Depression, which affects approximately 8% of Americans over the age of 12, is a prevalent psychiatric disorder characterized by tiredness, sadness, lack of interest in daily activities, reduced concentration, reckless behaviors, and in some extreme cases, suicidal ideation.
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Spatial cognition and navigation are evolutionarily critical for a number of tasks that are necessary for survival, including the locating of food, water, and mates. Research in the spatial cognition mechanisms in the human brain has enabled a greater understanding of disorders such as Alzheimer’s disease, in which one of the most common symptoms is spatial disorientation. Rat models have enabled a much more fine-grained understanding of these spatial cognition processes through the recording of single neurons in the brains of freely moving animals.
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Understanding how people remember and why they forget is a perennial research topic in psychology. A classic finding is that recalling information from memory is known to increase the probability of being able to retrieve that information again later, and strengthens long-term memory. This benefit has been shown to persist for months after the initial recall attempt. This phenomena is known as the testing effect. More recently, there have been attempts to apply this research finding in educational contexts.
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Pencils and Shrinky Dinks technology are used to detect the presence of gases.
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