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Full-Text Articles in Psychology

Relative Reward Effects On Operant Behavior: Incentive Contrast,Induction And Variety Effects, Howard Cromwell May 2015

Relative Reward Effects On Operant Behavior: Incentive Contrast,Induction And Variety Effects, Howard Cromwell

Howard Casey Cromwell

Comparing different rewards automatically produces dynamic relative outcome effects on behavior. Eachnew outcome exposure is to an updated version evaluated relative to alternatives. Relative reward effectsinclude incentive contrast, positive induction and variety effects. The present study utilized a novelbehavioral design to examine relative reward effects on a chain of operant behavior using auditory cues.Incentive contrast is the most often examined effect and focuses on increases or decreases in behavioralperformance after value upshifts (positive) or downshifts (negative) relative to another outcome. Weexamined the impact of comparing two reward outcomes in a repeated measures design with three ses-sions: a single outcome and …


The Diverse Neurogeography Of Emotional Experience: Form Follows Function, Christoper Sharpley, Vicki Bitsika Dec 2010

The Diverse Neurogeography Of Emotional Experience: Form Follows Function, Christoper Sharpley, Vicki Bitsika

Vicki Bitsika

The experience of emotion underlies emotional expression and consequent action. Although several theoretical models of emotion have suggested that emotional expression is reciprocally involved with sensory inputs and behavioural responses to environmental stimuli, these discussions have largely focused upon fear and its survival value to the organism. By describing research studies across a wide range of emotions and the specific brain regions that are associated with those emotions, this review raises the hypothesis that the “form” of emotional experience neurogeography has followed the “function” associated with developing complex emotional and behavioural responses to challenging environmental stimuli. This separation of emotions …


An Increase In Stimulus Arousal Has Differential Effects On The Processing Speed Of Pleasant And Unpleasant Stimuli, Helena Purkis, Ottmar Lipp, Mark Edwards, Rebecca Barnes Aug 2010

An Increase In Stimulus Arousal Has Differential Effects On The Processing Speed Of Pleasant And Unpleasant Stimuli, Helena Purkis, Ottmar Lipp, Mark Edwards, Rebecca Barnes

Mark Edwards

The arousal value of a stimulus influences its salience, whereby higher arousal should lead to faster processing. However, in previous research, participants consistently made faster valence judgments for low arousal, pleasant stimuli than for high arousal, pleasant stimuli. The speed of valence and arousal judgments for pictures and words were investigated in three experiments. Valence judgments were faster for low arousal than for high arousal pleasant pictures and for high arousal than for low arousal unpleasant pictures and words. Moreover, arousal judgments were faster for low arousal than high arousal pleasant and for high arousal than low arousal unpleasant pictures …