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Mesolimbic dopamine D2 receptors and neural representations of subjective value.

Castrellon JJ, Young JS, Dang LC, Cowan RL, Zald DH, Samanez-Larkin GR.

Sci Rep. 2019 Dec 27;9(1):20229. doi: 10.1038/s41598-019-56858-1.


Exercise, Dopamine, and Cognition in Older Age.

Juarez EJ, Samanez-Larkin GR.

Trends Cogn Sci. 2019 Dec;23(12):986-988. doi: 10.1016/j.tics.2019.10.006. Epub 2019 Nov 5.


Reproducibility of the correlative triad among aging, dopamine receptor availability, and cognition.

Juarez EJ, Castrellon JJ, Green MA, Crawford JL, Seaman KL, Smith CT, Dang LC, Matuskey D, Morris ED, Cowan RL, Zald DH, Samanez-Larkin GR.

Psychol Aging. 2019 Nov;34(7):921-932. doi: 10.1037/pag0000403. Epub 2019 Oct 7.


Age Differences in Intertemporal Choice: The Role of Task Type, Outcome Characteristics, and Covariates.

Löckenhoff CE, Samanez-Larkin GR.

J Gerontol B Psychol Sci Soc Sci. 2020 Jan 1;75(1):85-95. doi: 10.1093/geronb/gbz097.


Reduced serotonin receptors and transporters in normal aging adults: a meta-analysis of PET and SPECT imaging studies.

Karrer TM, McLaughlin CL, Guaglianone CP, Samanez-Larkin GR.

Neurobiol Aging. 2019 Aug;80:1-10. doi: 10.1016/j.neurobiolaging.2019.03.021. Epub 2019 Apr 5.


Differential regional decline in dopamine receptor availability across adulthood: Linear and nonlinear effects of age.

Seaman KL, Smith CT, Juarez EJ, Dang LC, Castrellon JJ, Burgess LL, San Juan MD, Kundzicz PM, Cowan RL, Zald DH, Samanez-Larkin GR.

Hum Brain Mapp. 2019 Jul;40(10):3125-3138. doi: 10.1002/hbm.24585. Epub 2019 Apr 1.


Ventral striatal dopamine transporter availability is associated with lower trait motor impulsivity in healthy adults.

Smith CT, San Juan MD, Dang LC, Katz DT, Perkins SF, Burgess LL, Cowan RL, Manning HC, Nickels ML, Claassen DO, Samanez-Larkin GR, Zald DH.

Transl Psychiatry. 2018 Dec 7;8(1):269. doi: 10.1038/s41398-018-0328-y.


Individual Differences in Dopamine Are Associated with Reward Discounting in Clinical Groups But Not in Healthy Adults.

Castrellon JJ, Seaman KL, Crawford JL, Young JS, Smith CT, Dang LC, Hsu M, Cowan RL, Zald DH, Samanez-Larkin GR.

J Neurosci. 2019 Jan 9;39(2):321-332. doi: 10.1523/JNEUROSCI.1984-18.2018. Epub 2018 Nov 16.


Lack of consistent sex differences in D-amphetamine-induced dopamine release measured with [18F]fallypride PET.

Smith CT, Dang LC, Burgess LL, Perkins SF, San Juan MD, Smith DK, Cowan RL, Le NT, Kessler RM, Samanez-Larkin GR, Zald DH.

Psychopharmacology (Berl). 2019 Feb;236(2):581-590. doi: 10.1007/s00213-018-5083-5. Epub 2018 Oct 22.


Age Effects in Sequence-Construction for a Continuous Cognitive Task: Similar Sequence-Trends but Fewer Switch-Points.

Löckenhoff CE, Rutt JL, Samanez-Larkin GR, Gallagher C, O'Donoghue T, Reyna VF.

J Gerontol B Psychol Sci Soc Sci. 2018 Aug 10. doi: 10.1093/geronb/gby090. [Epub ahead of print]


Distinct neural circuits support incentivized inhibition.

Leong JK, MacNiven KH, Samanez-Larkin GR, Knutson B.

Neuroimage. 2018 Sep;178:435-444. doi: 10.1016/j.neuroimage.2018.05.055. Epub 2018 May 24.


Individual differences in loss aversion and preferences for skewed risks across adulthood.

Seaman KL, Green MA, Shu S, Samanez-Larkin GR.

Psychol Aging. 2018 Jun;33(4):654-659. doi: 10.1037/pag0000261. Epub 2018 May 17.


Individual differences in dopamine D2 receptor availability correlate with reward valuation.

Dang LC, Samanez-Larkin GR, Castrellon JJ, Perkins SF, Cowan RL, Zald DH.

Cogn Affect Behav Neurosci. 2018 Aug;18(4):739-747. doi: 10.3758/s13415-018-0601-9.


Emotional arousal may increase susceptibility to fraud in older and younger adults.

Kircanski K, Notthoff N, DeLiema M, Samanez-Larkin GR, Shadel D, Mottola G, Carstensen LL, Gotlib IH.

Psychol Aging. 2018 Mar;33(2):325-337. doi: 10.1037/pag0000228.


Subjective value representations during effort, probability and time discounting across adulthood.

Seaman KL, Brooks N, Karrer TM, Castrellon JJ, Perkins SF, Dang LC, Hsu M, Zald DH, Samanez-Larkin GR.

Soc Cogn Affect Neurosci. 2018 May 1;13(5):449-459. doi: 10.1093/scan/nsy021.


Emotion identification across adulthood using the Dynamic FACES database of emotional expressions in younger, middle aged, and older adults.

Holland CAC, Ebner NC, Lin T, Samanez-Larkin GR.

Cogn Emot. 2019 Mar;33(2):245-257. doi: 10.1080/02699931.2018.1445981. Epub 2018 Mar 29.


FTO affects food cravings and interacts with age to influence age-related decline in food cravings.

Dang LC, Samanez-Larkin GR, Smith CT, Castrellon JJ, Perkins SF, Cowan RL, Claassen DO, Zald DH.

Physiol Behav. 2018 Aug 1;192:188-193. doi: 10.1016/j.physbeh.2017.12.013. Epub 2017 Dec 9.


Partial-volume correction increases estimated dopamine D2-like receptor binding potential and reduces adult age differences.

Smith CT, Crawford JL, Dang LC, Seaman KL, San Juan MD, Vijay A, Katz DT, Matuskey D, Cowan RL, Morris ED, Zald DH, Samanez-Larkin GR.

J Cereb Blood Flow Metab. 2019 May;39(5):822-833. doi: 10.1177/0271678X17737693. Epub 2017 Nov 1.


Individual differences in skewed financial risk-taking across the adult life span.

Seaman KL, Leong JK, Wu CC, Knutson B, Samanez-Larkin GR.

Cogn Affect Behav Neurosci. 2017 Dec;17(6):1232-1241. doi: 10.3758/s13415-017-0545-5.


Preferences for Temporal Sequences of Real Outcomes Differ Across Domains but do not Vary by Age.

Löckenhoff CE, Rutt JL, Samanez-Larkin GR, O'Donoghue T, Reyna VF.

J Gerontol B Psychol Sci Soc Sci. 2019 Feb 15;74(3):430-439. doi: 10.1093/geronb/gbx094.


Spontaneous Eye Blink Rate (EBR) Is Uncorrelated with Dopamine D2 Receptor Availability and Unmodulated by Dopamine Agonism in Healthy Adults.

Dang LC, Samanez-Larkin GR, Castrellon JJ, Perkins SF, Cowan RL, Newhouse PA, Zald DH.

eNeuro. 2017 Sep 18;4(5). pii: ENEURO.0211-17.2017. doi: 10.1523/ENEURO.0211-17.2017. eCollection 2017 Sep-Oct.


Disrupted Prefrontal Regulation of Striatal Subjective Value Signals in Psychopathy.

Hosking JG, Kastman EK, Dorfman HM, Samanez-Larkin GR, Baskin-Sommers A, Kiehl KA, Newman JP, Buckholtz JW.

Neuron. 2017 Jul 5;95(1):221-231.e4. doi: 10.1016/j.neuron.2017.06.030.


Reduced dopamine receptors and transporters but not synthesis capacity in normal aging adults: a meta-analysis.

Karrer TM, Josef AK, Mata R, Morris ED, Samanez-Larkin GR.

Neurobiol Aging. 2017 Sep;57:36-46. doi: 10.1016/j.neurobiolaging.2017.05.006. Epub 2017 May 12.


Reduced effects of age on dopamine D2 receptor levels in physically active adults.

Dang LC, Castrellon JJ, Perkins SF, Le NT, Cowan RL, Zald DH, Samanez-Larkin GR.

Neuroimage. 2017 Mar 1;148:123-129. doi: 10.1016/j.neuroimage.2017.01.018. Epub 2017 Jan 10.


Dread sensitivity in decisions about real and imagined electrical shocks does not vary by age.

Löckenhoff CE, Rutt JL, Samanez-Larkin GR, O'Donoghue T, Reyna VF, Ganzel B.

Psychol Aging. 2016 Dec;31(8):890-901. doi: 10.1037/pag0000136.


Adult age differences in decision making across domains: Increased discounting of social and health-related rewards.

Seaman KL, Gorlick MA, Vekaria KM, Hsu M, Zald DH, Samanez-Larkin GR.

Psychol Aging. 2016 Nov;31(7):737-746. doi: 10.1037/pag0000131.


Associations between dopamine D2 receptor availability and BMI depend on age.

Dang LC, Samanez-Larkin GR, Castrellon JJ, Perkins SF, Cowan RL, Zald DH.

Neuroimage. 2016 Sep;138:176-183. doi: 10.1016/j.neuroimage.2016.05.044. Epub 2016 May 18.


The Effects of Methylphenidate on Resting-State Functional Connectivity of the Basal Nucleus of Meynert, Locus Coeruleus, and Ventral Tegmental Area in Healthy Adults.

Kline RL, Zhang S, Farr OM, Hu S, Zaborszky L, Samanez-Larkin GR, Li CS.

Front Hum Neurosci. 2016 Apr 18;10:149. doi: 10.3389/fnhum.2016.00149. eCollection 2016.


Stability and change in risk-taking propensity across the adult life span.

Josef AK, Richter D, Samanez-Larkin GR, Wagner GG, Hertwig R, Mata R.

J Pers Soc Psychol. 2016 Sep;111(3):430-50. doi: 10.1037/pspp0000090. Epub 2016 Jan 28.


White-Matter Tract Connecting Anterior Insula to Nucleus Accumbens Correlates with Reduced Preference for Positively Skewed Gambles.

Leong JK, Pestilli F, Wu CC, Samanez-Larkin GR, Knutson B.

Neuron. 2016 Jan 6;89(1):63-9. doi: 10.1016/j.neuron.2015.12.015.


Decision making in the ageing brain: changes in affective and motivational circuits.

Samanez-Larkin GR, Knutson B.

Nat Rev Neurosci. 2015 May;16(5):278-89. doi: 10.1038/nrn3917. Epub 2015 Apr 15. Review.


Caudate asymmetry is related to attentional impulsivity and an objective measure of ADHD-like attentional problems in healthy adults.

Dang LC, Samanez-Larkin GR, Young JS, Cowan RL, Kessler RM, Zald DH.

Brain Struct Funct. 2016 Jan;221(1):277-86. doi: 10.1007/s00429-014-0906-6. Epub 2014 Oct 1.


Mechanisms of motivation-cognition interaction: challenges and opportunities.

Braver TS, Krug MK, Chiew KS, Kool W, Westbrook JA, Clement NJ, Adcock RA, Barch DM, Botvinick MM, Carver CS, Cools R, Custers R, Dickinson A, Dweck CS, Fishbach A, Gollwitzer PM, Hess TM, Isaacowitz DM, Mather M, Murayama K, Pessoa L, Samanez-Larkin GR, Somerville LH; MOMCAI group.

Cogn Affect Behav Neurosci. 2014 Jun;14(2):443-72. doi: 10.3758/s13415-014-0300-0. Review.


Adult age differences in frontostriatal representation of prediction error but not reward outcome.

Samanez-Larkin GR, Worthy DA, Mata R, McClure SM, Knutson B.

Cogn Affect Behav Neurosci. 2014 Jun;14(2):672-82. doi: 10.3758/s13415-014-0297-4.


Complementary approaches to the study of decision making across the adult life span.

Samanez-Larkin GR, Li SC, Ridderinkhof KR.

Front Neurosci. 2013 Dec 20;7:243. doi: 10.3389/fnins.2013.00243. eCollection 2013. No abstract available.


Caudate responses to reward anticipation associated with delay discounting behavior in healthy youth.

Benningfield MM, Blackford JU, Ellsworth ME, Samanez-Larkin GR, Martin PR, Cowan RL, Zald DH.

Dev Cogn Neurosci. 2014 Jan;7:43-52. doi: 10.1016/j.dcn.2013.10.009. Epub 2013 Nov 7.


Affective traits link to reliable neural markers of incentive anticipation.

Wu CC, Samanez-Larkin GR, Katovich K, Knutson B.

Neuroimage. 2014 Jan 1;84:279-89. doi: 10.1016/j.neuroimage.2013.08.055. Epub 2013 Aug 31.


Financial Decision Making and the Aging Brain.

Samanez-Larkin GR.

APS Obs. 2013 Jun;26(5):30-33. No abstract available.


Mechanisms of age-related decline in memory search across the adult life span.

Hills TT, Mata R, Wilke A, Samanez-Larkin GR.

Dev Psychol. 2013 Dec;49(12):2396-404. doi: 10.1037/a0032272. Epub 2013 Apr 15.


Moment-to-moment brain signal variability: a next frontier in human brain mapping?

Garrett DD, Samanez-Larkin GR, MacDonald SW, Lindenberger U, McIntosh AR, Grady CL.

Neurosci Biobehav Rev. 2013 May;37(4):610-24. doi: 10.1016/j.neubiorev.2013.02.015. Epub 2013 Mar 1. Review.


Serotonergic genotypes, neuroticism, and financial choices.

Kuhnen CM, Samanez-Larkin GR, Knutson B.

PLoS One. 2013;8(1):e54632. doi: 10.1371/journal.pone.0054632. Epub 2013 Jan 30.


A thalamocorticostriatal dopamine network for psychostimulant-enhanced human cognitive flexibility.

Samanez-Larkin GR, Buckholtz JW, Cowan RL, Woodward ND, Li R, Ansari MS, Arrington CM, Baldwin RM, Smith CE, Treadway MT, Kessler RM, Zald DH.

Biol Psychiatry. 2013 Jul 15;74(2):99-105. doi: 10.1016/j.biopsych.2012.10.032. Epub 2012 Dec 27.


Frontostriatal white matter integrity mediates adult age differences in probabilistic reward learning.

Samanez-Larkin GR, Levens SM, Perry LM, Dougherty RF, Knutson B.

J Neurosci. 2012 Apr 11;32(15):5333-7. doi: 10.1523/JNEUROSCI.5756-11.2012.


Age Differences in Striatal Delay Sensitivity during Intertemporal Choice in Healthy Adults.

Samanez-Larkin GR, Mata R, Radu PT, Ballard IC, Carstensen LL, McClure SM.

Front Neurosci. 2011 Nov 16;5:126. doi: 10.3389/fnins.2011.00126. eCollection 2011.


Introduction to decision making over the life span.

Samanez-Larkin GR.

Ann N Y Acad Sci. 2011 Oct;1235:v-vi. doi: 10.1111/j.1749-6632.2011.06252.x. No abstract available.


Age differences in risky choice: a meta-analysis.

Mata R, Josef AK, Samanez-Larkin GR, Hertwig R.

Ann N Y Acad Sci. 2011 Oct;1235:18-29. doi: 10.1111/j.1749-6632.2011.06200.x.


Gain and loss learning differentially contribute to life financial outcomes.

Knutson B, Samanez-Larkin GR, Kuhnen CM.

PLoS One. 2011;6(9):e24390. doi: 10.1371/journal.pone.0024390. Epub 2011 Sep 6.


Emotional experience improves with age: evidence based on over 10 years of experience sampling.

Carstensen LL, Turan B, Scheibe S, Ram N, Ersner-Hershfield H, Samanez-Larkin GR, Brooks KP, Nesselroade JR.

Psychol Aging. 2011 Mar;26(1):21-33. doi: 10.1037/a0021285.


Expected value information improves financial risk taking across the adult life span.

Samanez-Larkin GR, Wagner AD, Knutson B.

Soc Cogn Affect Neurosci. 2011 Apr;6(2):207-17. doi: 10.1093/scan/nsq043. Epub 2010 May 25.


Variability in nucleus accumbens activity mediates age-related suboptimal financial risk taking.

Samanez-Larkin GR, Kuhnen CM, Yoo DJ, Knutson B.

J Neurosci. 2010 Jan 27;30(4):1426-34. doi: 10.1523/JNEUROSCI.4902-09.2010.

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