Publications by authors named "Annamaria Kovacs"
Human listeners can focus on one speech stream out of several concurrent ones. The present study aimed to assess the whole-brain functional networks underlying a) the process of focusing attention on a single speech stream vs. dividing attention between two streams and 2) speech processing on different time-scales and depth.
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- The study investigated how attention and task type affect the processing of syntax in speech using ERP measurements.
- The findings showed that only relevant numerical targets triggered specific brain responses (N2b and P3), while syntactic violations elicited the N400 component only in attended speech.
- The results suggest that automatic syntactic analysis is unlikely, as in-depth processing occurs primarily for speech that is being actively attended to, rather than in a multitasking scenario.
The present experiments aimed to compare the length of seizure activity with the time-related increase of transmitter release and the induction of c-fos gene expression in the striatum of the rat. Anesthetized Wistar rats were intraperitoneally treated with 7 mg/kg 4-aminopyridine, and the transmitter levels in the striatum were measured by means of in vivo microdialysis, 30, 60, 90, 120, and 150 min following the treatment. Striatal and neocortical electric activity was monitored with depth and surface electrodes, respectively.
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