Blinowska K. J., Kuœ R., Kaminski M.,
Janiszewska J., (2010) Transmission of Brain Activity During Cognitive
Task, Brain Topography 23:205-213.
Movies show significant flows in the 25-45 Hz range during Constant Attention Test. TARGET condition corresponds to the occurrence of two identical patterns accompanied by the pressing of switch. NON TARGET condition corresponds to the occurrence of non-identical pictures and withdrawal from the action of switch pressing.
Subject 1
TARGET
Please note at the end of task the burst of activity from C3 (overlying finger motor cortex) connected with movement of the finger.
NON TARGET
Please observe the propagation from F8 overlying right Inferior Frontal Cortex (rIFC) – structure responsible for the inhibition in “go/no-go” tasks.
Subject 2
Similar effects as in the case of Subject 1 were observed. Note also in the first epoch of task involvement of prefrontal and frontal cortex which are active in the tasks involving pattern memorization, retrieval, comparison and decision making; they are also responsible for information storage and working memory.
Subject 3
TARGET
Similarly to the other subjects burst of activity from C3 accompanying movement.
NON TARGET
In this subject the propagation connected with the active inhibition
came from Fz electrode located above inhibitory motor region in the preSMA where
stimulation produces hesitation or arrest of manual and vocal responses. In 6
from 9 subjects active inhibition was connected with propagation from rIFC in 3
subjects from pre SMA.
SUBJECT 1 |
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SUBJECT 2 |
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SUBJECT 3 |
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SUBJECT 4 |
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coming
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coming soon |
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SUBJECT 5 |
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TARGET |
NON-TARGET |
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coming
soon |
coming soon |
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