Exam 19: Consciousness

In the absence of actual visual stimulation, V1 activity during the conscious experience of visual detection (i.e., "false alarms") provides evidence for what?

The strength and complexity of connectivity between anatomically distal regions in the brain is most strongly associated with one's position along which axis of the 2-D depiction of states of consciousness?

Which of the following is a state of unarousable unconsciousness, including a failure to open the eyes?

What does the measure of dimensional activation (D_a) index, and how does it relate to level of alertness?

What differentiates coma from vegetative state from locked-in syndrome?

How has backward masking of words been used to study consciousness? What do results show about conscious experience vs. our brains' reaction to the stimuli we receive?

Global Workspace Theory allows for graded levels of consciousness?

Does the level activity in V1 more closely reflect what as actually happened in visual environment or what one thinks has happened in the visual environment? Provide evidence for your answer.

What theory of consciousness motivated the development of the perturbational complexity index?

What evidence is there that the constructs of consciousness and attention can be dissociated?

Which two neurotransmitters released from the pons and projecting to the thalamus are critical to arousal?

Somebody with locked-in syndrome would not be aware of their surroundings?

Describe the similarities and differences between the Global Workspace and Recurrent Processing theories of consciousness.

Why is it that we can't move during REM sleep?

The _____ frequency band is associated with the transition from wakefulness to sleep, and _____ frequencies with deep sleep.

How has TMS been used to assess different states of consciousness? What does it show?

One can think of states of consciousness as falling along two dimensions, physiological arousal and level of awareness. What is the most likely state of someone who is high along the physiological-arousal dimension, but low along the level-of-awareness dimension?

What are two critical physiological signatures of increased conscious awareness? Give examples of how each has been demonstrated.

Give an example of experimental evidence that people with locked-in syndrome are aware of their surroundings.

Describe the stages of sleep, including the brain rhythms and arousability associated with each.