Changes of ongoing activity in Cebus monkey perirhinal cortex correlate with behavioral performance
A Cebus apella monkey weighing 4 kg was trained in a saccadic eye movement task and while the animal performed the task we recorded the extracellular activity of perirhinal cortical neurons. Although the task was very simple and maintained at a constant level of difficulty, we observed considerable...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Divulgação Científica
2005-01-01
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| Series: | Brazilian Journal of Medical and Biological Research |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000100010 |
| _version_ | 1828805809138565120 |
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| author | B. Lima M. Fiorani R. Gattass |
| author_facet | B. Lima M. Fiorani R. Gattass |
| author_sort | B. Lima |
| collection | DOAJ |
| description | A Cebus apella monkey weighing 4 kg was trained in a saccadic eye movement task and while the animal performed the task we recorded the extracellular activity of perirhinal cortical neurons. Although the task was very simple and maintained at a constant level of difficulty, we observed considerable changes in the performance of the monkey within each experimental session. The behavioral states responsible for such variation may be related to arousal, motivation or attention of the animal while engaged in the task. In approximately 20% (16/82) of the units recorded, long-term direct or inverse correlations could be demonstrated between the monkey's behavioral state and the cells' ongoing activity (independent of the visual stimulation or of the specific behavior along a trial). The perirhinal cortex and other medial temporal structures have long been associated with normal memory function. The data presented here were interpreted in terms of recent reports focusing on the subcortical afferents to temporal lobe structures and their possible role in controlling arousal, motivation, or attention. |
| first_indexed | 2024-12-12T08:00:36Z |
| format | Article |
| id | doaj.art-db624a9d56434f8c8dc945e737ab0713 |
| institution | Directory Open Access Journal |
| issn | 0100-879X 1414-431X |
| language | English |
| last_indexed | 2024-12-12T08:00:36Z |
| publishDate | 2005-01-01 |
| publisher | Associação Brasileira de Divulgação Científica |
| record_format | Article |
| series | Brazilian Journal of Medical and Biological Research |
| spelling | doaj.art-db624a9d56434f8c8dc945e737ab07132022-12-22T00:32:09ZengAssociação Brasileira de Divulgação CientíficaBrazilian Journal of Medical and Biological Research0100-879X1414-431X2005-01-01381596310.1590/S0100-879X2005000100010Changes of ongoing activity in Cebus monkey perirhinal cortex correlate with behavioral performanceB. LimaM. FioraniR. GattassA Cebus apella monkey weighing 4 kg was trained in a saccadic eye movement task and while the animal performed the task we recorded the extracellular activity of perirhinal cortical neurons. Although the task was very simple and maintained at a constant level of difficulty, we observed considerable changes in the performance of the monkey within each experimental session. The behavioral states responsible for such variation may be related to arousal, motivation or attention of the animal while engaged in the task. In approximately 20% (16/82) of the units recorded, long-term direct or inverse correlations could be demonstrated between the monkey's behavioral state and the cells' ongoing activity (independent of the visual stimulation or of the specific behavior along a trial). The perirhinal cortex and other medial temporal structures have long been associated with normal memory function. The data presented here were interpreted in terms of recent reports focusing on the subcortical afferents to temporal lobe structures and their possible role in controlling arousal, motivation, or attention.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000100010Perirhinal cortexBehavioral statesMotivationCebus monkeys |
| spellingShingle | B. Lima M. Fiorani R. Gattass Changes of ongoing activity in Cebus monkey perirhinal cortex correlate with behavioral performance Brazilian Journal of Medical and Biological Research Perirhinal cortex Behavioral states Motivation Cebus monkeys |
| title | Changes of ongoing activity in Cebus monkey perirhinal cortex correlate with behavioral performance |
| title_full | Changes of ongoing activity in Cebus monkey perirhinal cortex correlate with behavioral performance |
| title_fullStr | Changes of ongoing activity in Cebus monkey perirhinal cortex correlate with behavioral performance |
| title_full_unstemmed | Changes of ongoing activity in Cebus monkey perirhinal cortex correlate with behavioral performance |
| title_short | Changes of ongoing activity in Cebus monkey perirhinal cortex correlate with behavioral performance |
| title_sort | changes of ongoing activity in cebus monkey perirhinal cortex correlate with behavioral performance |
| topic | Perirhinal cortex Behavioral states Motivation Cebus monkeys |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000100010 |
| work_keys_str_mv | AT blima changesofongoingactivityincebusmonkeyperirhinalcortexcorrelatewithbehavioralperformance AT mfiorani changesofongoingactivityincebusmonkeyperirhinalcortexcorrelatewithbehavioralperformance AT rgattass changesofongoingactivityincebusmonkeyperirhinalcortexcorrelatewithbehavioralperformance |