What does the fusiform gyrus do?

What does the fusiform gyrus do?

The fusiform gyrus is a large region in the inferior temporal cortex that plays important roles in object and face recognition, and recognition of facial expressions is located in the fusiform face area (FFA), which is activated in imaging studies when parts of faces or pictures of facial expressions are presented to …

What is the meaning of fusiform?

Fusiform means having a spindle-like shape that is wide in the middle and tapers at both ends. It is similar to the lemon-shape, but often implies a focal broadening of a structure that continues from one or both ends, such as an aneurysm on a blood vessel.

Is the difficulty recognizing familiar faces?

Prosopagnosia is a neurological disorder characterized by the inability to recognize faces. Prosopagnosia is also known as face blindness or facial agnosia.

Where is the primary visual cortex located quizlet?

The primary visual cortex is located at the base of each occipital lobe. The primary visual cortex is a major destination of visual information from the eyes. The information travels to the primary visual cortex from the photo-receptors (visual sensory receptors) located on the retina at the back of each eye.

Which type of cell in visual cortex responds best to a moving bar of light?

A simple cell in the primary visual cortex is a cell that responds primarily to oriented edges and gratings (bars of particular orientations). These cells were discovered by Torsten Wiesel and David Hubel in the late 1950s.

What is a doula oblongata?

Medulla oblongata, also called medulla, the lowest part of the brain and the lowest portion of the brainstem. The medulla oblongata plays a critical role in transmitting signals between the spinal cord and the higher parts of the brain and in controlling autonomic activities, such as heartbeat and respiration.

What is the most common cause of cerebellar disease?

The most prevalent causes of acute cerebellar ataxia are viruses (e.g., coxsackievirus, rubeola, varicella), traumatic insults, and toxins (e.g., alcohol, barbiturates, antiepileptic drugs) (see Chapter 92).

What are the early signs of ataxia?

Symptoms

• Poor coordination.
• Unsteady walk and a tendency to stumble.
• Difficulty with fine motor tasks, such as eating, writing or buttoning a shirt.
• Change in speech.
• Involuntary back-and-forth eye movements (nystagmus)
• Difficulty swallowing.

What are the signs of cerebellar dysfunction?

What are the symptoms of acute cerebellar ataxia?

• impaired coordination in the torso or arms and legs.
• frequent stumbling.
• an unsteady gait.
• uncontrolled or repetitive eye movements.
• trouble eating and performing other fine motor tasks.
• slurred speech.
• vocal changes.
• headaches.

What triggers ataxia?

Ataxia is usually caused by damage to a part of the brain known as the cerebellum, but it can also be caused by damage to the spinal cord or other nerves. The spinal cord is a long bundle of nerves that runs down the spine and connects the brain to all other parts of the body.

What does ataxia feel like?

Symptoms of Ataxia Unsteady gait, staggering, tripping, falling, unsteadiness on stairs or maintaining balance on moving platforms, such as escalators or boats. These difficulties are often due to cerebellar dysfunction.

Can ataxia go away?

There is no cure for ataxia. The outlook will depend on the type, cause, and severity. Some types of hereditary ataxia can shorten a person’s lifespan, but many people will have the same life expectancy as those without the condition.

What is an abnormal gait?

Abnormal gait or a walking abnormality is when a person is unable to walk in the usual way. This may be due to injuries, underlying conditions, or problems with the legs and feet.

Can you drive with ataxia?

Most people with a cerebellar ataxia are able to safely drive.

What is an ataxic gait?

Ataxia is typically defined as the presence of abnormal, uncoordinated movements. This usage describes signs & symptoms without reference to specific diseases. An unsteady, staggering gait is described as an ataxic gait because walking is uncoordinated and appears to be ‘not ordered’.

How do you fix ataxic gait?

Intensive physical therapy more than 1 hour per day for at least 4 weeks, focused on balance, gait, and strength training in hospital and home for patients with degenerative cerebellar ataxia can improve ataxia, gait ability, and activity of daily living.

How do you improve ataxic gait?

Neuromotor exercises and physical therapy focusing on coordination and balance has been shown to improve or halt the progression of functional decline and are the mainstay treatments for Ataxia. The evidence has shown that balance training could improve the quality of walking as well as reduce the risk of falls.

What are the types of ataxia?

There are several types of ataxia, including: ataxia telangiectasia (AT), episodic ataxia, Friedreich’s ataxia, multiple system atrophy (MSA) and spinocerebellar ataxia. This condition happens when the part of the brain called the cerebellum is damaged. There is no cure for ataxia, but the symptoms can be treated.