https://mindlab-blog-drafts.pages.dev/tags/glutamate/Recent content in Glutamate on MindLAB Neuroscience — Draft ReviewHugo -- 0.156.0en-us2026 Dr. Sydney Ceruto — MindLAB NeuroscienceTue, 05 May 2026 00:00:00 +0000https://mindlab-blog-drafts.pages.dev/posts/glutamate-and-ocd/Tue, 05 May 2026 00:00:00 +0000https://mindlab-blog-drafts.pages.dev/posts/glutamate-and-ocd/<h1 id="glutamate-gaba-and-ocd--the-chemical-imbalance-that-keeps-your-brain-hyperactive">Glutamate, GABA, and OCD — The Chemical Imbalance That Keeps Your Brain Hyperactive</h1> <p><img alt="Cortical circuitry locked in a hyperexcitable firing state — Dr. Sydney Ceruto, MindLAB Neuroscience." loading="lazy" src="https://mindlab-blog-drafts.pages.dev/images/posts/glutamate-and-ocd-hero.webp"></p> <p>The relationship between glutamate and OCD is fundamentally a story of cortical hyperexcitation. 7-Tesla magnetic resonance spectroscopy has detected elevated glutamate and reduced GABA in the anterior cingulate cortex of individuals with OCD. The imbalance produces sustained firing in cortico-striatal-thalamo-cortical loops — the circuits whose terminations a healthy brain can release.</p>https://mindlab-blog-drafts.pages.dev/posts/directed-attention-fatigue/Thu, 23 Apr 2026 00:00:00 +0000https://mindlab-blog-drafts.pages.dev/posts/directed-attention-fatigue/<h1 id="why-your-brain-cant-focus-after-hours-of-deep-work-the-neuroscience-of-directed-attention-fatigue">Why Your Brain Can&rsquo;t Focus After Hours of Deep Work: The Neuroscience of Directed Attention Fatigue</h1> <p><img alt="Lateral prefrontal cortex with accumulating glutamatergic vesicles in copper-lit pyramidal neurons — Dr. Sydney Ceruto, MindLAB Neuroscience." loading="lazy" src="https://mindlab-blog-drafts.pages.dev/images/posts/directed-attention-fatigue-hero.webp"></p> <p>Directed attention fatigue is measurable glutamate accumulation in the lateral prefrontal cortex after prolonged cognitive effort — a neurochemical bottleneck that impairs control of effortful decisions, not a willpower failure. In a 2022 MindLAB Neuroscience review of the <a href="https://doi.org/10.1016/j.cub.2022.07.010">Wiehler et al. <em>Current Biology</em> study</a>, the mechanism was finally nailed down: cognitive work biochemically alters the brain regions that govern sustained focus.</p>