PSYX 100 1st Edition Lecture 11 Outline of Last Lecture I Light II The Eye III Trichromatic Theory of Color Vision IV Perception V Gestalt Psychology VI Types of Perception VII Culture Personality Mood Outline of Current Lecture I Consciousness II Consciousness and Brain Activity Current Lecture I Consciousness a Consciousness is an awareness of external events internal sensations yourself as a unique being your thoughts etc b Benefits of consciousness i It allows us to learn new tasks ii It allows us to reflect and plan c Early psychologists struggled with how to study think of the consciousness d Different views of consciousness i Structure Titchner 1 What made up consciousness ii Function James 1 How consciousness was used iii The UNconscious Freud 1 The unconscious rules all we do e Technology in the 1960s allowed scientists to relate brain activity to various states sleeping waking dreaming f Researchers began examining consciousness as it was altered by hypnosis and drugs g Evolutionary roots of consciousness consciousness gives us the ability to problem solve and plan but we do not know exactly why it was developed i This is an area of future research These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute II Consciousness and Brain Activity a Electroencephalograph EEG i How it works electrodes are attached to the surface of the scalp and readings are taken that summarize sub cortical activity in terms of brain waves ii Brain waves differentiated between amplitude and frequency cycles second iii Types of brain waves beta alpha theta delta iv Beta awake 1 REM waves look like beta waves 2 13 24 cycles per second 3 Occurs during normal waking thought and alert problem solving v Alpha deep relaxation blank mind meditation 1 8 12 cycles per second vi Theta light sleep 1 4 7 cycles per second vii Delta deep sleep 1 Less than 4 cycles per second
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