INT193405
From wiki-pain
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Sentences Mentioned In
Key: | Protein | Mutation | Event | Anatomy | Negation | Speculation | Pain term | Disease term |
In the present study we show that the medial OFC responds to reward outcomes (as well as following successful avoidance of aversive outcomes), whereas both medial and lateral OFC responds during anticipation of reward. | |||||||||||||||
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The main finding of this study is that the medial OFC responds during successful avoidance of aversive outcome as well as during receipt of explicit rewards. | |||||||||||||||
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Conversely, Cg25 was found to be strongly connected with regions of the DMN such as the OFC. | |||||||||||||||
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There is also a striking similarity in the changes in emotional responsivity following OFC lesions in rats and macaques. | |||||||||||||||
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The observation from the present study that OFC lesions do not affect the amount of social behaviour, or the utilization of social information, suggests that the deficit in STFP with OFC lesions is not due to the social context of the experiment. | |||||||||||||||
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Bonferroni tests comparing the amount of aggressive behaviour between lesion groups confirmed that OFC lesion animals were significantly more aggressive than both ACC (P < 0.05) and sham lesion animals (P < 0.01). | |||||||||||||||
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To investigate these issues, rats with either ACC or OFC lesions were tested on a number of previously validated ethological, unconditioned tests of social interaction and emotionality (Bannerman et al., 2002b; McHugh et al., 2004). | |||||||||||||||
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Although OFC lesions did not diminish animals' social engagement, they led to a small but significant increase in aggression (Fig. 4), and decreased fear in response to unconditioned stimuli on the hyponeophagia test (Fig. 7). | |||||||||||||||
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The observation from the present study that OFC lesions do not affect the amount of social behaviour, or the utilization of social information, suggests that the deficit in STFP with OFC lesions is not due to the social context of the experiment. | |||||||||||||||
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Subsequent analysis showed that whereas both the sham (F1,22 = 17.78; P < 0.001) and OFC (F1,17 = 11.22; P < 0.005) lesioned rats showed a significantly higher level of investigation for a novel juvenile compared with that for a familiar juvenile, this was not the case for the ACC lesioned rats (F1,21 < 1; P > 0.20). | |||||||||||||||
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Control and OFC groups showed less interest when the same juvenile was presented again, either immediately after the first encounter (Fig. 2C) or after delay (Fig. 2A), but they continued to engage in a high rate of socially orientated investigative behaviours when the identity of the juvenile was changed (Fig. 2B). | |||||||||||||||
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In the present study we show that the medial OFC responds to reward outcomes (as well as following successful avoidance of aversive outcomes), whereas both medial and lateral OFC responds during anticipation of reward. | |||||||||||||||
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For example, there is the intriguing possibility that both lesions result in impulsivity, but that dHPC lesions do so through an inability to withhold from executing an inappropriate response (behavioral disinhibition), whereas vHPC lesioned animals are unable to properly value delayed rewards, possibly as a consequence of disrupting HPC-OFC connections. | |||||||||||||||
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However, the effect of dHPC lesions on this task was not necessarily as predicted on the basis of the anatomical segregation of HPC-OFC connections. | |||||||||||||||
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Compared to controls, rats with OFC lesions display an increased preference for the goal arm of a T maze containing an immediately available low reward (LR) over the goal arm containing a higher reward (HR) that is only available after a delay (Rudebeck, Walton, Smyth, Bannerman, & Rushworth, 2006). | |||||||||||||||
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As controls, 11 patients with both luteal phase defect and high CL-RI (? | |||||||||||||||
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General Comments
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