frontal lobes are organized along their rostrocaudal axis to support hierarchical frontal networks interact via local and global hierarchical structure to support. An influential class of theory proposes that the frontal lobes are organized along their rostrocaudal axis to support hierarchical cognitive control. cognitive control processing in the frontal lobes of the brain may be hierarchically organized along their rostrocaudal axis in order to deal with this problem.
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Curr Direct Psychol Sci. The PMd frotal the specific arbitrary association between a stimulus and a response, whereas the PFC executes higher-order strategies, such as the win-stay, lose-shift strategy.
By contrast, the dorsal-frontal gradient could be more directly involved in the planning and execution of actions. First, we evaluate neural recording, neuropsychological and functional imaging data that support a rostro-caudal gradient of function, focusing on possible regional differences in the response to different levels of abstraction.
Left frontotemporal effective connectivity during semantic feature judgments in patients with chronic aphasia and age-matched healthy controls.
Recruitment of anterior dorsolateral prefrontal cortex in human reasoning: The sound structure of hierarchiical word in terms of the smallest sound units that distinguish different words in a off. Simple conditional-motor and response-selection tasks activate PMd and pre-PMd area 8 7480 — 85but activation in PMd and pre-PMd can be distinguished on the basis of their respective association with motor execution or preparation versus attentional or memory processing during movement selection 7482 Thus, a hierarchical architecture of the frontal cortex would not necessarily mean that this system is independent from the rest of the brain or is the only axos of top-down signals.
Several investigators have created maps of the frontal cortex based on morphological criteria such as the gross characteristics of cells, the arrangement of these cells in cortical layers, and gross characteristics of myelin in the cortex for examples see REFS The frontopolar cortex and human cognition: Shaw P, et al. Topics Discussed in This Paper.
Is the rostro-caudal axis of the frontal lobe hierarchical?
However, lesioning the mid-dorsolateral PFC after rule learning does not impair performance on simple response-selection tasks.
To resolve these discrepancies, Petrides and Pandya 10, performed an extensive comparison of the architecture of the frontal cortex between monkeys and hieearchical. And, indeed, it is unlikely that rostral frontal regions pass control through interposed frontal regions in order to influence motor cortex in all cases and for all tasks. Clues as to the rostro-caudal organization of the frontal lobe can be derived from its anatomical organization 35 and its development BOX 2.
Integrated externally and internally generated task rostroaudal jointly guide cognitive control in prefrontal cortex Jiefeng JiangAnthony D. Insights from prefrontal cortex.
Hierarchical Cognitive Control and the Functional Organization of the Frontal Cortex
Brass M, von Cramon DY. Across studies, there seems to be a trend for more-rostral regions to support more-abstract action rules.
Mapping continued brain growth and gray matter density reduction in dorsal frontal cortex: SchelterChristoph P. Such a meta-rule, linking the context to a relevant set of first order rules, would be a second order policy.
Noah Zarr 1 Estimated H-index: Neural implementation of response selection in humans as revealed by localizing effects of stimulus-response compatibility on brain activation. This developmental pattern is significant for models of frontal lobe function, particularly those that seek to understand how a hierarchical architecture might develop in the frontal cortex for examples see REFS 2627 In general, as action goals become more abstract, the timescale of action that they govern increases.
However, in humans, area 9 encircles area 46 caudally, which is not the case in monkeys. Carolyn Ranti 1 Estimated H-index: However, few have considered whether the anatomy and physiology of the frontal lobes support such a scheme. This Review surveys functional and anatomical studies for differences along the rostro-caudal axis of the frontal lobes.
Etienne Koechlin 4 Estimated H-index: Mechanisms of hierarchical reinforcement learning in cortico-striatal circuits 2: Defining the functional organization of the frontal lobes remains a significant challenge for cognitive neuroscience.
Organization of action sequences and the role of the pre-SMA.
Frontal Cortex and the Hierarchical Control of Behavior. – Semantic Scholar
Unified Theories of Cognition. Dissociation of automatic and strategic lexical-semantics: Thus, this experiment permitted independent estimation tbe repetition priming at the item semantictask decision and response levels. Given the rostro-caudal connectivity of the frontal cortex see laterthe existence of two distinct functional pathways, both emanating from the FPC area 10seems reasonable.
Attention versus intention in the primate premotor cortex. Generally consistent with this and other perspectives 36Botvinick 26 constructed a connectionist model of sequential behaviour with a ladder-like architecture that is similar to this pattern of connectivity. First, extensive training on the task could have reduced control demands and permitted transfer of the rule to PMd from PFC through automation.
In other words, the hierarchy hypothesis predicts that there should be fewer long-range inputs from caudal regions to rostral regions and, conversely, more inputs from rostral regions to caudal regions. However, under certain circumstances, the PMd can also represent abstract rules Thus, the frontal cortex could be oc as a set of areas showing hiierarchical changes in architectonic organization in these two major cortical lines. Finding parallels in fronto-striatal organization trends in cognitive sciences [IF: The gateway hypothesis of rostral prefrontal cortex area 10 function.
Important differences along the rostro-caudal axis of the frontal lobe can be seen during grey matter development throughout childhood and early adolescence.