Theta synchronization in the human EEG and episodic retrieval

  title={Theta synchronization in the human EEG and episodic retrieval},
  author={Michael Doppelmayr and Wolfgang Klimesch and J Schwaiger and P Auinger and T. Winkler},
  journal={Neuroscience Letters},
Theta and High-Frequency Activity Mark Spontaneous Recall of Episodic Memories
It is found that retrieval evolved in three electrophysiological stages composed of: (1) early theta oscillations in the right temporal cortex, (2) increased HFA in the left hemisphere including the medial temporal lobe, left inferior frontal gyrus, as well as the ventrolateralporal cortex, and (3) motor/language activation during vocalization of the retrieved item.
Event-Related Synchronization and Desynchronization During Affective Processing: Emergence of Valence-Related Time-Dependent Hemispheric Asymmetries in Theta and Upper Alpha Band
The obtained findings indicate that differences induced by pictures varying in emotional valence are associated mainly with increased theta and alpha-3 synchronization activity and anterior hemispheric asymmetries.
Event-Related Desynchronization of Frontal-Midline Theta Rhythm during Preconscious Auditory Oddball Processing
The frontal-mid-line theta rhythm (Fm theta) generation mechanism employing event-related desynchronization/synchronization (ERD/ERS) analysis in relation to task-irrelevant external stimuli was explored.
Neural Dynamics Associated with Semantic and Episodic Memory for Faces: Evidence from Multiple Frequency Bands
Investigation of neuroelectric dynamics during the creation and the retrieval of episodic memories for famous and nonfamous faces provides new insights into the complex interaction between semantic and episodic memory for faces and the neural dynamics associated with mnemonic processes.
Theta oscillations in top-down control of episodic memory retrieval
Results indicate that right frontal areas are engaged for source retrieval and that transient theta interactions in a fronto-parietal-hippocampal network are involved in the monitoring of episodic memory.
Time-dependent cortical asymmetries induced by emotional arousal: EEG analysis of event-related synchronization and desynchronization in individually defined frequency bands.
Functional role of gamma and theta oscillations in episodic memory


Episodic and semantic memory: an analysis in the EEG theta and alpha band.
Short duration synchronization of human theta rhythm during recognition memory
There are short duration changes in the human theta rhythm associated with recognition memory and this increase was more than twice as great for repeated words as for new ones.
Event-related desynchronization (ERD) and the Dm effect: does alpha desynchronization during encoding predict later recall performance?
Memory processes, brain oscillations and EEG synchronization.
  • W. Klimesch
  • Psychology
    International journal of psychophysiology : official journal of the International Organization of Psychophysiology
  • 1996
PET studies of encoding and retrieval: The HERA model
We review positron emission tomography (PET) studies whose results converge on the hemispheric encoding/retrieval asymmetry (HERA) model of the involvement of prefrontal cortical regions in the
Individual differences in brain dynamics: important implications for the calculation of event-related band power
This new method to adjust the frequency bands to the individual alpha frequency (IAF) for each subject and to determine the bandwidth for the alpha and theta bands as a percentage of IAF is proposed.
Hemispheric encoding/retrieval asymmetry in episodic memory: positron emission tomography findings.
A hemispheric encoding/retrieval asymmetry model of prefrontal involvement in encoding and retrieval of episodic memory is proposed, which suggests that left and right prefrontal lobes are part of an extensive neuronal network that subserves episodic remembering, but the two prefrontal hemispheres play different roles.
Neuroanatomical correlates of retrieval in episodic memory: auditory sentence recognition.
The prevalence of sulcal blood-flow changes may reflect extensive cortical gyrification; it may also indicate that memory-related processes rely on the densely packed neuropil of sulCal regions.