ILLUSIONS

Illusions can be divided into two categories:

1. Vestibular illusions: Vestubular illusions occur when the vestibular system in the inner ear, which helps control balance and spatial orientation, sends misleading information to the brain. These illusions can cause a person to feel disoriented or perceive motion that is not occurring. Examples of vestibular illusions are somatogravic illusion and coriolis effect.

2. Visual illusions: Visual illusions occur when the brain misinterprets visual information from the eyes. They often involve discrepancies between the actual physical properties of an object and how it is perceived. Visual illusions can be caused by various factors such as context, light conditions, patterns, and the brain's assumptions based on prior experiences. When the brain's interpretation does not match the actual stimuli, an illusion occurs.

Binocular vision: Binocular vision is the use of both eyes to perceive an image. Binocular vision helps avoid visual illusions by providing two slightly different images from each eye, which the brain combines to create a 3D view. This enhances depth perception and spatial accuracy.

Colour blindness: Colour blindness is the inability to distinguish between certain colours. People with colour blindness see the world differently in terms of color, but their ability to interpret visual information regarding shapes, patterns, and depth remains intact.

Rapid eye movements: Rapid eye movements do not cause visual illusions because they are normal movements of the eyes used to quickly shift focus from one point to another. These movements, known as saccades, allow the eyes to scan the environment efficiently.