PMID- 18489825 OWN - NLM STAT- MEDLINE DCOM- 20080808 LR - 20081121 IS - 0393-5264 (Print) IS - 0393-5264 (Linking) VI - 23 IP - 1 DP - 2008 Jan-Mar TI - Neural sequences: deductive principles and rules. PG - 15-9 AB - A neural sequence is set not only by deterministic, but also by chaotic rules. The former are, mainly, recency effects, while the latter intervene in the early stage of the performance. Chaotic-like sequences can be recognized by the presence, within them, of greater variations. Factors producing accelerations or decelerations of temporal parameters, i.e. inter-stimulus intervals (ISIs) and reaction latencies, and changes in other parameters, i.e. numbers of pauses, freezings and errors, depend on two orders of variability, a neural order (here we refer to degrees of excitability of different cortical and subcortical systems and temporal dissociations between their activities), and a psychological order (levels of attention, expectation, habituation and fatigue). FAU - Pinelli, Paolo AU - Pinelli P AD - Verbochronometry Laboratory, IRCCS S. Maugeri Foundation, Veruno, University of Pavia, Italy. paolo.pinelli@fsm.it LA - eng PT - Journal Article PT - Review PL - Italy TA - Funct Neurol JT - Functional neurology JID - 8707746 SB - IM MH - Animals MH - Cognition/physiology MH - Humans MH - Kinetics MH - Mental Processes/physiology MH - *Nervous System Physiological Phenomena MH - Psychomotor Performance/physiology MH - Stochastic Processes RF - 8 EDAT- 2008/05/21 09:00 MHDA- 2008/08/09 09:00 CRDT- 2008/05/21 09:00 PHST- 2008/05/21 09:00 [pubmed] PHST- 2008/08/09 09:00 [medline] PHST- 2008/05/21 09:00 [entrez] AID - 2833 [pii] PST - ppublish SO - Funct Neurol. 2008 Jan-Mar;23(1):15-9.