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One meta analysis on first episode depression observed distinct patterns of grey matter reductions in medication free, and combined populations; medication free depression was associated with reductions in the right dorsolateral prefrontal cortex, right amygdala, and right inferior temporal gyrus; analysis on a combination of medication free ...
Poor diet in early childhood affects the number of neurons in parts of the brain. [1]Nutritional neuroscience is the scientific discipline that studies the effects various components of the diet such as minerals, vitamins, protein, carbohydrates, fats, dietary supplements, synthetic hormones, and food additives have on neurochemistry, neurobiology, behavior, and cognition.
Each macronutrient can impact cognition through multiple mechanisms, including glucose and insulin metabolism, neurotransmitter actions, oxidative stress and inflammation, and the gut-brain axis. [ 4 ] [ 5 ] [ 6 ] Inadequate macronutrient consumption or proportion could impair optimal cognitive functioning and have long-term health implications.
In plants and animals, mineral absorption, also called mineral uptake is the way in which minerals enter the cellular material, typically following the same pathway as water. In plants, the entrance portal for mineral uptake is usually through the roots. Some mineral ions diffuse in-between the cells. In contrast to water, some minerals are ...
Inadequacy of the monoamine hypothesis of depression While depression is a complex condition with many factors involved, it is commonly attributed to an imbalance of several key monoamine neurotransmitters , including serotonin , dopamine and norepinephrine .
Studies have shown overlapping mechanisms in psoriasis and depression; psoriasis causing disturbances in the gut microbiota that reflect in the brain causing depression that in turn can cause the stress that affects the microbiome. [39] Probiotics may reduce symptoms of depression through the vagus nerve and sympathetic pathways.
The Decay theory is a theory that proposes that memory fades due to the mere passage of time. Information is therefore less available for later retrieval as time passes and memory, as well as memory strength, wears away. [1] When an individual learns something new, a neurochemical "memory trace" is created. However, over time this trace slowly ...
Thus, a damaged hippocampus can cause memory loss and inability of cognitive function. Furthermore, as the hippocampus is the region controlling learning and memory processes, the research on Schaffer collaterals may help to find treatments for diseases related to the hippocampus or its neural processing pathways such as Alzheimer's disease , a ...