Neurocomputational mechanisms underlying subjective valuation of effort costs
Publication Date
February 24, 2017
Journal
PLOS Biology
Authors
Trevor T.-J. Chong, Matthew Apps, Kathrin Giehl, Annie Sillence, et al
Volume
15
Issue
2
Pages
e1002598
DOI
https://dx.plos.org/10.1371/journal.pbio.1002598
Publisher URL
http://journals.plos.org/plosbiology/article?id=10.1371%2Fjournal.pbio.1002598
Scopus
85014528906
Mendeley
http://www.mendeley.com/research/neurocomputational-mechanisms-underlying-subjective-valuation-effort-costs
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{"title"=>"Neurocomputational mechanisms underlying subjective valuation of effort costs", "type"=>"journal", "authors"=>[{"first_name"=>"Trevor T.J.", "last_name"=>"Chong", "scopus_author_id"=>"23099108400"}, {"first_name"=>"Matthew", "last_name"=>"Apps", "scopus_author_id"=>"37017949200"}, {"first_name"=>"Kathrin", "last_name"=>"Giehl", "scopus_author_id"=>"57189006930"}, {"first_name"=>"Annie", "last_name"=>"Sillence", "scopus_author_id"=>"57192908381"}, {"first_name"=>"Laura L.", "last_name"=>"Grima", "scopus_author_id"=>"56971389400"}, {"first_name"=>"Masud", "last_name"=>"Husain", "scopus_author_id"=>"7201522757"}], "year"=>2017, "source"=>"PLoS Biology", "identifiers"=>{"pui"=>"614656362", "issn"=>"15457885", "isbn"=>"1111111111", "doi"=>"10.1371/journal.pbio.1002598", "scopus"=>"2-s2.0-85014528906", "pmid"=>"28234892", "sgr"=>"85014528906"}, "id"=>"935cdfc3-ad27-3804-80c9-10d66fda84a3", "abstract"=>"In everyday life, we have to decide whether it is worth exerting effort to obtain rewards. Effort can be experienced in different domains, with some tasks requiring significant cognitive demand and others being more physically effortful. The motivation to exert effort for reward is highly subjective and varies considerably across the different domains of behaviour. How-ever, very little is known about the computational or neural basis of how different effort costs are subjectively weighed against rewards. Is there a common, domain-general system of brain areas that evaluates all costs and benefits? Here, we used computational modelling and functional magnetic resonance imaging (fMRI) to examine the mechanisms underlying value processing in both the cognitive and physical domains. Participants were trained on two novel tasks that parametrically varied either cognitive or physical effort. During fMRI, participants indicated their preferences between a fixed low-effort/low-reward option and a variable higher-effort/higher-reward offer for each effort domain. Critically, reward devalua-tion by both cognitive and physical effort was subserved by a common network of areas, including the dorsomedial and dorsolateral prefrontal cortex, the intraparietal sulcus, and the anterior insula. Activity within these domain-general areas also covaried negatively with reward and positively with effort, suggesting an integration of these parameters within these areas. Additionally, the amygdala appeared to play a unique, domain-specific role in pro-cessing the value of rewards associated with cognitive effort. These results are the first to reveal the neurocomputational mechanisms underlying subjective cost–benefit valuation across different domains of effort and provide insight into the multidimensional nature of motivation. Author summary", "link"=>"http://www.mendeley.com/research/neurocomputational-mechanisms-underlying-subjective-valuation-effort-costs", "reader_count"=>94, "reader_count_by_academic_status"=>{"Unspecified"=>5, "Professor > Associate Professor"=>5, "Student > Doctoral Student"=>8, "Researcher"=>19, "Student > Ph. D. Student"=>28, "Student > Postgraduate"=>6, "Student > Master"=>9, "Other"=>5, "Student > Bachelor"=>6, "Lecturer"=>2, "Professor"=>1}, "reader_count_by_user_role"=>{"Unspecified"=>5, "Professor > Associate Professor"=>5, "Student > Doctoral Student"=>8, "Researcher"=>19, "Student > Ph. D. Student"=>28, "Student > Postgraduate"=>6, "Student > Master"=>9, "Other"=>5, "Student > Bachelor"=>6, "Lecturer"=>2, "Professor"=>1}, "reader_count_by_subject_area"=>{"Unspecified"=>11, "Engineering"=>3, "Biochemistry, Genetics and Molecular Biology"=>1, "Agricultural and Biological Sciences"=>3, "Medicine and Dentistry"=>9, "Neuroscience"=>22, "Sports and Recreations"=>1, "Psychology"=>41, "Decision Sciences"=>2, "Economics, Econometrics and Finance"=>1}, "reader_count_by_subdiscipline"=>{"Engineering"=>{"Engineering"=>3}, "Medicine and Dentistry"=>{"Medicine and Dentistry"=>9}, "Neuroscience"=>{"Neuroscience"=>22}, "Decision Sciences"=>{"Decision Sciences"=>2}, "Sports and Recreations"=>{"Sports and Recreations"=>1}, "Psychology"=>{"Psychology"=>41}, "Economics, Econometrics and Finance"=>{"Economics, Econometrics and Finance"=>1}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>3}, "Biochemistry, Genetics and Molecular Biology"=>{"Biochemistry, Genetics and Molecular Biology"=>1}, "Unspecified"=>{"Unspecified"=>11}}, "reader_count_by_country"=>{"United States"=>3, "France"=>1, "Switzerland"=>1}, "group_count"=>8}

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Scopus | Further Information

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