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The Lobes of the Brain – Interactive!
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Introduction
Each half of the brain is divided into four areas called Lobes.
The Frontal Lobes
The Frontal Lobes are located in the front of the brain. They are very large and have many functions. The frontal lobes are considered to be our emotional control centre. They play a central role in our personality and how we act. They are also involved in attention skills and controlling movement.
The frontal lobes manage skills known as Executive Functions. These are very important skills we use for things such as solving problems, planning, making decisions and controlling our behaviour. The frontal lobes work like the conductor of an orchestra who keeps all the musicians playing together harmoniously.
Some Effects of an Injury to the Frontal Lobes
The frontal lobes are particularly vulnerable to injury because they are large and are at the front of the brain. An injury to the frontal lobes can lead to a number of changes including:
- Changes in personality.
- Difficulties with attention and taking in information.
- Emotional responses may be reduced.
- Difficulties with motivation (Apathy) or getting things started (Initiation).
- Changes in the ability to control behaviour (Disinhibition). This means that the person may be more impulsive. They may say or do things without considering the consequences.
- Reduced self-awareness (Anosagnosia).
- Poor judgment and decision-making.
- Difficulty planning things and meeting goals.
- ‘Black and white’ thinking (Concrete Thinking).
- Irritability and less tolerance of frustration.
The Temporal Lobes
The Temporal Lobes are located on the side of your brain just above your ears. One of their important functions is to help us process and understand sounds such as musical notes and speech. Other functions include managing our emotions and recognising faces. A part of the temporal lobe, called the Hippocampus, also plays an important role in memory.
Some Effects of an Injury to the Temporal Lobes
- Difficulty in recognising faces, things or places.
- Difficulty understanding or remembering what people say.
- Difficulty reading.
- Difficulty recognising objects.
- Short-term memory difficulties.
- Changes in sexual behaviour.
- Increased aggression.
The Parietal Lobes
The Parietal Lobes are located behind the frontal lobes and above the temporal lobes. One of their main functions is to allow us to make sense of things we touch – for example, whether an object is smooth or sharp, firm or soft.
The parietal lobes also tell us where our body is in relation to the objects around us. This allows us to move around without bumping in to things. This function is known as Visuospatial Processing.
The parietal lobes are also important for skills such as maths, spelling, hand-eye coordination and fine motor movements such as tying shoe laces.
Some Effects of an Injury to the Parietal Lobes
- Difficulty naming objects (Anomia).
- Difficulty in distinguishing left from right.
- Difficulties with hand-eye coordination.
- Difficulty making sense of what we see even if we do not have a visual impairment (Visual Perceptual difficulty).
- Difficulty knowing the function of an object.
- Problems with reading (Alexia), writing (Agraphia) or maths (Dyscalculia).
- Difficulty knowing where things are in relation to our own bodies; for example, how close an object is to us (Spatial Awareness Difficulties).
- Reduced self-awareness (Anosognosia).
- Visual Neglect.
The Occipital Lobes
The Occipital Lobes are located at the back of the brain. They have an important role in vision because they allow us to make sense of information that comes from our eyes. This process is known as Visual Perception.
Some effects of an injury to the Occipital lobes:
- Sight defects
- Blurred vision or sight loss.
- Visual hallucinations and distortions.
- Difficulty with identifying colours
- Difficulty recognising words.
- Difficulty recognising when people, or things, are moving .