Measuring states of consciousness self report: people describe their inner experiences physiological measures: establish correspondence between bodily states and mental processes (ex: eeg recording) behavioral measures: Divided attention the ability to perform more than one activity at the same time has limits. More difficult when tasks require similar mental resources. Modern psychodynamic views incorporate information-processing concepts from cognitive psych but emphasize that emotional and motivational processes also operate unconsciously and influence behavior. Circadian rhythms: our daily biological clocks regulated by scn (clock) in the brain. 24. 2/24. 8 hour schedule and you would sleep more circadian rhythms influence whether you re a night or morning person. Eegs show brain activity y beta waves: occur when you feel relaxed and drowsy. Stage four y deeper sleep, hard to awaken y regular appearance of very slow and large delta waves y delta waves start occurring more often y occurs when delta waves dominate the eeg pattern y hard to awaken.