Two conditioned reflexes (CR) on flash were elaborated in five dogs in three experimental series. In one of them pressing on pedal were constantly reinforced with two pieces of liver, in other--escape or avoidance of skin stimulation with lifting of leg. In a third series, series of reinforcement choice, in front of animal with electrodes, fasting on leg, put the pedal. During of choice series defensive reactions were dominated in two dogs, alimentary reactions--three of them. For restoration alimentary behaviour in dog with great dominating of defensive reactions were many times reinforced with--food "passive" pressing legs on pedal during conditional stimuli, dog with less dominating of these reactions for restoration were enough a few coupling of conditional stimuli with food. With intensification electrocutaneus stimulation of legs or decreasing alimentary reinforcement we a success of diminishing of degree of alimentary reaction domination in one dog and in other ones temporarily changed of these domination on prevalence of defensive reactions. The results were compared with data, obtained in these dogs with technique of choice between probability and value of alimentary reinforcement. This comparison were permitted us of ranging dogs on scale "carefulness-riskiness", revealed of individual typological features of these animals.
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Health Promot Pract
January 2025
The University of Iowa, Iowa City, IA, USA.
Efforts to effect racial health disparity (RHD) policy change are urgent, necessary, and subject to a key barrier: defensiveness among White privileged audiences. Within the literature to date, such defensiveness is under-investigated, and when examined, is typically conceived of as an individual cognitive outcome-a message effect-rather than a communication interaction. Yet policy change advocacy efforts, ranging from community organizing to change campaigns, necessitate communication interactions between advocates and privileged policy change audiences, such as neighborhood groups or policymakers themselves.
View Article and Find Full Text PDFSci Rep
January 2025
Key Laboratory of Cancer Immunotherapy of Guangdong Tertiary Education, Guangdong CAR-T Treatment Related Adverse Reaction Key Laboratory, The First Affiliated Hospital/Clinical Medical School, Guangdong Pharmaceutical University, Guangzhou, 510080, China.
Previously, we demonstrated that natural host-defence peptide caerin 1.1/caerin 1.9 (F1/F3) increases the efficacy of anti-PD-1 and therapeutic vaccine, in a HPV16 + TC-1 tumour model, but the anti-tumor mechanism of F1/F3 is still unclear.
View Article and Find Full Text PDFSchizophr Bull Open
January 2025
NORMENT, Division of Mental Health and Addiction, Oslo University Hospital & Institute of Clinical Medicine, University of Oslo, 0424 Oslo, Norway.
There is a pressing need for biomarkers of violent behavior risk in psychosis. Previous research indicates that electrophysiological measures of automatic defensive reactions may have potential. The purpose of this study was to investigate associations between violent behavior in individuals with and without psychosis and electromyography (EMG) and electroencephalography (EEG) responses to startling auditory stimuli.
View Article and Find Full Text PDFNat Neurosci
January 2025
Institute of Neuronal Cell Biology, Technical University Munich, Munich, Germany.
Our understanding of Alzheimer's disease (AD) has transformed from a purely neuronal perspective to one that acknowledges the involvement of glial cells. Despite remarkable progress in unraveling the biology of microglia, astrocytes and vascular elements, the exploration of oligodendrocytes in AD is still in its early stages. Contrary to the traditional notion of oligodendrocytes as passive bystanders in AD pathology, emerging evidence indicates their active participation in and reaction to amyloid and tau pathology.
View Article and Find Full Text PDFNeuropharmacology
January 2025
School of Psychological Sciences, The University of Haifa, Haifa, Israel; The Integrated Brain and Behavior Research Center (IBBRC), University of Haifa, Haifa, Israel. Electronic address:
Fear is a fundamental emotion that triggers rapid and automatic behavioral response. Fear is known to suppress reward-seeking behaviors, interrupt previous activities to prioritize defensive responses and lead to rapid switch to defensive reactions. Dopamine (DA) plays a complicated role in the choice and performance of actions and it has a potential interaction of innate actions with the presence of fear.
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