Answer and Explanation:
The correct answer is b) Our brains cannot decide on just one interpretation of a picture.
When we perceive reversible figures, it is because our brains are unable to settle on a single interpretation of the picture. Reversible figures are visual stimuli that can be perceived in multiple ways, often switching between different interpretations. This phenomenon occurs due to the complex nature of visual processing in our brains.
Our brains rely on a combination of sensory information and prior knowledge to interpret visual stimuli. However, in the case of reversible figures, the visual information may be ambiguous or contain conflicting cues, making it difficult for the brain to settle on a single interpretation. As a result, our perception may oscillate between different interpretations, causing the figure to appear reversible.
For example, the famous "Necker cube" is a classic reversible figure. It is a two-dimensional drawing of a cube that can be perceived as either facing upward or downward, depending on how the brain processes the visual cues. Despite the fixed nature of the drawing, our brain's interpretation can alternate between the two orientations.
The phenomenon of reversible figures highlights the intricate workings of our visual system and the role of perceptual ambiguity. It demonstrates that perception is not solely based on the information received by our senses but is also influenced by cognitive processes, such as attention, memory, and interpretation.