scholarly journals Partially dissociable roles of OFC and ACC in stimulus-guided and action-guided decision making

2014 ◽  
Vol 111 (9) ◽  
pp. 1717-1720 ◽  
Author(s):  
Abbas Khani

Recently, the functional specialization of prefrontal areas of the brain, and, specifically, the functional dissociation of the orbitofrontal cortex (OFC) and the anterior cingulate cortex (ACC), during decision making have become a particular focus of research. A number of neuropsychological and lesion studies have shown that the OFC and ACC have dissociable functions in various dimensions of decision making, which are supported by their different anatomical connections. A recent single-neuron study, however, described a more complex picture of the functional dissociation between these two frontal regions during decision making. Here, I discuss the results of that study and consider alternative interpretations in connection with other findings.

2021 ◽  
Vol 11 (8) ◽  
pp. 1096
Author(s):  
Yixuan Chen

Decision making is crucial for animal survival because the choices they make based on their current situation could influence their future rewards and could have potential costs. This review summarises recent developments in decision making, discusses how rewards and costs could be encoded in the brain, and how different options are compared such that the most optimal one is chosen. The reward and cost are mainly encoded by the forebrain structures (e.g., anterior cingulate cortex, orbitofrontal cortex), and their value is updated through learning. The recent development on dopamine and the lateral habenula’s role in reporting prediction errors and instructing learning will be emphasised. The importance of dopamine in powering the choice and accounting for the internal state will also be discussed. While the orbitofrontal cortex is the place where the state values are stored, the anterior cingulate cortex is more important when the environment is volatile. All of these structures compare different attributes of the task simultaneously, and the local competition of different neuronal networks allows for the selection of the most appropriate one. Therefore, the total value of the task is not encoded as a scalar quantity in the brain but, instead, as an emergent phenomenon, arising from the computation at different brain regions.


2014 ◽  
Vol 232 (12) ◽  
pp. 2097-2112 ◽  
Author(s):  
Abbas Khani ◽  
Mojtaba Kermani ◽  
Soghra Hesam ◽  
Abbas Haghparast ◽  
Enrike G. Argandoña ◽  
...  

2009 ◽  
Vol 29 (8) ◽  
pp. 1678-1691 ◽  
Author(s):  
Mark E. Walton ◽  
James Groves ◽  
Katie A. Jennings ◽  
Paula L. Croxson ◽  
Trevor Sharp ◽  
...  

2017 ◽  
Vol 7 (10) ◽  
pp. e00768 ◽  
Author(s):  
Xiaolin Zhong ◽  
Sihao Deng ◽  
Wenbo Ma ◽  
Yuchen Yang ◽  
Dahua Lu ◽  
...  

2017 ◽  
Vol 8 (4) ◽  
pp. 43-54
Author(s):  
E.A. Varshaver

This article contains a review of research in the realm of neurophysiology of ethnicity. According to this body of research, there are zones of the brain which get active in response to demonstration of ethnic stimuli. Among these zones are amygdala, anterior cingulate cortex, fusiform face area and others. The article describes the research focused on each of these zones, discusses their weaknesses and projects further research on the crossroads of neurophysiology, cognitive science, psychology and sociology.


2000 ◽  
Vol 83 (6) ◽  
pp. 3575-3577 ◽  
Author(s):  
Karen D. Davis ◽  
William D. Hutchison ◽  
Andres M. Lozano ◽  
Ronald R. Tasker ◽  
Jonathan O. Dostrovsky

Recent imaging studies have implicated the anterior cingulate cortex (ACC) in various cognitive functions, including attention. However, until now, there was no evidence for changes in neuronal activity of individual ACC neurons during performance of tasks that require attention and effortful thought. We hypothesized these neurons must exist in the human ACC. In this study, we present electrophysiological data from microelectrode single neuron recordings in the human ACC of neuronal modulation during attention-demanding tasks in 19% of 36 neurons tested. These findings provide the first direct evidence of an influence of a cognitive state on the spontaneous neuronal activity of human ACC neurons.


2019 ◽  
Vol 10 (1) ◽  
Author(s):  
J. Kael White ◽  
Ethan S. Bromberg-Martin ◽  
Sarah R. Heilbronner ◽  
Kaining Zhang ◽  
Julia Pai ◽  
...  

AbstractHumans and other animals often show a strong desire to know the uncertain rewards their future has in store, even when they cannot use this information to influence the outcome. However, it is unknown how the brain predicts opportunities to gain information and motivates this information-seeking behavior. Here we show that neurons in a network of interconnected subregions of primate anterior cingulate cortex and basal ganglia predict the moment of gaining information about uncertain rewards. Spontaneous increases in their information prediction signals are followed by gaze shifts toward objects associated with resolving uncertainty, and pharmacologically disrupting this network reduces the motivation to seek information. These findings demonstrate a cortico-basal ganglia mechanism responsible for motivating actions to resolve uncertainty by seeking knowledge about the future.


2020 ◽  
Vol 4 (4) ◽  
pp. 412-422 ◽  
Author(s):  
Eliana Vassena ◽  
James Deraeve ◽  
William H. Alexander

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