TY - JOUR T1 - A quantitative interaction between signal detection in attention and reward/aversion behavior JF - bioRxiv DO - 10.1101/032912 SP - 032912 AU - V Viswanathan AU - BW Kim AU - JP Sheppard AU - H Ying AU - K Raman AU - MJ Lee AU - S Lee AU - F Mulhern AU - M Block AU - B Calder AU - D Mortensen AU - AJ Blood AU - HC Breiter AU - Phenotype Genotype Project in Addiction and Mood Disorders Y1 - 2015/01/01 UR - http://biorxiv.org/content/early/2015/11/26/032912.abstract N2 - This study examines how processes such as reward/aversion and attention, which are often studied as independent processes, in fact interact at a systems level. We operationalize attention with a continuous performance task and variables from signal detection theory, and reward/aversion with a keypress task using variables from relative preference theory. We find that while the relationship between reward/aversion and attention is functionally invariant, a power law formulation akin to the Cobb-Douglas production function in economics provides the best model fit and theoretical explanation for the interaction. These results indicate that a decreasing signal-to-noise with signal detection results in higher loss aversion. Furthermore, the estimated exponents for the multiplicative power law suggest capacity constraints to processing for attention and reward/aversion. These results demonstrate a systemic interaction of attention and reward/aversion across subjects, with a quantitative schema raising the hypothesis that mechanistic inference may be possible at the level of behavior alone. ER -