FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3036682709> ?p ?o ?g. }

• W3036682709 abstract "Abstract Adaptive human behavior builds on prior knowledge about stimulus relevance. Some environments cue such knowledge more than others. To behave adaptively, observers need to flexibly adjust sensory processing to the degree of contextual uncertainty. We hypothesize that the neural basis for these perceptual adjustments consists in the ability of the cortical network to switch back and forth between a rhythmic state that serves selective processing, and a state of elevated asynchronous neural activity that boosts sensitivity. To test this hypothesis, we recorded non-invasive EEG and fMRI BOLD dynamics while 47 healthy young adults performed a parametric visual attention task with varying numbers of relevant stimulus features. Drift-diffusion modeling of response behavior and electrophysiological signatures revealed that greater contextual uncertainty lowered the rate of evidence accumulation while increasing thalamocortical engagement, with concomitant increments in cortical excitability and pupil dilation. As predicted, uncertainty-related processing adjustments were expressed as switches between a state of phase-dependent excitability modulation in the alpha band and a state of increased irregularity of brain dynamics. We conclude that humans dynamically adjust sensory excitability according to the processing fidelity afforded by an upcoming choice, and that neuromodulatory processes involving the thalamus play a key role in adjusting excitability in the human brain. Highlights With increasing contextual uncertainty, human cortical networks shift from a state of phase-dependent excitability modulation in the alpha band into a state of elevated excitatory tone and asynchronous neural activity Evidence based on joint modeling of behavior, EEG, and BOLD suggests that neuromodulatory processes involving the thalamus regulate these shifts Theoretical and empirical considerations suggest contributions of both frequency-specific and aperiodic neural dynamics to human behavior" @default.
• W3036682709 created "2020-06-25" @default.
• W3036682709 creator A5008713435 @default.
• W3036682709 creator A5061580552 @default.
• W3036682709 creator A5084761067 @default.
• W3036682709 date "2020-06-23" @default.
• W3036682709 modified "2023-10-16" @default.
• W3036682709 title "Thalamocortical excitability adjustments guide human perception under uncertainty" @default.
• W3036682709 cites W1447100242 @default.
• W3036682709 cites W1480668978 @default.
• W3036682709 cites W1484790805 @default.
• W3036682709 cites W1519578210 @default.
• W3036682709 cites W1570899238 @default.
• W3036682709 cites W1607240981 @default.
• W3036682709 cites W1841190780 @default.
• W3036682709 cites W1862394037 @default.
• W3036682709 cites W1899637700 @default.
• W3036682709 cites W1902335101 @default.
• W3036682709 cites W1952601298 @default.
• W3036682709 cites W1968019923 @default.
• W3036682709 cites W1970126268 @default.
• W3036682709 cites W1973254033 @default.
• W3036682709 cites W1973776237 @default.
• W3036682709 cites W1973845142 @default.
• W3036682709 cites W1975427503 @default.
• W3036682709 cites W1975851634 @default.
• W3036682709 cites W1981804517 @default.
• W3036682709 cites W1983818070 @default.
• W3036682709 cites W1983927442 @default.
• W3036682709 cites W1984202832 @default.
• W3036682709 cites W1985147801 @default.
• W3036682709 cites W1988357356 @default.
• W3036682709 cites W1989893274 @default.
• W3036682709 cites W1992537937 @default.
• W3036682709 cites W1993042337 @default.
• W3036682709 cites W1996032190 @default.
• W3036682709 cites W1996864540 @default.
• W3036682709 cites W2003309602 @default.
• W3036682709 cites W2005238835 @default.
• W3036682709 cites W2006096283 @default.
• W3036682709 cites W2008497075 @default.
• W3036682709 cites W2011131455 @default.
• W3036682709 cites W2011942809 @default.
• W3036682709 cites W2016954751 @default.
• W3036682709 cites W2017108196 @default.
• W3036682709 cites W2019885188 @default.
• W3036682709 cites W2020745232 @default.
• W3036682709 cites W2023869733 @default.
• W3036682709 cites W2025687881 @default.
• W3036682709 cites W2026478689 @default.
• W3036682709 cites W2027484750 @default.
• W3036682709 cites W2030440331 @default.
• W3036682709 cites W2032202532 @default.
• W3036682709 cites W2032345561 @default.
• W3036682709 cites W2036592327 @default.
• W3036682709 cites W2037641328 @default.
• W3036682709 cites W2045968318 @default.
• W3036682709 cites W2047463581 @default.
• W3036682709 cites W2048524988 @default.
• W3036682709 cites W2050506578 @default.
• W3036682709 cites W2052540595 @default.
• W3036682709 cites W2061874720 @default.
• W3036682709 cites W2065292719 @default.
• W3036682709 cites W2066741963 @default.
• W3036682709 cites W2067058552 @default.
• W3036682709 cites W2067059950 @default.
• W3036682709 cites W2072652550 @default.
• W3036682709 cites W2072799373 @default.
• W3036682709 cites W2073309755 @default.
• W3036682709 cites W2078099808 @default.
• W3036682709 cites W2080275784 @default.
• W3036682709 cites W2083284869 @default.
• W3036682709 cites W2084668768 @default.
• W3036682709 cites W2086338669 @default.
• W3036682709 cites W2090060263 @default.
• W3036682709 cites W2095104776 @default.
• W3036682709 cites W2098182568 @default.
• W3036682709 cites W2100111273 @default.
• W3036682709 cites W2100733433 @default.
• W3036682709 cites W2102454701 @default.
• W3036682709 cites W2105957367 @default.
• W3036682709 cites W2108384452 @default.
• W3036682709 cites W2108599940 @default.
• W3036682709 cites W2111177605 @default.
• W3036682709 cites W2112688502 @default.
• W3036682709 cites W2115095583 @default.
• W3036682709 cites W2115971452 @default.
• W3036682709 cites W2116679324 @default.
• W3036682709 cites W2117049078 @default.
• W3036682709 cites W2117621792 @default.
• W3036682709 cites W2118213087 @default.
• W3036682709 cites W2118615399 @default.
• W3036682709 cites W2119976941 @default.
• W3036682709 cites W2120781542 @default.
• W3036682709 cites W2127498969 @default.
• W3036682709 cites W2127921326 @default.
• W3036682709 cites W2128812537 @default.
• W3036682709 cites W2129928127 @default.
• W3036682709 cites W2134099712 @default.
• W3036682709 cites W2134174619 @default.

• next