The prefrontal cortex refers to the front section of the frontal cortex. It can be categorized into various sections. It comprises approximately 10% of the brain volume. The prefrontal cortex plays a critical role in various executive functions of the brain. The prefrontal cortex plays a significant role in enhancing improved cognitive functions such as reasoning, planning, thinking, and decision making. It comprises the primary source of human creativity and intelligence (Bright et al., 2020) . The idea of working memory was proposed by Hitch & Baddeley in a study of human psychology. The case of the tamping rod and Phineas Gage indicated interesting characteristics between prefrontal cortex damage and impaired working memory. After the prefrontal damage on Gage, there were reported features of limited planning ability, poor social skills, and low impulse control. From the Gage incident, it was clear that frontal lobes play a significant role in various mental functions such as planning and personality.
There are prefrontal neurons that play an essential role in holding information. One of the key features of the brain is the involvement in waiting and delays. The success of the memory indicates that an individual can remember what happened. The experiments by Shintaro and coworkers examined the working of neurons in animals. In this study, Funahashi found out that neurons only tend to respond when squares are flashed in a specific location. During the experiment, the neurons continued to respond when neurons were presented in other screen positions. According to Mark Stokes's proposal, information can be stored in neural networks. Various changes in neuron connectivity were referred to as the activity of silent working memory (McCormick et al., 2018) .
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There are various definitions of the term brain; one of the definitions tends to focus more o the working of the human brain. According to this definition, the brain is perceived as a system that creates a representation of the world to allow individuals to act within them to achieve various goals and objectives (Chain et al., 2018) . This definition tends to emphasize the role of the human brain in human survival. The study of the various mental processes is integrated with cognitive psychology. It explores the features and functions of the rain and the entire brain's operations. In his experiment, Donder examined how long it takes to made decisions. He achieved this through evaluating reaction time and how much time it takes to respond to stimulus presentations. Donders experiment was critical in the study of the human mind and in cognitive psychology. Although he did not measure the direct relationship between participant's response and presentation stimulus, he provided critical information on the time duration of reaction times.
The human brain has several areas that are activated by different face aspects such as attractiveness evaluation, initial processing, and basic face processing, and emotional reactions. Human plays a significant role in remembering events. Some memories are short-term, while others are long-term. Short-term memory reminds individuals about short-term events such as 10 to 15 seconds unless repeated (Chain et al., 2018) . Long-term memory, on the other hand, enables individuals to remember events that happened over the duration of a week or several years ago. The other difference in the human brain can be evaluated from the aspect of episodic memories. The semantic memories are confined to factual memories.
Certain parts of the human play a significant role in retrieving past events as well as forming new memories. Memories take many forms, such as auditory, visual, and olfactory. The various parts of the human brain are interconnected by neural networks. They enable the various parts of the human brain to communicate with each other. The brain can be perceived to take the form of a wired diagram that is created by nerve axons connecting different parts of the brain.
Reference
Bright, M. G., Whittaker, J. R., Driver, I. D., & Murphy, K. (2020). Vascular physiology drives functional brain networks. NeuroImage , 217 , 116907.
Chai, W. J., Abd Hamid, A. I., & Abdullah, J. M. (2018). Working memory from the psychological and neurosciences perspectives: a review. Frontiers in psychology , 9 , 401.
McCormick, C., Ciaramelli, E., De Luca, F., & Maguire, E. A. (2018). Comparing and contrasting the cognitive effects of hippocampal and ventromedial prefrontal cortex damage: a review of human lesion studies. Neuroscience , 374 , 295-318.
