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1. bbrfoundation.org › content › biology-emotionsThe Biology of Emotions | Brain & Behavior Research Foundation

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   Jan 15, 2016 · Scientists believe that emotions arose in higher organisms because they helped them survive. Problems with biological systems that regulate the emotions often have precisely the opposite effect: having major depression or chronic, acute anxiety makes daily survival that much more difficult.

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2. scienceexchange.caltech.edu › emotionsWhere Do Feelings and Emotions Come From? | Caltech Science ...

   scienceexchange.caltech.edu › emotions

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   During an emotion, activity in the brain triggers responses in the body. For example, during fear, the heart may beat faster. During sadness, tears may well up in the eyes. For a long time, scientists thought individual emotions arose from specific regions of the brain: The amygdala was thought to be responsible for fear, for example.

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4. www.psychologytoday.com › us › blogHow Bacteria Affect Our Health, Emotions, and Behavior

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   • The Impact of The Microbiome on Mood and Physical Needs
   • The Role of The Vagus Nerve
   • Gut Bacteria and Serotonin

   Presently, massive studies of these little lifeforms that inhabit us are ongoing. From the surface of our skin (you should see what lives inside your navel) to our nose, mouth, genitals, stomach, and especially our intestines—all are being examined to learn the effects of our microbiome and its impact on our behavior. We have all experienced that s...

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   But how could the little bacterial bugs living inside our guts do all of this? It is called the gut-brain axis and it comes together thanks to that wondrous Vagus nerve, also known as the 10th cranial nerve or CN X, the longest nerve of the autonomic nervous system. The vagus nerve is connected to the brain stem (medulla oblongata) bilaterally and ...

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   But let’s get back to our microbiome. Take for example serotonin, that wonderful little neurotransmitter/hormonethat helps keep us happy. You probably assume that serotonin would be made in the brain and it just stays there—that seems sensible, right? Actually, our gut bacteria manufacture about 95 percent of our body’s supply of serotonin, and mos...

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5. pmc.ncbi.nlm.nih.gov › articles › PMC8259711Expressions of emotions across species - PMC

   pmc.ncbi.nlm.nih.gov › articles › PMC8259711

   Since emotions are evolutionarily evolved products of brain function, it may reveal crucial to investigate how emotion states are implemented across diverse species, wherever possible including classical and non-typical model organisms . Only this approach may allow us to extract universal principles of emotions and their neuronal basis and distinguish them from mechanistic details in specific ...

6. www.nature.com › articles › nrn3403The nature of feelings: evolutionary and neurobiological origins

   www.nature.com › articles › nrn3403

   Jan 18, 2013 · Feelings are mental experiences of body states. They signify physiological need (for example, hunger), tissue injury (for example, pain), optimal function (for example, well-being), threats to the ...

   • Author: Antonio Damasio, Gil B. Carvalho

   • Publish Year: 2013

7. www.sciencealert.com › new-findings-suggest-humanHuman Emotions Really Are Affected by Gut Bacteria, New Study ...

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   Jul 3, 2017 · In contrast, the women with higher levels of Prevotella demonstrated lower volume in these areas, and demonstrated greater connections between emotional, attentional and sensory brain regions. When shown the negative images, the Prevotella participants showed lower activity in the hippocampus – but reported higher levels of anxiety, distress and irritability after looking at the photos.

8. People also ask

   Why do emotions arose in higher organisms?

   • Scientists believe that emotions arose in higher organisms because they helped them survive. Problems with biological systems that regulate the emotions often have precisely the opposite effect: having major depression or chronic, acute anxiety makes daily survival that much more difficult.

   The Biology of Emotions | Brain & Behavior Research Foundation

   bbrfoundation.org/content/biology-emotions

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   How does the microbiome affect emotions?

   • Research shows that the microbiome influences emotions as well as psychiatric conditions such depression and anxiety. The vagus nerve is key to understanding the gut-brain axis and why one often feels things in the gut and heart. A typical human cell consists of about 20,000-25,000 genes neatly packed in the DNA.

   How Bacteria Affect Our Health, Emotions, and Behavior

   www.psychologytoday.com/us/blog/spycatcher/202204/how-bacteria-affect-our-health-emotions-and-behavior

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   Are emotions related to the gut microbiome?

   • These findings collectively offer early evidence suggesting emotions and emotion regulation strategies are related to the gut microbiome. A prior study identified the significant association of microbial diversity (i.e. Shannon diversity) with positive (but not negative) emotions among participants in the Prevotella -enterotype group.

   Gut feelings: associations of emotions and emotion regulation with the

   www.cambridge.org/core/journals/psychological-medicine/article/gut-feelings-associations-of-emotions-and-emotion-regulation-with-the-gut-microbiome-in-women/F1AA1EBBD2C4680CEC7310B6FCD95734

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   Do gut organisms influence emotions?

   • Up until now, most research looking into how gut organisms influence emotions has been conducted on animals, with scientists finding that the bacterial composition of rodent guts can have an effect on the animals' behaviour.

   Human Emotions Really Are Affected by Gut Bacteria, New

   www.sciencealert.com/new-findings-suggest-human-emotions-really-are-affected-by-gut-bacteria

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   How do emotions evolve?

   • The evolution of feelings. Implicating subcortical regions such as the upper brainstem and hypothalamus in the generation of feelings has resounding evolutionary implications. Non-human mammals, birds, reptiles and even phylogenetically older species clearly display behaviours that are consistent with emotions and feelings 5, 42, 43, 126.

   The nature of feelings: evolutionary and neurobiological origins

   www.nature.com/articles/nrn3403

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   Are emotion scores associated with overall microbiome structure?

   • We also found that negative emotion scores were significantly associated with overall microbiome structure at the metabolic pathway level at three time points (Fig. 3e, f, h). Positive emotion, cognitive reappraisal, and suppression scores were not significantly associated with overall microbiome configurations. Fig. 3.

   Gut feelings: associations of emotions and emotion regulation with the

   www.cambridge.org/core/journals/psychological-medicine/article/gut-feelings-associations-of-emotions-and-emotion-regulation-with-the-gut-microbiome-in-women/F1AA1EBBD2C4680CEC7310B6FCD95734

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9. www.cambridge.org › core › journalsGut feelings: associations of emotions and emotion regulation ...

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   Mar 21, 2023 · Emotion regulation is a higher-order, transdiagnostic process that involves both up- and down-regulation of positive and negative emotions, and scholars have posited this process may explain how and why both positive and negative emotions appear to predict physical health outcomes (Trudel-Fitzgerald et al., Reference Trudel-Fitzgerald, Millstein, von Hippel, Howe, Tomasso, Wagner and ...