Observing Others: Multiple Action Representation in the Frontal Lobe

@article{Nelissen2005ObservingOM,
  title={Observing Others: Multiple Action Representation in the Frontal Lobe},
  author={Koen Nelissen and Giuseppe Luppino and Wim Vanduffel and Giacomo Rizzolatti and Guy A. Orban},
  journal={Science},
  year={2005},
  volume={310},
  pages={332 - 336}
}
Observation of actions performed by others activates monkey ventral premotor cortex, where action meaning, but not object identity, is coded. In a functional MRI (fMRI) study, we investigated whether other monkey frontal areas respond to actions performed by others. Observation of a hand grasping objects activated four frontal areas: rostral F5 and areas 45B, 45A, and 46. Observation of an individual grasping an object also activated caudal F5, which indicates different degrees of action… 
Action Observation Circuits in the Macaque Monkey Cortex
TLDR
The correlation of fMRI data with connectional data showed that visual action information, encoded in the STS, is forwarded to ventral premotor cortex (F5) along two distinct functional routes that emphasizes the object of the action and may aid in understanding motor acts with respect to their immediate goal.
On the Role of Object Information in Action Observation: An fMRI Study
TLDR
A division of labor within the action observation network that maps onto a similar division previously proposed for action execution is suggested.
Human parietal cortex in action
TLDR
This work reviews the known subregions of the human posterior parietal cortex and the principles behind their organization and discusses regions of the parietal lobes specialized for particular visuomotor actions.
Visual features of an observed agent do not modulate human brain activity during action observation
TLDR
The hypothesis that action goal is amongst the main determinants for the revelation of action observation activity, and to the existence of a broad system involved in the simulation of action, is supported.
A Mirror Representation of Others' Actions in the Human Anterior Parietal Cortex
The anterior part of the human intraparietal sulcus is known to be involved in visually guided grasping. This region is also active during the observation of object manipulation by others. Here, we
Action observation activates neurons of the monkey ventrolateral prefrontal cortex
TLDR
This work has recorded the activity of ventrolateral prefrontal neurons of macaque monkeys during the observation of videos depicting biological movements performed by a monkey or a human agent, and object motion and shows that a population of VLPF neurons respond to the observing of biological movements, in particular those representing goal directed actions.
Polymodal conceptual processing of human biological actions in the left inferior frontal lobe
TLDR
It is concluded that the pars opercularis of Broca's area is endowed with polymodal capabilities, allowing the processing of higher‐level conceptual aspects of action understanding.
Action Understanding Requires the Left Inferior Frontal Cortex
TLDR
RTMS use during a perceptual weight-judgement task demonstrates that the integrity of left inferior frontal gyrus is necessary to make accurate perceptual judgments about other people's actions.
Coding observed motor acts: different organizational principles in the parietal and premotor cortex of humans.
TLDR
Functional MRI data provide indications that the phAIP region plays a role in categorizing motor acts according to their behavioral significance, and suggest that in the case of motor acts typically done with the hand, the representations of such acts inphAIP are used as templates for coding motor acts executed with other effectors.
Action Observation Responses Are Influenced by Movement Kinematics and Target Identity.
TLDR
It is found that certain areas related to action observation, including the mirror neuron ones, are informed about movement kinematics and/or target identity, hence providing a pragmatic rather than a semantic representation of goal-directed actions.
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 66 REFERENCES
Premotor cortex and the recognition of motor actions.
TLDR
It is suggested that the development of the lateral verbal communication system in man derives from a more ancient communication system based on recognition of hand and face gestures.
Language within our grasp
TLDR
It is proposed here that an observation/execution matching system provides a necessary bridge from'doing' to'communicating', as the link between actor and observer becomes a link between the sender and the receiver of each message.
Hearing Sounds, Understanding Actions: Action Representation in Mirror Neurons
TLDR
This work found neurons in monkey premotor cortex that discharge when the animal performs a specific action and when it hears the related sound, and this discovery in the monkey homolog of Broca's area might shed light on the origin of language.
Action recognition in the premotor cortex.
TLDR
It is proposed that mirror neurons form a system for matching observation and execution of motor actions, similar to that of mirror neurons exists in humans and could be involved in recognition of actions as well as phonetic gestures.
Object representation in the ventral premotor cortex (area F5) of the monkey.
TLDR
Object shape is coded in F5 even when a response to that object is not required, and the possible visual or motor nature of this object coding is discussed.
Actions from within
Abstract This paper considers the nature of representations that precede the execution of an action. An analysis of the content of these representations is proposed by using classical tools of
Grasping objects: the cortical mechanisms of visuomotor transformation
TLDR
In humans, neuropsychological studies of patients with lesions to the parietal lobule confirm that primitive shape characteristics of an object for grasping are analyzed in theParietal lobe, and also demonstrate that this 'pragmatic' analysis of objects is separated from the 'semantic' analysis performed in the temporal lobe.
Parietal control of hand action
TLDR
The parietal cortex appears to process in-coming binocular visual signals of the three-dimensional features of objects and matches these signals with motor signals, which come from the ventral premotor cortex, that will be required for hand manipulation of the object.
The role of motor contagion in the prediction of action
TLDR
It is suggested that this crude motor contagion seems to arise specifically from the observation of biological movements, whether or not these movements are goal-directed, and is the first step in a more sophisticated predictive system that allows us to infer goals from the observations of actions.
Neurophysiological mechanisms underlying the understanding and imitation of action
TLDR
Evidence for the existence of a system, the 'mirror system', that seems to serve this mapping function in primates and humans is discussed, and its implications for the understanding and imitation of action are explored.
...
1
2
3
4
5
...