FIGURE 3.

Changed structure and function in visual cortex in HA population. (A) Increased cortical thickness in sea-level college students who had a 30-day teaching at HA (Fan et al., 2016); (B) increased beta power in soldiers who had garrisoned at HA for 1 month (Zhao et al., 2016); (C) increased amplitude of low-frequency fluctuations (Zhang et al., 2017) (a) and voxel-mirrored homotopic connectivity (Chen et al., 2016b) (b) in soldiers who had garrisoned the frontiers at HA for 2 years; (D) The increased fractional anisotropy in Tibetan adolescents descending to sea level for 4 years (Zhang et al., 2013a); (E) Decreased gray matter volume (Zhang et al., 2010) (a) and decreased cerebrovascular reactivity (Yan et al., 2011b) (b) in the descendants of Han population who have immigrated to HA for several generations; (F) decreased cerebral blood flow (Wang et al., 2018) (a) and cortical thickness (Wei et al., 2017) (b) in HA Tibetan natives; (G) decreased the amplitude of low-frequency fluctuations in college students who studied at HA for 1 year (Wang et al., 2017). The arrow indicates the visual cortex.