The Role of the Frontal Lobes Table of Contents
1 Introduction_ 3
2 The Structure and Functional Anatomy of the Frontal Lobes 3
2.1 Figure 1. A diagrammatic representation of the brain_ 5
3 Luria’s Model of Brain Function_ 5
4 The Complex Function of Frontal Lobes 6
5 No Longer En-Gage-ing; What Happens When The Frontal Lobes Go Wrong?_ 6
5.1 The Frontal Lobes and Personality 7
5.2 The Frontal Lobes and Executive Function / Drive 8
5.2.1 Theories of frontal lobe function_ 9
5.2.1.1 Working memory_ 9
5.2.1.2 Controlled vs Automatic processes 9
5.2.1.3 Use of Scripts 9
5.2.1.4 Guidance
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The frontal lobes are described as the brain’s “orchestra leader” (Martin, 1998, p. 190), which would place them at the reins of controlling effective behaviour. Damage to the frontal lobes encompasses a wide range of symptoms including deficits in executive functioning, changes in personality, emotional expression and social interaction. This includes apathy and lack of spontaneity, inability to plan and modify the sequencing of behaviour and inappropriate behaviour.
2 The Structure and Functional Anatomy of the Frontal Lobes ===========================================================
In order to understand the complex nature of the frontal lobes, a synopsis of the anatomy of the relevant parts of the brain is pertinent.
Each hemisphere of the brain is divided into four geographical areas: the frontal lobe, parietal lobe, temporal lobe and occipital lobe. This division is not based on functionality, but is an aesthetic one. The frontal lobe is the largest of these geographic areas with the Rolandic fissure (Central sulcus) and the Silvian fissure (Lateral sulcus) and the Corpus Callosum creating the boundaries.
The frontal lobe is comprised of three functionally specific areas on the surface area of the cerebral cortex: the precentral cortex or primary motor cortex (Brodmann’s area 4), the premotor cortex (Brodmann’s area 6) and the prefrontal
The Frontal lobe; which is to do with behaviour, the person’s personality, interpretation and feelings.
The frontal lobe is responsible for decision making, processing (like planning), and speech fluency. In our exhibit, the frontal lobe is represented by stimulating activities including tongue twisters and a “chose your
The Frontal lobe holds a very high position in the brain and is located directly in the front of the brain. This lobe conducts the entire decision making process and also has connections with memory, emotion and an individual’s personality. “But it is also
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There have been various studies which have attempted to investigate whether brain dysfunction can lead to certain defects, and damage to the prefrontal cortex is an area of research that over the years has shown to have negative effects on behaviour, cognition and emotions. The prefrontal cortex is situated on the frontal lobes of the brain and the frontal lobes are generally concerned with discouraging unsuitable and inapt behaviours. The prefrontal cortex usually play a fundamental role in one’s decision making, organisation of information and planning. Hence, any damage to the prefrontal cortex leads to a lack in decision making and an inability to plan.
It also showed low activity in the frontal lobe (Coon, Denise and Mitterer, John O).The frontal lobe is responsible for movement, social skills, planning, emotions, behavior, thoughts, and focus. Reduction of the temporal lobe areas, such as the hippocampus, amygdala, superior temporal gyri, prefrontal cortex, thalamus, anterior cingulate, and corpus callosum have been seen (Javitt, Daniel C.). The temporal lobe is responsible for memory, behavior, language, hearing, and the ability to recognize a person, place, or thing. Over activeness of dopamine system, serotonin, glutamine and amino butyric acid can also be the cause of
The frontal lobe is the area of the brain most closely associated with cognitive thought. This section helps individuals rationalize and make decisions on issues of right and wrong, as well as to predict the consequences of an action. Operating within the limits of socially acceptable
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The fundamental ability of the prefrontal cortex is to represent information not currently in the environment; its role within the temporal lobe is to create a mental sketch pad within an individuals mind (Goldman-Rakic). It regulates short term and long term decision making and helps individuals focus thoughts and houses active working memory.
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The frontal lobe is what controls the cognitive capabilities in a human. It controls the problem solving, sexual behavior, memory, social behavior, language, impulse control, and etc., amongst executive function. Executive function is mental skills that we use in an everyday task to get through things. If a frontal lobe is damaged it could cause memory loss, the change in mood, short temper, and the lack of control to manage behavior.
The cerebral cortex has numerous functions, each being unique to how it affects the human body. Scientist categorized the cerebral cortex into four different lobes depending on their purpose to improve our understanding and assist our research of the cerebral cortex. The four lobes of the cerebral cortex are the Frontal, parietal, occipital, and temporal lobes. The frontal lobe, located at the front of the brain close to our foreheads, is in charge of more intricate and complex work of the brain. It manages jobs such as contemplating, making decisions, and planning, but the frontal lobe is also in charge of emotions and communication proficiency. The frontal lobe is an important component of the cerebral cortex and is associated in most every day life experiences. Whether it be deciding on an outfit for the day, or having a conversation with a friend. The parietal lobe transfers our senses like contact, temperature, and aroma into things the body can feel and comprehend. If
The human brain is a big, intricate—yet delicate, structure in the human body. It is the key structure in cognitive function. Any damage to the brain does not only “erase” memories but also may “deceive” the brain to erroneously remember a new object as being familiar (2010). The innovative researchers at Cambridge University investigated this phenomenon in their research on The Paradoxial False Memory for Objects after Brain Damage.