Table A1.
Literature search for imaging studies of reward anticipation.
| No. | Article | NAcc | aINS | MultR | Mech |
|---|---|---|---|---|---|
| 1 | Abler et al. (2006) | X | – | – | – |
| 2 | Abler et al. (2007) | X | X | – | – |
| 3 | Adcock et al. (2006) | X | X | – | – |
| 4 | Beck et al. (2009) | X | X | – | – |
| 5 | Bjork et al. (2004) | X | X | – | – |
| 6 | Bjork and Hommer (2007) | X | X | – | – |
| 7 | Breiter et al. (2001) | X | – | – | – |
| 8 | Carter et al. (2009) | X | X | – | – |
| 9 | Cohen et al. (2005) | – | X | – | – |
| 10 | Cooper and Knutson (2008) | X | X | – | – |
| 11 | Cooper et al. (2009) | X | – | – | – |
| 12 | Delgado et al. (2000) | X | X | – | – |
| 13 | Dillon et al. (2008) | X | – | – | – |
| 14 | Juckel et al. (2006) | X | – | – | – |
| 15 | Kim et al. (2011) | – | X | X | – |
| 16 | Kirsch et al. (2003) | X | – | – | – |
| 17 | Knutson et al. (2001a) | X | – | – | – |
| 18 | Knutson et al. (2001b) | X | X | – | – |
| 19 | Knutson et al. (2003) | X | X | – | – |
| 20 | Knutson et al. (2004) | X | X | – | – |
| 21 | Knutson et al. (2008) | X | – | – | – |
| 22 | Luo et al. (2009) | – | X | – | – |
| 23 | Nestor et al. (2010) | X | – | – | – |
| 24 | Rademacher et al. (2010) | X | X | X | – |
| 25 | Ramnani and Miall (2003) | X | – | – | – |
| 26 | Samanez-Larkin et al. (2007) | X | X | – | – |
| 27 | Schlagenhauf et al. (2008) | X | – | – | – |
| 28 | Schmack et al. (2008) | X | – | – | – |
| 29 | Spreckelmeyer et al. (2009) | X | X | X | – |
| 30 | Staudinger et al. (2011) | X | – | – | – |
| 31 | Strohle et al. (2008) | X | – | – | – |
| 32 | Villafuerte et al. (2011) | – | X | – | – |
| 33 | Waltz et al. (2010) | X | – | – | – |
| 34 | Wrase et al. (2007a) | X | X | – | – |
| 35 | Wrase et al. (2007b) | X | – | – | – |
Our core result (Figure 6 in the main text) provides evidence for a mediation effect between NAcc and aINS that involves relative motivation across two reward modalities (money and candy). These two brain regions are frequently implicated in studies that employ similar paradigms (Knutson and Greer, 2008). We collected fMRI literature on reward anticipation to determine the uniqueness of our findings, focusing on reward anticipation contrasts for positive rewards that implicated NAcc (first column), aINS (second column), and/or included multiple reward modalities (MultR column). We also searched for papers that include joint analyses (e.g., connectivity, mediation) that make claims about a mechanistic relationship (Mech column) between the two regions. An “X” means present, and an “–” indicates not present.