[Campbell Biology P.1158] The text uses the analogy of a tree falling in a forest to illustra... | Practice Question

The text uses the analogy of a tree falling in a forest to illustrate the concept of perception. Which of the following statements best aligns with the text's explanation of perception?

  • A: The physical pressure waves generated by the falling tree inherently constitute 'sound,' regardless of whether an animal is present to hear them.
  • B: Perceptions, such as sounds, are 'constructions formed in the brain' and do not exist as such outside of the brain's interpretation.
  • C: The brain passively receives all sensory data, and its role is merely to relay this objective information to consciousness without any active construction.
  • D: The distinction between different stimuli (e.g., sight vs. sound) is determined by the unique properties of action potentials generated by various sensory receptors.

Explanation

The text states: 'Perceptions—such as colors, smells, sounds, and tastes—are constructions formed in the brain and do not exist outside it. So if a tree falls and no animal is present to hear it, is there a sound? The falling tree certainly produces pressure waves in the air, but if sound is defined as a perception, then there is no sound unless an animal senses the waves and its brain perceives them.' This directly supports that sound, as a perception, is a brain construct.