No Inner Voice, Yoga & Brain Health, Monogamous Mice
Aug 2, 2024
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In this engaging discussion, Johanne S. K. Nedergaard, an author studying anendophasia, and Gary Lupyan, a researcher focusing on inner voices, explore fascinating insights into the human mind. They reveal how individuals without an inner voice struggle with verbal memory. The conversation also highlights yoga's potential to clear cognitive fog in cancer survivors. Dive into the intriguing findings about hormonal influences on promiscuity in mice, comparing behaviors that shape their social structures and parenting.
People lacking an inner voice face challenges in verbal memory but adapt through alternative cognitive strategies, showcasing diverse thought processes.
Yoga has been shown to significantly improve cognitive function in long-term cancer survivors, emphasizing its potential role in rehabilitation programs.
Deep dives
Understanding Endophasia: The Absence of an Inner Voice
A significant number of individuals, estimated at 5 to 10%, experience a condition called endophasia, which is characterized by the absence of an inner voice. Traditionally thought to be a universal human trait, this phenomenon reveals that many people navigate their thoughts and decisions without the internal dialogue most take for granted. Research has shown that individuals lacking an inner voice may rely on visual thoughts, converting images into words to communicate, or experience raw words without auditory sound. This has implications for cognitive tasks, as studies demonstrate that those without an inner voice may face challenges in memory tasks, yet they adapt by using alternative strategies to compensate for this unique cognitive experience.
Yoga as a Solution for Chemo Brain
Survivors of cancer often grapple with a cognitive decline known as chemo brain, which manifests as difficulties with memory and concentration post-treatment. A recent study highlighted the potential of yoga as a remedy, comparing its effects to aerobic exercise and stretching in a sample of nearly 80 cancer survivors. Participants engaged in their respective exercises for 150 minutes weekly over 12 weeks, with results showing that the yoga group experienced the most substantial cognitive improvements, with 81% reporting better focus and memory. The mindfulness aspect of yoga, along with its physical benefits, may play a crucial role in these cognitive enhancements, suggesting its integration into cancer rehabilitation programs.
Hormonal Influences on Monogamy in Mice
A fascinating study on field mice and deer mice reveals critical distinctions in monogamous versus promiscuous behaviors linked to hormonal differences. The field mouse produces a unique adrenal hormone, 20 alpha OHP, which influences nurturing behaviors and is absent in deer mice. Genetic analysis identified a new type of adrenal cell in field mice that produces this hormone, suggesting a strong connection between shared parenting and monogamous behavior. This discovery not only advances understanding of mammalian behavior but also has potential implications for addressing related conditions, such as postpartum depression, by exploring hormonal influences on parenting instincts.
Today, you’ll learn about people who lack an inner voice, how yoga could help cancer survivors defog their minds, and the newly discovered hormone that is connected to promiscuous behavior in mice.
“Yoga shows ‘most improvement’ in restoring brain health in long-term cancer survivors, Northeastern researcher says.” by Cynthia McCormick Hibbert. 2024.
“Management of Cancer-related Cognitive Dysfunction - Conceptualization Challenges and Implications for Clinical Research and Practice.” by Pascal Jean-Pierre. 2010.
“Yoga improves self-reported cognitive function among cancer survivors: results from the STAYFit trial.” by Neha P. Gothe, et al. 2024.
Monogamous Mice
“Some mice have a cheating heart. It’s a hormonal thing, scientists find.” by Mark Johnson. 2024.
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