Answer:
It seems like you've provided a series of questions or statements related to a psychology course or video. I can help provide answers based on the information provided:
The girls are likely laughing because "their expectations were violated." Much humor often arises from situations where our expectations are not met or when there is an element of surprise or incongruity.
Genetic makeup, personality traits, and attitudes are known as "internal" factors, while external things like the environment and sensory information are known as "external" factors.
Studying brain waves relates to the "biological" level of analysis. Most psychologists study the "psychological" level of analysis, which focuses on behavior, cognition, and emotions.
To detect a liar, you are most likely to catch them by "studying body language." Paying attention to non-verbal cues, such as body language and facial expressions, can often reveal signs of deception.
Investigating large units of behavior operates at the "social" level of analysis. This level involves studying behavior in social contexts and interactions.
The specific results for white and black respondents are not provided in the text, so I cannot answer this question.
Neuroscientist Elizabeth Phelps found that "those who showed a strong amygdala activation for black faces also showed a preference for white faces on the IAT." This suggests a link between brain activity in the amygdala (associated with emotions) and implicit biases.
Wundt emphasized the study of "consciousness." Wilhelm Wundt is often regarded as the founder of psychology, and he focused on studying conscious experiences and the structure of consciousness in his work.
If you have any more questions or need further clarification, feel free to ask.