Context changes control

A year in research · 30 selected publications · five research threads

Our 2019 studies showed that response inhibition cannot be understood without the perceptual, learned and biological context in which stopping becomes necessary.

The year dismantled the idea of a single inhibitory mechanism. Conflict source, stimulus modality, expectation, prior experience, neuromodulation and development all changed which process became limiting and which neural system carried the demand.

01 · INHIBITORY CONTEXT

Stopping starts with perception and expectation

Perceptual similarity between Go and No-go signals impaired inhibition, and physical stimulus intensity changed stopping through response-selection processes in right inferior frontal cortex.[1,2] Semantic conflict could actually improve inhibition by recruiting middle and inferior frontal control systems, illustrating that the same conflict can hinder action execution but facilitate stopping.[3] Overlapping Go and No-go features required unbinding and recoding across parahippocampal and superior-frontal systems.[4]

The sensory modality of conflict changed both behavioural interference and the cortical network used for stopping.[5] Cue validity interacted with inhibitory demand and a person's experience of cue reliability.[6] Even subliminal conflict depended on early attentional and task-set processes rather than only on later conflict monitoring.[7] A consensus guide translated such boundary conditions into rigorous recommendations for stop-signal-task design and analysis.[8]

In plain terms: Inhibition is not an isolated brake; its success depends on how information is perceived, predicted and recoded before the motor command is stopped.

02 · HIDDEN AND VISIBLE INFORMATION

Not all conflicts enter the system in the same way

Conscious and subliminal conflicts increased frontal theta power but differed in their effect on large-scale network efficiency: non-conscious conflict selectively reduced theta-network efficiency.[9] Resting theta set the sensitivity of later conflict-modulated inhibition, while 1/f neural noise decreased when control was recruited and covaried with norepinephrine-related processing.[10,11]

The content of a task mattered beyond conflict paradigms. Numerical task switching placed different demands on parietal processing for parity and magnitude judgments.[12] Synaesthesia showed that even objectively absent but subjectively real percepts can guide action through higher-order perception-response translation.[13]

In plain terms: Whether information is conscious, expected or even objectively present changes the route by which it influences action.

03 · NEUROMODULATION AND METACONTROL

Biology matters most in relation to demand

Methylphenidate effects on inhibition depended jointly on prior task experience and working-memory load.[14] Anodal stimulation could remove norepinephrine-related modulation of superior-frontal theta, showing that two interventions may interact rather than add up.[15] Genetic differences in catecholamine synthesis separated conscious from subliminal conflict, with norepinephrine contributing particularly to the latter.[16]

Dopamine D1 receptor efficiency was beneficial mainly under high control requirements, consistent with a stable task-set or persistence state.[17] Cholinergic receptor variation changed the use of prior information during flexibility.[18] Dopamine-related genetic variation also predicted self-reported action control differently by sex, adding a trait-level perspective to the state-dependent experiments.[19]

In plain terms: A neurochemical factor is rarely good or bad in isolation; its effect depends on the type and intensity of the control problem.

04 · DEVELOPMENT AND CLINICAL DIVERSITY

Comparable outcomes, different internal architectures

Tourette syndrome showed stronger perception-action binding that directly altered inhibition.[20] Deep learning separated children with ADHD from controls using event-related EEG, while mechanistic analyses revealed a hierarchical organization of inhibitory subprocesses that was altered in ADHD.[21,22] Adolescents with OCD could show a paradoxical stopping advantage because strong frontostriatal activation benefited a particular combination of automatic and controlled processes.[23]

In cerebellar ataxia, forward-model generation was relatively preserved but updating and error awareness were disturbed.[24] Thalamic GABA appeared to support compensatory control in restless legs syndrome.[25] Across adolescence, sequential flexibility remained less efficient and relied on different perceptual-categorization and frontal processes than in adults.[26]

In plain terms: Behavioural success can conceal compensation, while behavioural difficulty can arise from very different representational and neurochemical pathways.

05 · ALCOHOL AND STIMULANT USE

Substance effects have boundaries

A hangover produced only a small impairment in response selection and spared inhibition.[27] After prolonged methamphetamine abstinence, response selection could be behaviourally intact even when other executive domains remained vulnerable.[28] Frequent binge drinking by itself was not associated with measurable deficits in inhibition or flexibility.[29]

Acute high-dose alcohol presented a different picture: task switching deteriorated, especially through impaired cue processing and increased later control demand, although practice attenuated part of the effect.[30] These boundary conditions prevented broad substance-related labels from replacing process-specific explanation.

In plain terms: Substance exposure does not weaken every executive function equally; timing, dose, experience and the particular operation being tested determine the observed deficit.

What 2019 added up to

In 2019, context became part of the mechanism. Perception, awareness, expectation, task experience and neurobiology determined how control was implemented. This process-level view explained both counterintuitive advantages and selective impairments, and it made experimental design itself central to the interpretation of inhibition.

Selected publications

Curated from PubMed records returned for Beste C[au] in 2019. Citation numbers in the story link to entries below. DOI links open the publisher landing page; PubMed links open the indexed record.

1. How perceptual ambiguity affects response inhibition processes.

Adelhöfer N, Chmielewski WX, Beste C. Journal of neurophysiology. 2019;122(2):500-511.

DOI: 10.1152/jn.00298.2019   ·   PubMed

2. Physical intensity of stimuli modulates motor inhibition by affecting response selection processes in right inferior frontal regions.

Friedrich J, Mückschel M, Beste C. Behavioural brain research. 2019;359:597-608.

DOI: 10.1016/j.bbr.2018.10.006   ·   PubMed

3. Stimulus Feature Conflicts Enhance Motor Inhibitory Control Processes in the Lateral Prefrontal Cortex.

Chmielewski WX, Beste C. Journal of cognitive neuroscience. 2019;31(9):1430-1442.

DOI: 10.1162/jocn_a_01424   ·   PubMed

4. Stimulus-response recoding during inhibitory control is associated with superior frontal and parahippocampal processes.

Chmielewski WX, Beste C. NeuroImage. 2019;196:227-236.

DOI: 10.1016/j.neuroimage.2019.04.035   ·   PubMed

5. The impact of stimulus modality on the processing of conflicting sensory information during response inhibition.

Friedrich J, Beste C. Neuroscience. 2019;410:191-201.

DOI: 10.1016/j.neuroscience.2019.05.010   ·   PubMed

6. Validity expectancies shape the interplay of cueing and task demands during inhibitory control associated with right inferior frontal regions.

Adelhöfer N, Beste C. Brain structure & function. 2019;224(5):1911-1924.

DOI: 10.1007/s00429-019-01884-y   ·   PubMed

7. The Intensity of Early Attentional Processing, but Not Conflict Monitoring, Determines the Size of Subliminal Response Conflicts.

Bensmann W, Vahid A, Beste C, Stock AK. Frontiers in human neuroscience. 2019;13:53.

DOI: 10.3389/fnhum.2019.00053   ·   PubMed

8. A consensus guide to capturing the ability to inhibit actions and impulsive behaviors in the stop-signal task.

Verbruggen F, Aron AR, Band GP, Beste C, et al.. eLife. 2019;8:e46323.

DOI: 10.7554/eLife.46323   ·   PubMed

9. Neuronal networks underlying the conjoint modulation of response selection by subliminal and consciously induced cognitive conflicts.

Bensmann W, Zink N, Mückschel M, Beste C, Stock AK. Brain structure & function. 2019;224(5):1697-1709.

DOI: 10.1007/s00429-019-01866-0   ·   PubMed

10. On the relevance of EEG resting theta activity for the neurophysiological dynamics underlying motor inhibitory control.

Pscherer C, Mückschel M, Summerer L, Bluschke A, Beste C. Human brain mapping. 2019;40(14):4253-4265.

DOI: 10.1002/hbm.24699   ·   PubMed

11. On the interrelation of 1/f neural noise and norepinephrine system activity during motor response inhibition.

Pertermann M, Mückschel M, Adelhöfer N, Ziemssen T, Beste C. Journal of neurophysiology. 2019;121(5):1633-1643.

DOI: 10.1152/jn.00701.2018   ·   PubMed

12. Numbers in action during cognitive flexibility - A neurophysiological approach on numerical operations underlying task switching.

Petruo VA, Mückschel M, Beste C. Cortex; a journal devoted to the study of the nervous system and behavior. 2019;120:101-115.

DOI: 10.1016/j.cortex.2019.03.017   ·   PubMed

13. How non-veridical perception drives actions in healthy humans: evidence from synaesthesia.

Schreiter ML, Chmielewski WX, Ward J, Beste C. Philosophical transactions of the Royal Society of London. Series B, Biological sciences. 2019;374(1787):20180574.

DOI: 10.1098/rstb.2018.0574   ·   PubMed

14. Catecholaminergic effects on inhibitory control depend on the interplay of prior task experience and working memory demands.

Bensmann W, Zink N, Roessner V, Stock AK, Beste C. Journal of psychopharmacology (Oxford, England). 2019;33(6):678-687.

DOI: 10.1177/0269881119827815   ·   PubMed

15. Anodal tDCS affects neuromodulatory effects of the norepinephrine system on superior frontal theta activity during response inhibition.

Adelhöfer N, Mückschel M, Teufert B, Ziemssen T, Beste C. Brain structure & function. 2019;224(3):1291-1300.

DOI: 10.1007/s00429-019-01839-3   ·   PubMed

16. The Presynaptic Regulation of Dopamine and Norepinephrine Synthesis Has Dissociable Effects on Different Kinds of Cognitive Conflicts.

Bensmann W, Zink N, Arning L, Beste C, Stock AK. Molecular neurobiology. 2019;56(12):8087-8100.

DOI: 10.1007/s12035-019-01664-z   ·   PubMed

17. The Role of DRD1 and DRD2 Receptors for Response Selection Under Varying Complexity Levels: Implications for Metacontrol Processes.

Zink N, Bensmann W, Arning L, Colzato LS, Stock AK, Beste C. The international journal of neuropsychopharmacology. 2019;22(12):747-753.

DOI: 10.1093/ijnp/pyz024   ·   PubMed

18. CHRM2 Genotype Affects Inhibitory Control Mechanisms During Cognitive Flexibility.

Zink N, Bensmann W, Arning L, Stock AK, Beste C. Molecular neurobiology. 2019;56(9):6134-6141.

DOI: 10.1007/s12035-019-1521-6   ·   PubMed

19. Genetic variation in dopamine availability modulates the self-reported level of action control in a sex-dependent manner.

Schlüter C, Arning L, Fraenz C, Friedrich P, et al.. Social cognitive and affective neuroscience. 2019;14(7):759-768.

DOI: 10.1093/scan/nsz049   ·   PubMed

20. Altered perception-action binding modulates inhibitory control in Gilles de la Tourette syndrome.

Petruo V, Bodmer B, Brandt VC, Baumung L, Roessner V, Münchau A, Beste C. Journal of child psychology and psychiatry, and allied disciplines. 2019;60(9):953-962.

DOI: 10.1111/jcpp.12938   ·   PubMed

21. Deep Learning Based on Event-Related EEG Differentiates Children with ADHD from Healthy Controls.

Vahid A, Bluschke A, Roessner V, Stober S, Beste C. Journal of clinical medicine. 2019;8(7):1055.

DOI: 10.3390/jcm8071055   ·   PubMed

22. Evidence for an altered architecture and a hierarchical modulation of inhibitory control processes in ADHD.

Chmielewski W, Bluschke A, Bodmer B, Wolff N, Roessner V, Beste C. Developmental cognitive neuroscience. 2019;36:100623.

DOI: 10.1016/j.dcn.2019.100623   ·   PubMed

23. Paradoxical response inhibition advantages in adolescent obsessive compulsive disorder result from the interplay of automatic and controlled processes.

Wolff N, Chmielewski W, Buse J, Roessner V, Beste C. NeuroImage. Clinical. 2019;23:101893.

DOI: 10.1016/j.nicl.2019.101893   ·   PubMed

24. Predictive coding and adaptive behavior in patients with genetically determined cerebellar ataxia--A neurophysiology study.

Tunc S, Baginski N, Lubs J, Bally JF, et al.. NeuroImage. Clinical. 2019;24:102043.

DOI: 10.1016/j.nicl.2019.102043   ·   PubMed

25. Thalamic GABA may modulate cognitive control in restless legs syndrome.

Zhang R, Werner A, Hermann W, Brandt MD, Beste C, Stock AK. Neuroscience letters. 2019;712:134494.

DOI: 10.1016/j.neulet.2019.134494   ·   PubMed

26. The neurophysiological basis of developmental changes during sequential cognitive flexibility between adolescents and adults.

Giller F, Zhang R, Roessner V, Beste C. Human brain mapping. 2019;40(2):552-565.

DOI: 10.1002/hbm.24394   ·   PubMed

27. Alcohol Hangover Slightly Impairs Response Selection but not Response Inhibition.

Opitz A, Hubert J, Beste C, Stock AK. Journal of clinical medicine. 2019;8(9):1317.

DOI: 10.3390/jcm8091317   ·   PubMed

28. Methamphetamine Users Show No Behavioral Deficits in Response Selection After Protracted Abstinence.

Bensmann W, Ernst J, Rädle M, Opitz A, Beste C, Stock AK. Frontiers in psychiatry. 2019;10:823.

DOI: 10.3389/fpsyt.2019.00823   ·   PubMed

29. Young frequent binge drinkers show no behavioral deficits in inhibitory control and cognitive flexibility.

Bensmann W, Kayali ÖF, Beste C, Stock AK. Progress in neuro-psychopharmacology & biological psychiatry. 2019;93:93-101.

DOI: 10.1016/j.pnpbp.2019.03.019   ·   PubMed

30. Detrimental effects of a high-dose alcohol intoxication on sequential cognitive flexibility are attenuated by practice.

Zink N, Zhang R, Chmielewski WX, Beste C, Stock AK. Progress in neuro-psychopharmacology & biological psychiatry. 2019;89:97-108.

DOI: 10.1016/j.pnpbp.2018.08.034   ·   PubMed