Explicit and implicit learning of event sequences: evidence from event-related brain potentials.

Event-related brain potentials (ERPs) were recorded during a serial reaction time (RT) task, where single deviant items seldom (Experiment 1) or frequently (Experiment 2) replaced 1 item of a repeatedly presented 10-item standard sequence. Acquisition of sequence knowledge was reflected in faster RTs for standard as compared with deviant items and in an enhanced negativity (N2 component) of the ERP for deviant items. Effects were larger for participants showing explicit knowledge in their verbal reports and in a recognition test. The lateralized readiness potential indicated that correct responses were activated with shorter latencies after training. For deviant items, participants with explicit knowledge showed an initial activation of the incorrect but expected response. These findings suggest that the acquisition of explicit and implicit knowledge is reflected in different electrophysiological correlates and that sequence learning may involve the anticipatory preparation of responses.

[1]  Daniel B. Willingham,et al.  On the development of procedural knowledge. , 1989, Journal of experimental psychology. Learning, memory, and cognition.

[2]  Emanuel Donchin,et al.  The P300 component of the event-related brain potential as an index of information processing , 1982, Biological Psychology.

[3]  L. Squire.  Mechanisms of memory. , 1986, Lancet.

[4]  Daniel B. Willingham,et al.  Dissociation in a serial response time task using a recognition measure: comment on Perruchet and Amorim (1992) , 1993 .

[5]  Tim Curran,et al.  Attentional and Nonattentional Forms of Sequence Learning , 1993 .

[6]  A W Gaillard,et al.  Cognition and Event‐Related Potentials , 1984, Annals of the New York Academy of Sciences.

[7]  D. Shanks,et al.  Characteristics of dissociable human learning systems , 1994, Behavioral and Brain Sciences.

[8]  Carol A. Seger,et al.  Implicit learning. , 1994, Psychological bulletin.

[9]  Pawel Lewicki,et al.  Acquisition of procedural knowledge about a pattern of stimuli that cannot be articulated , 1988, Cognitive Psychology.

[10]  Peder J. Johnson,et al.  Assessing implicit learning with indirect tests: Determining what is learned about sequence structure. , 1994 .

[11]  Pierre Perruchet.  Learning from complex rule-governed environments: On the proper functions of nonconscious and consci , 1994 .

[12]  M. Nissen,et al.  Implicit learning of new verbal associations. , 1989, Journal of experimental psychology. Learning, memory, and cognition.

[13]  Unbewusstes Lernen―eine besondere Lernform? , 1993 .

[14]  D. Balota,et al.  Implicit Memory and the Formation of New Associations in Nondemented Parkinson′s Disease Individuals and Individuals with Senile Dementia of the Alzheimer Type: A Serial Reaction Time (SRT) Investigation , 1993, Brain and Cognition.

[15]  Pierre Perruchet,et al.  A critical reappraisal of the evidence for unconscious abstraction of deterministic rules in complex experimental situations , 1990, Cognitive Psychology.

[16]  James L. McClelland,et al.  Learning the structure of event sequences. , 1991, Journal of experimental psychology. General.

[17]  P. Holcomb,et al.  Event-related brain potentials elicited by syntactic anomaly , 1992 .

[18]  A. Healy,et al.  Long-term repetition effects for motoric and perceptual procedures. , 1991, Journal of experimental psychology. Learning, memory, and cognition.

[19]  M. Coles.  Modern mind-brain reading: psychophysiology, physiology, and cognition. , 1989, Psychophysiology.

[20]  Daniel L. Schacter,et al.  Priming and Multiple Memory Systems: Perceptual Mechanisms of Implicit Memory , 1992, Journal of Cognitive Neuroscience.

[21]  D. Howard,et al.  Serial pattern learning by event observation. , 1992, Journal of experimental psychology. Learning, memory, and cognition.

[22]  Peter Bullemer,et al.  On the development of procedural knowledge. , 1989 .

[23]  David R. Shanks,et al.  A critical examination of the evidence for unconscious (implicit) learning , 1994 .

[24]  A. Reber.  Implicit learning and tacit knowledge , 1993 .

[25]  Richard I. Ivry,et al.  Attention and structure in sequence learning. , 1990 .

[26]  M. Amorim,et al.  Conscious knowledge and changes in performance in sequence learning: evidence against dissociation. , 1992, Journal of experimental psychology. Learning, memory, and cognition.

[27]  D. Ruchkin,et al.  Emitted and evoked P300 potentials and variation in stimulus probability. , 1975, Psychophysiology.

[28]  M. Ziessler.  The impact of motor responses on serial-pattern learning , 1994, Psychological research.

[29]  H G Vaughan,et al.  Event-related potential correlates of two stages of information processing in physical and semantic discrimination tasks. , 1983, Psychophysiology.

[30]  G. McCarthy,et al.  On the influence of task relevance and stimulus probability on event-related-potential components. , 1977, Electroencephalography and clinical neurophysiology.

[31]  E. Tulving,et al.  Memory Systems 1994 , 1994 .

[32]  M. Kutas,et al.  Electrophysiology of cognitive processing. , 1983, Annual review of psychology.

[33]  A. Reber.  Implicit learning of artificial grammars , 1967 .

[34]  M. Moscovitch,et al.  Attention and Performance 15: Conscious and Nonconscious Information Processing , 1994 .

[35]  Colin M. Brown,et al.  The syntactic positive shift (sps) as an erp measure of syntactic processing , 1993 .

[36]  L. Squire.  Declarative and Nondeclarative Memory: Multiple Brain Systems Supporting Learning and Memory , 1992, Journal of Cognitive Neuroscience.

[37]  L. Jacoby.  A process dissociation framework: Separating automatic from intentional uses of memory , 1991 .

[38]  Steven A. Hillyard,et al.  The effect of stimulus deviation on P3 waves to easily recognized stimuli , 1978, Neuropsychologia.

[39]  M. Nissen,et al.  Procedural learning is impaired in Huntington's disease: Evidence from the serial reaction time task , 1991, Neuropsychologia.

[40]  M. Kutas,et al.  Event-related brain potentials to grammatical errors and semantic anomalies , 1983, Memory & cognition.

[41]  B. Fischhoff,et al.  Journal of Experimental Psychology: Human Learning and Memory , 1980 .

[42]  N. Squires,et al.  The effect of stimulus sequence on the waveform of the cortical event-related potential. , 1976, Science.

[43]  M. Kutas,et al.  Reading senseless sentences: brain potentials reflect semantic incongruity. , 1980, Science.

[44]  M. Nissen,et al.  Attentional requirements of learning: Evidence from performance measures , 1987, Cognitive Psychology.

[45]  Daniel B. Willingham,et al.  Explicit and implicit remembering: When is learning preserved in amnesia? , 1989, Neuropsychologia.

[46]  T. Curran,et al.  On tasks, knowledge, correlations, and dissociations: comment on Perruchet and Amorim (1992) , 1993 .

[47]  M. A. Stadler,et al.  On learning complex procedural knowledge. , 1989, Journal of experimental psychology. Learning, memory, and cognition.

[48]  Michael A. Stadler,et al.  Implicit serial learning: Questions inspired by Hebb (1961) , 1993, Memory & cognition.

[49]  F. Macar,et al.  An event-related potential analysis of incongruity in music and other non-linguistic contexts. , 1987, Psychophysiology.

[50]  C C Wood,et al.  Event-related potentials elicited by deviant endings to melodies. , 1992, Psychophysiology.

[51]  Karl J. Friston,et al.  Functional anatomy of human procedural learning determined with regional cerebral blood flow and PET , 1992, The Journal of neuroscience : the official journal of the Society for Neuroscience.