Title Page

Acknowledgements

Abstract

Introduction
        Theories of Peripheral Feedback and Emotion
        The Somatic Marker Hypothesis
                Evidence for the Somatic Marker Hypothesis:
                Individuals with Prefrontal Damage
                The Orbitofrontal Cortex and Decision-Making
        The Somatic Marker Hypothesis: Points of Support/Non-Support
        The Gambling Task: Evidence from Both Orbitofrontal Patients and Normal Subjects
        Problems with the Gambling Task
                Magnitude Differences Between the Good and Bad Decks
                Poor Temporal Resolution for Comparing Knowledge and SCR Differences
                Alternatives to the Somatic Marker Hypothesis
        Experiments
                Experiment 1
                Experiment 2

General Methods
        Subjects
        Materials
        Apparatus and Skin Conductance Response Recording
        Card Task and Recording of Skin Conductance Responses
        Task Instructions

Experiment 1
         Method
                Participants
                Card Scheme
                Differences with the Previous Gambling Task Studies
        Results and Discussion
                Behavioral Results
                        Card Choice
                        Verbal Responses
                SCRs
                        Anticipatory SCRs
                        Reward and Punishment SCRs
                Experiment 1 and Previous Results