is the process by which sensory receptors and nervous system receive and represent stimulus energies in our environment. is the process by which the brain organizes and interprets sensory information, transforming it into meaningful objects and events. Define - Bottom-Up Processing - Top-Down Processing - Absolute Threshold - True or False - Absolute Threshold is the minimal stimulus energy needed to detect a particular stimulus 50% of the time. True or False - Subliminal thoughts are above an individuals absolute threshold for conscience awareness. __ is the minimum difference between two stimuli required for detection 50 percent of the time. What are three characteristics of sensory adaptation? 1. 2.

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is the process by which sensory receptors and nervous system receive and represent stimulus energies in our environment. is the process by which the brain organizes and interprets sensory information, transforming it into meaningful objects and events. Define - Bottom-Up Processing - Top-Down Processing - Absolute Threshold - True or False - Absolute Threshold is the minimal stimulus energy needed to detect a particular stimulus 50% of the time. True or False - Subliminal thoughts are above an individuals absolute threshold for conscience awareness. __ is the minimum difference between two stimuli required for detection 50 percent of the time. What are three characteristics of sensory adaptation? 1. 2.

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Define:1. **Bottom-Up Processing:** - **Definition:** Bottom-up processing is the sensory analysis that begins at the entry level with the information received by the sensory receptors. It involves the construction of perceptions from individual pieces of sensory information.2. **Top-Down Processing:** - **Definition:** Top-down processing is the process by which the brain organizes and interprets sensory information, using context and prior knowledge to influence perception. It involves the application of higher-level cognitive processes to interpret and make sense of incoming sensory information.3. **Absolute Threshold:** - **Definition:** Absolute threshold is the minimum amount of stimulus energy needed to detect a particular stimulus reliably. It is the point at which a stimulus is detected at least 50% of the time.**True or False: Absolute Threshold is the minimal stimulus energy needed to detect a particular stimulus 50% of the time.** - **True****True or False: Subliminal thoughts are above an individual's absolute threshold for conscious awareness.** - **False**4. **Difference Threshold (or Just Noticeable Difference):** - **Definition:** Difference threshold is the minimum difference between two stimuli required for detection 50 percent of the time. It is also known as the just noticeable difference (JND).**Three characteristics of sensory adaptation:**1. **Decreased Sensitivity:** Sensory adaptation involves a reduction in sensitivity to a constant or unchanging stimulus over time.2. **Selective Adaptation:** Sensory adaptation is often specific to the particular stimulus, meaning that adaptation occurs more strongly for the specific sensory input to which an individual is exposed.3. **Enhanced Sensitivity to Change:** While adapting to a constant stimulus, sensory systems become more sensitive to changes in the environment, allowing organisms to focus on new or significant stimuli.

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