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Dzhokhar Tsarnaev— Case Archive
evidenceevidencevideo2015 Federal TrialDefense Exhibit 3434aDefense Exhibit 3434A contains an animation embedded in the brain-maturation slides admitted during Jay Giedd's testimony. Giedd explained that blue coloring represented maturation toward adult levels and that the prefrontal cortex was among the latest areas to mature. He described the visualization as an average of 52 scans, emphasized substantial individual variation, and characterized continuing development as healthy rather than defective or pathological.
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Defense Exhibit 3434a

Defense Exhibit 3434A contains an animation embedded in the brain-maturation slides admitted during Jay Giedd's testimony. Giedd explained that blue coloring represented maturation toward adult levels and that the prefrontal cortex was among the latest areas to mature. He described the visualization as an average of 52 scans, emphasized substantial individual variation, and characterized continuing development as healthy rather than defective or pathological.

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  • Small video embedded in a brain-maturation slide

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The animation illustrated general brain-development patterns, not the maturity or condition of an individual person's brain.

Trial Record (1)