Evaluate the support for one brain area as a "center" for consciousness versus a brain area that serves as an "executive" that coordinates the consciousness network.
What will be an ideal response?
The existing scientific evidence shows that there is no one brain center for consciousness. Instead, consciousness appears to arise from the connections between several different brain areas. Support for this network view of consciousness comes from the observation that gamma oscillations between the thalamus and cortex help coordinate the activity of many different brain areas that are needed for consciousness. Loss of connectivity, as seen in anesthesia, results in reduced cortical brain activity and is associated with a loss of consciousness. Although consciousness arises from the coordinated activity of many brain areas, researchers have identified the claustrum as a probable executive area that coordinates the other areas involved in consciousness. The claustrum has been identified as a possible executive because activation or lesions of this structure have been linked to loss of consciousness, it has connections to and from all of the primary sensory and motor areas of the brain, it is connected to the limbic system, and the connections between this and other structures are high in density.
You might also like to view...
According to sociologist Ralph Turner, which of the following would be an example of the self in a public role?
a. Melissa wonders whether she will fit in with the sales institution where she is interviewing. b. Melissa feels nervous and insecure about interviewing for a sales position since she classifies herself as an introvert. c. Melissa interviews for a job as a salesperson, and tells the interviewer that she is outgoing and ambitious. d. Melissa thinks about her sales interview and is concerned about whether she will perform well as a salesperson if she gets hired for the job.
The biological unfolding of an organism according to its underlying genetic code is called
a. imprinting. b. germination. c. development. d. puberty. e. maturation.
If glutamate-blocking drugs are given after learning a water maze, rats:
a. show equal levels of performance, but do not remember being in the maze before b. Actually swim the maze faster c. Show a detriment in retrieval d. Are no different from control groups
Ken is a 12-year-old boy of average intelligence as indicated by his IQ scores. He loves school and works hard on his homework. Ken has earned straight A's in every subject except math, where he has been achieving grades in the C range. Which of the following statements is correct?
A. Ken does not appear to have a learning disorder because his achievement is consistent with expectations based on his intelligence B. Ken apexars to have a math disorder because his math grade is so far below his other grades C. Ken appears to have math disorder because there is a discrepancy between his intelligence and his achievement in many subjects D. Ken does not appear to have a learning disorder because he has shown that he can achieve when he wants to