Page 87 - Communication across Cultures

Chapter 3 Culture’s Influence on Perception

ceptual distortions. For example, the size-contrast illusion, where the perceived size of
an object changes depending on the surrounding objects, illustrates how our brain can
be biased by contextual cues.
Contextual influences also affect our perception and can contribute to illusions. Our
brain integrates incoming sensory information with prior knowledge and expectations
to construct our perception of the world. This can lead to perceptual biases and distor-
tions when the context or expectations override the actual sensory input. For instance,
the famous Müller-Lyer illusion, where two lines with arrow-like tails appear to be dif-
ferent lengths, demonstrates how our perception can be influenced by the surrounding
context.
Moreover, the way our brain processes sensory information can contribute to illu-
sions. The brain receives and processes a vast amount of information from our senses,
and it engages in complex neural computations to construct our perception. However,
these processes can sometimes result in perceptual discrepancies or errors, leading to il-
lusions. For example, in the motion aftereffect illusion, prolonged exposure to a moving
stimulus can cause a stationary stimulus to appear to move in the opposite direction.
Illusions highlight the intricate and sometimes imperfect nature of our perceptual
system. They serve as valuable insights into how our senses, cognition, and brain col-
laborate to generate our perception of the world, reminding us that our perception is not
always a direct reflection of reality.

3.1.3 Perceiving

The perceiving process of human beings involves several stages: sensation trans-
duction, perception, interpretation, integration, and action.
Sensation: It starts with the stimulation of our sensory organs (such as the eyes,
ears, nose, skin, and taste buds) by external stimuli in the environment. These stimuli
can be in the form of light, sound waves, chemicals, temperature, or pressure.
Transduction: Once the sensory organs receive the stimuli, they convert them into
electrical signals that can be processed by the brain. This process is known as transduc-
tion.
Perception: The electrical signals generated by the sensory organs are sent to the
brain, where they are interpreted and organized into meaningful information. Percep-
tion involves the brain’s ability to select, organize, and interpret these signals based on
previous experiences, knowledge, and expectations.
Interpretation: The brain compares the sensory information with stored knowl-

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