scholarly journals Attentional Control in Anterior Cingulate Cortex Based on Probabilistic Cueing

2011 ◽  
Vol 23 (3) ◽  
pp. 716-727 ◽  
Author(s):  
Esther Aarts ◽  
Ardi Roelofs

In Stroop-like tasks, conflict effects in behavioral measures and ACC activity are smaller on trials following an incongruent trial than following a congruent one. Researchers have found no agreement on whether these sequential effects in ACC can be driven by experienced incongruency only or also by expectations about target types. In the present fMRI experiment, we specifically manipulated the expectancies by using symbolic cues predicting with 75% or 50% certainty the incongruent or congruent targets in a Stroop-like task. Both behavioral and dorsal ACC data replicated previous sequential effects, with conflict effects being smallest for targets following the cues that predicted with 75% certainty the incongruent targets. However, these effects were not driven by experienced conflict but by symbolic cues. These results demonstrate differential attentional control activity in ACC after probabilistic cueing, providing evidence for control adjustments driven by changes in expectation.

2010 ◽  
Vol 117 (2-3) ◽  
pp. 472
Author(s):  
Paolo Taurisano ◽  
Giuseppe Blasi ◽  
Apostolos Papazacharias ◽  
Raffaella Romano ◽  
Gianluca Ursini ◽  
...  

2019 ◽  
Vol 45 (5) ◽  
pp. 833-841 ◽  
Author(s):  
Daniela Vázquez ◽  
Heather J. Pribut ◽  
Amanda C. Burton ◽  
Stephen S. Tennyson ◽  
Matthew R. Roesch

AbstractAlthough maladaptive decision-making is a defining feature of drug abuse and addiction, we have yet to ascertain how cocaine self-administration disrupts neural signals in anterior cingulate cortex (ACC), a brain region thought to contribute to attentional control. To address this issue, rats were trained on a reward-guided decision-making task; reward value was manipulated by independently varying the size of or the delay to reward over several trial blocks. Subsequently, rats self-administered either a cocaine (experimental group) or sucrose (control) during 12 consecutive days, after which they underwent a 1-month withdrawal period. Upon completion of this period, rats performed the previously learned reward-guided decision-making task while we recorded from single neurons in ACC. We demonstrate that prior cocaine self-administration attenuates attention and attention-related ACC signals in an intake-dependent manner, and that changes in attention are decoupled from ACC firing. These effects likely contribute to the impaired decision-making—typified by chronic substance abuse and relapse—observed after drug use.


2014 ◽  
Vol 24 (22) ◽  
pp. 2613-2621 ◽  
Author(s):  
Thilo Womelsdorf ◽  
Salva Ardid ◽  
Stefan Everling ◽  
Taufik A. Valiante

NeuroImage ◽  
2010 ◽  
Vol 50 (3) ◽  
pp. 1292-1302 ◽  
Author(s):  
Rebecca Levin Silton ◽  
Wendy Heller ◽  
David N. Towers ◽  
Anna S. Engels ◽  
Jeffrey M. Spielberg ◽  
...  

2014 ◽  
Vol 25 (8) ◽  
pp. 2213-2228 ◽  
Author(s):  
Chen Shen ◽  
Salva Ardid ◽  
Daniel Kaping ◽  
Stephanie Westendorff ◽  
Stefan Everling ◽  
...  

2006 ◽  
Vol 18 (5) ◽  
pp. 766-780 ◽  
Author(s):  
S. Crottaz-Herbette ◽  
V. Menon

Attentional control provides top-down influences that allow task-relevant stimuli and responses to be processed preferentially. The anterior cingulate cortex (ACC) plays an important role in attentional control, but the spatiotemporal dynamics underlying this process is poorly understood. We examined the activation and connectivity of the ACC using functional magnetic resonance imaging (fMRI) along with fMRI-constrained dipole modeling of event-related potentials (ERPs) obtained from subjects who performed auditory and visual oddball attention tasks. Although attention-related responses in the ACC were similar in the two modalities, effective connectivity analyses showed modality-specific effects with increased ACC influences on the Heschl and superior temporal gyri during auditory task and on the striate cortex during visual task. Dipole modeling of ERPs based on source locations determined from fMRI activations showed that the ACC was the major generator of N2b-P3a attention-related components in both modalities, and that primary sensory regions generated a small mismatch signal about 50 msec prior to feedback from the ACC and a large signal 60 msec after feedback from the ACC. Taken together, these results provide converging neuroimaging and electrophysiological evidence for top-down attentional modulation of sensory processing by the ACC. Our findings suggest a model of attentional control based on dynamic bottom-up and top-down interactions between the ACC and primary sensory regions.


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