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Questions and Answers
What is one reason why human perception is not perfect?
What is one reason why human perception is not perfect?
- Human perception is influenced by the firing of neurons
- Human perception is affected by external noise
- Human perception is hindered by bright lights
- Human perception is inherently noisy (correct)
What is an example of external noise that can hinder perception?
What is an example of external noise that can hinder perception?
- Perceiving a phone ringing when it's not
- Mistaking a lorry for a bus (correct)
- Seeing bright dots and blobs when closing your eyes
- Failing to spot a friend standing right in front of you
Which of the following best describes the concept of signal detection theory?
Which of the following best describes the concept of signal detection theory?
- The theory that human perception is influenced by internal and external noise (correct)
- The theory that human perception is solely affected by internal noise
- The theory that human perception is solely affected by external noise
- The theory that human perception is perfect and without errors
What is the term used in the text to describe the noise occurring inside the visual system?
What is the term used in the text to describe the noise occurring inside the visual system?
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What is an example of perceiving something that was not there, as mentioned in the text?
What is an example of perceiving something that was not there, as mentioned in the text?
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Study Notes
Human Perception Limitations
- One reason human perception is not perfect is because it can be influenced by various factors, making it prone to errors.
External Noise
- An example of external noise that can hinder perception is environmental distractions, such as loud background noise or bright lights.
Signal Detection Theory
- Signal detection theory refers to the process of distinguishing between real and imagined stimuli, where the brain tries to separate the signal (real stimulus) from the noise (background stimuli).
Internal Noise
- The term used to describe the noise occurring inside the visual system is neural noise.
False Perceptions
- An example of perceiving something that was not there is seeing a pattern or shape in a random arrangement of dots, also known as pareidolia.
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