Melly just moved into her first apartment. She is excited to decorate the apartment and make it her own. Her first step is choosing paint colors for the walls. She has a hard time choosing between two different shades of blue, but her friend was able to point out that one was darker and therefore better for a bedroom. In the kitchen, she chose a lemon-yellow paint. Melly had little money for furnishings and ended up with a lumpy chair from her mother and a sofa that was covered in slightly itchy fabric. On her first evening in the apartment, she lit a vanilla-scented candle that reminded her of home. Based on the scenario described, how is Melly using each of the following concepts to help her settle into her new apartment?
• Olfactory bulb
• Sensory adaptation
• Difference threshold
• Brightness
Later that night, Melly gets up to get a drink of water from the kitchen. She does not turn on any lights as she makes her way past stacks of boxes in the living room. Briefly, she is frightened by what looks like a man standing in the corner of the room. But then she realizes that it is only a coat she has thrown on a hook. Based on the scenario described, how do each of the following concepts explain Melly's actions?
• Feature detection
• Dark adaptation
• Top-down processing
