrant antisocial Together, work highlights interconnections bilateral body plan integrated cell network relevant understanding common principles function dysfunction levels domains.

Language: Английский

Phoretic mites as benign passengers: no influence on mate choice in the burying beetleNicrophorus nepalensis

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 15, 2024

Abstract Mate choice is a fundamental aspect of sexual selection where the ‘chooser’ chooses ‘courter’ by assessing variety traits that communicate potential fitness. However, influence interspecific interactions, such as symbiosis, on mate remains underexplored. We addressed this shortcoming with experiments burying beetle Nicrophorus nepalensis and their interactions phoretic mites Poecilochirus carabi . The can act either mutualists or parasites depending presence competitors mite densities, thus potentially influencing choice. In laboratory experiment, we presented female N. range natural densities: 0, 5, 10, 20, males carrying 0 10 in an olfactory-based assay. Subsequently allowed females to breed chosen male all before evaluating fitness effects varying densities. found across densities had no preference for without mites. line this, effect brood size averaged larva mass. per breeding cohort did positively affect number offspring. Our results suggest benign passengers, not directly affecting

Language: Английский