The human brain is a complex organ that performs a variety of functions. Topographically, these tasks are separated into specific areas to guarantee a more organized workflow (Rosenke et al., 2021). One of these sectors is the primary visual cortex (V1), which is also called area 17 according to Brodmann’s classification. It is located in the occipital lobe’s posterior lobe and has the role of processing visual information for later analysis.
In addition, it allows for orientation, color recognition, and spatial frequency, making this area essential for seeing. According to Heilbron et al. (2020), this part of the brain also contributes to comprehension of written language and recognition of individual letters. However, it is unclear to what extent potential damage to V1 may specifically affect this function. Therefore, area 17 is necessary for visual perception, as it processes the initial visual information it receives.
As the primary visual cortex processes all visual information, damage to this area results in complete blindness. The patient will be unable to see and will partially lose the ability to orient in space (Rosenke et al., 2021). This issue will substantially limit their daily activities and force them to use special aids to perform basic household tasks.
For example, cooking can be dangerous because it involves sharp objects that require special attention to avoid injuries. Going outside alone will require special equipment or assistance with vision support, such as a specifically trained dog or another person. These limitations will also affect their ability to learn new information, as everything will have to be transferred to them via auditory or tactile media. In conclusion, area 17 is a critical part of the brain that processes visual information, and damage to this specific location may cause complete blindness, leading to a substantial decrease in quality of life.
References
Heilbron, M., Richter, D., Ekman, M., Hagoort, P., & de Lange, F. P. (2020). Word contexts enhance the neural representation of individual letters in early visual cortex. Nature Communications, 11(1).
Rosenke, M., van Hoof, R., van den Hurk, J., Grill-Spector, K., & Goebel, R. (2021). A probabilistic functional atlas of human occipito-temporal visual cortex. Cerebral Cortex, 31(1), 603–619.