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An Introduction To The Event Related Potential Technique

https://isiarticles.com/bundles/Article/pre/pdf/35947.pdf

Biological and psychological markers of stress in humans: Focus on the Trier Social Stress Test

Creating false memories: Remembering words not presented in lists.

During the last ten years several studies have appeared regarding language complexity. Research on this issue began soon after the burst of a new movement of interest and research in the study of complex networks, i.e., networks whose structure is irregular, complex and dynamically evolving in time. In the first years, network approach to language mostly focused on a very abstract and general overview of language complexity, and few of them studied how this complexity is actually embodied in humans or how it affects cognition. However research has slowly shifted from the language-oriented towards a more cognitive-oriented point of view. This review first offers a brief summary on the methodological and formal foundations of complex networks, then it attempts a general vision of research activity on language from a complex networks perspective, and specially highlights those efforts with cognitive-inspired aim.

https://www.mdpi.com/1099-4300/12/5/1264/pdf

Semantic Networks: Structure and Dynamics

Masked associative/semantic priming effects across languages with highly proficient bilinguals

The most frequent names in Spanish corresponding to a set of 247 pictures in the Snodgrass and Vanderwart (1980) norms were used as stimuli in a discrete free-association task. A sample of 525 Spanish-speaking participants provided the first word that came to mind for each of the verbal stimuli. Responses were organized according to frequency of production in order to prepare word-association norms for the set of stimuli.

https://link.springer.com/content/pdf/10.3758/BF03195604.pdf

Free-association norms for the Spanish names of the Snodgrass and Vanderwart pictures.

A normative study was conducted using the Deese/Roediger–McDermott paradigm (DRM) to obtain false recognition for 60 six-word lists in Spanish, designed with a completely new methodology. For the first time, lists included words (e.g., bridal, newlyweds, bond, commitment, couple, to marry) simultaneously associated with three critical words (e.g., love, wedding, marriage). Backward associative strength between lists and critical words was taken into account when creating the lists. The results showed that all lists produced false recognition. Moreover, some lists had a high false recognition rate (e.g., 65%; jail, inmate, prison: bars, prisoner, cell, offender, penitentiary, imprisonment). This is an aspect of special interest for those DRM experiments that, for example, record brain electrical activity. This type of list will enable researchers to raise the signal-to-noise ratio in false recognition event-related potential studies as they increase the number of critical trials per list, and it will be especially useful for the design of future research.

/pdf/false-recognition-production-indexes-in-spanish-for-60-drm-1dmave680p.pdf

False recognition production indexes in Spanish for 60 DRM lists with three critical words

False recall and false recognition production indexes for 55 word-lists in Spanish: Word lists containing the 15 most frequent associates to a set of 55 critical words were elaborated on the basis of freeassociation norms available in Spanish. The degree to which studying each list led to false recall and false recognition of the corresponding critical words was empirically determined in two independent DRM experiments. The results showed a high level of variability among the lists in producing both false recall and false recognition, and they are of special interest for the design of DRM experiments with Spanish-speaking participants.

Índices de producción de falso recuerdo y falso reconocimiento para 55 listas de palabras en castellano

Event-related potentials (ERPs) were used to determine the effects of level of processing on true and false memory, using the Deese-Roediger-McDermott (DRM) paradigm. In the DRM paradigm, lists of words highly associated to a single nonpresented word (the 'critical lure') are studied and, in a subsequent memory test, critical lures are often falsely remembered. Lists with three critical lures per list were auditorily presented here to participants who studied them with either a shallow (saying whether the word contained the letter 'o') or a deep (creating a mental image of the word) processing task. Visual presentation modality was used on a final recognition test. True recognition of studied words was significantly higher after deep encoding, whereas false recognition of nonpresented critical lures was similar in both experimental groups. At the ERP level, true and false recognition showed similar patterns: no FN400 effect was found, whereas comparable left parietal and late right frontal old/new effects were found for true and false recognition in both experimental conditions. Items studied under shallow encoding conditions elicited more positive ERP than items studied under deep encoding conditions at a 1000-1500 ms interval. These ERP results suggest that true and false recognition share some common underlying processes. Differential effects of level of processing on true and false memory were found only at the behavioral level but not at the ERP level.

False memory and level of processing effect: an event-related potential study.

Memory researchers have long been captivated by the nature of memory distortions and have made efforts to identify the neural correlates of true and false memories. However, the underlying mechanisms of avoiding false memories by correctly rejecting related lures remains underexplored. In this study, we employed a variant of the Deese/Roediger-McDermott paradigm to explore neural signatures of committing and avoiding false memories. ERP were obtained for True recognition, False recognition, Correct rejection of new items, and, more importantly, Correct rejection of related lures. With these ERP data, early-frontal, left-parietal, and late right-frontal old/new effects (associated with familiarity, recollection, and monitoring processes, respectively) were analysed. Results indicated that there were similar patterns for True and False recognition in all three old/new effects analysed in our study. Also, False recognition and Correct rejection of related lures activities seemed to share common underlying familiarity-based processes. The ERP similarities between False recognition and Correct rejection of related lures disappeared when recollection processes were examined because only False recognition presented a parietal old/new effect. This finding supported the view that actual false recollections underlie false memories, providing evidence consistent with previous behavioural research and with most ERP and neuroimaging studies. Later, with the onset of monitoring processes, False recognition and Correct rejection of related lures waveforms presented, again, clearly dissociated patterns. Specifically, False recognition and True recognition showed more positive going patterns than Correct rejection of related lures signal and Correct rejection of new items signature. Since False recognition and Correct rejection of related lures triggered familiarity-recognition processes, our results suggest that deciding which items are studied is based more on recollection processes, which are later supported by monitoring processes. Results are discussed in terms of Activation-Monitoring Framework and Fuzzy Trace-Theory, the most prominent explanatory theories of false memory raised with the Deese/Roediger-McDermott paradigm.

/pdf/memory-distortion-and-its-avoidance-an-event-related-4a0bs328k5.pdf

Maria Soledad Beato

Papers

Free-association norms for the Spanish names of the Snodgrass and Vanderwart pictures.

False recognition production indexes in Spanish for 60 DRM lists with three critical words

Índices de producción de falso recuerdo y falso reconocimiento para 55 listas de palabras en castellano

False memory and level of processing effect: an event-related potential study.

Memory distortion and Its avoidance: an event-related potentials study on false recognition and correct rejection