Motivated for near impossibility: How task type and reward modulate task enjoyment and the striatal activation for extremely difficult task

Sakaki, Michiko ¹ ; Meliss, Stefanie ² ; Murayama, Kou ¹ ; Yomogida, Yukihito ³ ; Matsumori, Kaosu ⁴ ; Sugiura, Ayaka; Matsumoto, Madoka; Matsumoto, Kenji

¹  Hector Research Institute of Education Sciences and Psychology, University of Tübingen, 72072 Tübingen, Germany 
²  School of Psychology and Clinical Language Sciences, University of Reading, Reading, Berkshire RG6 6AH, UK 
³  Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Kodaira, Tokyo 187-8551, Japan 
⁴  Brain Science Institute, Tamagawa University, 6-1-1, Tamagawa-gakuen, Machida, Tokyo 194-8610, Japan