Neurophysiological Manifestations of Recollective Experience during Recognition Memory Judgments

1993 ◽  
Vol 5 (1) ◽  
pp. 1-13 ◽  
Author(s):  
Michael E. Smith
Keyword(s):  
Recognition Memory ◽  
Current Knowledge ◽  
Event Related Potentials ◽  
Subjective Response ◽  
General Sense ◽  
Subjective Awareness ◽  
Different Types ◽  
Conscious Recollection ◽  
Related Potentials ◽  
Internal Experience

Decisions regarding whether an item has been previously encountered are typically accompanied by one of two distinct forms of subjective awareness: either a general sense of familiarity, or conscious recollection of specific details from a prior study episode. To examine the neurophysiological concomitants of these different types of internal experience, event-related potentials (ERPs) were recorded while subjects engaged in a modified recognition memory procedure that required them to describe their subjective response during each testtrial. Stimuli that evoked recollection were accompanied by waveforms distinct from those that evoked only a sense of familiarity, and waveforms for both categories of correctly classified old items differed from correctly rejected distractor items and incorrectly classified (missed) studied items. These ERP responses are interpreted with respect to current knowledge concerning the neural structures and processes intimately involved in the capacity to engage in recollection.

scholarly journals Variations in Pupil Size Related to Memory for Recently Presented Words and Event Related Potentials

2020 ◽  
pp. 1-09
Author(s):  
Jan Rouke Kuipers ◽  
William A. Phillips
Keyword(s):  
Pupil Size ◽  
Memory Performance ◽  
Event Related Potentials ◽  
Study Phase ◽  
Attention And Memory ◽  
Performance Study ◽  
Brain Responses ◽  
Different Types ◽  
Related Potentials ◽  
Initial List

Pupillometry has been found to be correlated with activity of cholinergic and noradrenergic neuromodulator systems. These systems regulate the level of cortical arousal and therefore perception, attention, and memory. Here, we tested how different types of pupil size variance (prestimulus baseline and prestimulus hippus power) may correlate with behavioral and electrophysiological brain responses (ERPs). We recorded pupil size and ERPs while participants were presented with a series of words and then asked whether they had been in the initial list when they were later presented intermixed with unpresented words. We found that a smaller prestimulus baseline pupil size during the study phase was associated with better memory performance. Study items also evoked a larger P3 response at presentation and a greater old/new memory ERP effect at test when prestimulus pupil size was small rather than large. Prestimulus hippus power was found to be a between-subjects factor affecting the robustness of memory encoding with less power being associated with a greater old/new memory ERP effect. These results provide evidence relating memory and ERPs to variables defined on pupil size that are thought to reflect varying states of parasympathetic and sympathetic arousal.

scholarly journals Cortical Auditory Disorders: A Case of Non-Verbal Disturbances Assessed with Event-Related Brain Potentials

1998 ◽  
Vol 11 (1) ◽  
pp. 55-73 ◽  
Author(s):  
Sönke Johannes ◽  
Michael E. Jöbges ◽  
Reinhard Dengler ◽  
Thomas F. Münte
Keyword(s):  
Current Knowledge ◽  
Hemispheric Specialization ◽  
Sensory Information ◽  
Event Related Potentials ◽  
Absolute Pitch ◽  
Oddball Paradigm ◽  
Auditory Modality ◽  
Related Potentials ◽  
Sensory Processes ◽  
Auditory Disorders

In the auditory modality, there has been a considerable debate about some aspects of cortical disorders, especially about auditory forms of agnosia. Agnosia refers to an impaired comprehension of sensory information in the absence of deficits in primary sensory processes. In the non-verbal domain, sound agnosia and amusia have been reported but are frequently accompanied by language deficits whereas pure deficits are rare. Absolute pitch and musicians’ musical abilities have been associated with left hemispheric functions. We report the case of a right handed sound engineer with the absolute pitch who developed sound agnosia and amusia in the absence of verbal deficits after a right perisylvian stroke. His disabilities were assessed with the Seashore Test of Musical Functions, the tests of Wertheim and Botez (Wertheim and Botez, Brain 84, 1961, 19–30) and by event-related potentials (ERP) recorded in a modified 'oddball paradigm’. Auditory ERP revealed a dissociation between the amplitudes of the P3a and P3b subcomponents with the P3b being reduced in amplitude while the P3a was undisturbed. This is interpreted as reflecting disturbances in target detection processes as indexed by the P3b. The findings that contradict some aspects of current knowledge about left/right hemispheric specialization in musical processing are discussed and related to the literature concerning cortical auditory disorders.

EVENT-RELATED POTENTIALS RELATED TO RECOGNITION MEMORY

Brain ◽  
1991 ◽  
Vol 114 (5) ◽  
pp. 2313-2332 ◽  
Author(s):  
MICHAEL D. RUGG ◽  
RICHARD C. ROBERTS ◽  
DOUGLAS D. ROTTER ◽  
CHARLES D. PICKLES ◽  
MARGARET E. NAGY
Keyword(s):  
Recognition Memory ◽  
Event Related Potentials ◽  
Related Potentials

Delayed recognition memory in infants and adults as revealed by event-related potentials

1998 ◽  
Vol 29 (2) ◽  
pp. 145-165 ◽  
Author(s):  
Charles A. Nelson ◽  
Kathleen M. Thomas ◽  
Michelle de Haan ◽  
Sandi S. Wewerka
Keyword(s):  
Recognition Memory ◽  
Event Related Potentials ◽  
Related Potentials ◽  
Delayed Recognition

Language Acquisition and Cerebral Specialization in 20-Month-Old Infants

1993 ◽  
Vol 5 (3) ◽  
pp. 317-334 ◽  
Author(s):  
Debra L. Mills ◽  
Sharon A. Coffey-Corina ◽  
Helen J. Neville
Keyword(s):  
Language Acquisition ◽  
Language Development ◽  
Left Hemisphere ◽  
Language Processing ◽  
Neural Activity ◽  
Event Related Potentials ◽  
Language Abilities ◽  
Different Types ◽  
Related Potentials ◽  
Anterior Posterior

The purpose of the present study was to examine patterns of neural activity relevant to language processing in 20-month-old infants, and to determine whether or not changes in cerebral organization occur as a function of specific changes in language development. Event-related potentials (ERPs) were recorded as children listened to a series of words whose meaning was understood by the child, words whose meaning the child did not understand, and backward words. The results showed that specific and different ERP components discriminated comprehended words from unknown and from backward words. Distinct lateral and anterior-posterior specializations were apparent in EW responsiveness to the different types of words. Moreover, the results suggested that increasing language abilities were associated with increasing cerebral specialization for language processing over the temporal and parietal regions of the left hemisphere.

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