Ela Isabel Olivares

Ela Isabel Olivares
Universidad Autónoma de Madrid | UAM · Biological and Health Psychology

PhD.

About

39
Publications
11,806
Reads
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532
Citations
Citations since 2016
7 Research Items
156 Citations
2016201720182019202020212022051015202530
2016201720182019202020212022051015202530
2016201720182019202020212022051015202530
2016201720182019202020212022051015202530
Additional affiliations
April 1996 - present
Universidad Autónoma de Madrid
Position
  • Senior Lecturer (Profesora Titular)
April 1996 - present
Universidad Autónoma de Madrid
Position
  • Full Professor (Profesora Titular)
Description
  • Fundamental Neuroscience Psychophysiology Cognitive, Affective and Social Neuroscience
September 1989 - January 1995
University of Havana
Position
  • Professor (Associate)
Description
  • I taught there Biological Psychology and seminars about cognitive processes in General Psychology for 6 scholars years

Publications

Publications (39)
Article
Full-text available
In the perception of Navon hierarchical stimuli (e.g., large letters made up of small letters), young adults identify large letters faster than small ones (known as ‘global advantage’) and identify more slowly small letters when they form a different (or incongruent) large letter (known as ‘unidirectional global interference’). Since some global/lo...
Article
Full-text available
Appraisal theories of emotion sustain that stimuli containing high biological relevance preferentially capture our attention, regardless of their valence. In this work, we study the priming effect of both cute and threatening pictures on global/local visual processing. Seventy-eight males and 168 females in different menstrual cycle phases performe...
Article
Full-text available
The global precedence effect (GPE), originally referring to processing hierarchical visual stimuli composed of letters, is characterised by both global advantage and global interference. We present herein a study of how this effect is modulated by the variables letter and sex. The Navon task, using the letters “H” and “S,” was administered to 78 ma...
Article
Neuropsychological studies have shown that prosopagnosic individuals perceive face structure in an atypical way. This might preclude the formation of appropriate face representations and, consequently, hamper effective recognition. The present ERP study, in combination with Bayesian source reconstruction, investigates how information related to bot...
Article
Full-text available
We investigated the neural correlates of the access to and retrieval of face structure information in contrast to those concerning the access to and retrieval of person-related verbal information, triggered by faces. We experimentally induced stimulus familiarity via a systematic learning procedure including faces with and without associated verbal...
Chapter
Full-text available
The aim of the present study is to identify early markers of neurodegenerative syndromes like Alzheimer disease. To this end, we consider important to explore those neurocognitive changes occurring during object, face and facial expression visual processing in pathological versus typical aging. In the present neuropsychological study 4 elderly peop...
Thesis
Tesis doctoral inédita leída en la Universidad Autónoma de Madrid, Facultad de Psicología, Departamento de Psicología Biológica y de la Salud, Fecha de lectura:Mayo de 2006
Article
Full-text available
We analyze the functional significance of different event-related potentials (ERPs) as electrophysiological indices of face perception and face recognition, according to cognitive and neurofunctional models of face processing. Initially, the processing of faces seems to be supported by early extrastriate occipital cortices and revealed by modulatio...
Article
Full-text available
Introducción. Aunque en el envejecimiento la identificación de caras familiares en la vida cotidiana está preservada, se han observado cambios en el proceso inicial de codificación estructural de las caras como estímulo visual complejo. En la fase leve de la enfermedad de Alzheimer (EA) se encuentra afectado también el procesamiento semántico subya...
Article
La percepción y el reconocimiento de caras como funciones cerebrales complejas de gran relevancia psicobiológica son objeto de estudio por parte de la comunidad neurocientífica desde hace varias décadas. En este artículo se revisan los datos existentes sobre potenciales evocados y procesamiento de caras y se discute la significación funcional de ca...
Article
The perceptual processing of faces was studied using event-related potentials (ERPs) in 12 elderly patients with cognitive impairment, 15 elderly adults and 16 young adults in order to explore the sensitivity of N170/VPP to the cognitive decline associated to Alzheimer's disease. Famous and unknown faces were presented in a familiarity categorizati...
Article
Full-text available
BackGROUND/STUDY CONTEXT: Patients with mild Alzheimer's disease and mild cognitive impairment show selective loss of knowledge regarding facial identification. The authors focus on decline effects on event-related potentials (ERPs) P100, N170, N250, and N400, associated with the processing of facial identity. Different famous and unknown faces wer...
Article
Tesis doctoral inédita. Universidad Autónoma de Madrid, Facultad de Psicología, Departamento de Psicología Biológica. Fecha de lectura: 30-6-97 Bibliografía:
Article
Full-text available
Brain activity underlying explicit and implicit processing of face familiarity was assessed by Event-Related Potentials (ERPs) elicited by famous and unknown faces with happy or neutral expressions. A set of faces was presented in a familiarity judgment (explicit) task and another in an expression judgment (implicit familiarity) task. After recordi...
Article
Whereas some behavioral studies have shown that internal features are crucial for efficient face recognition in healthy adults, compared to external features, the brain mechanisms underlying this "internal features advantage" are still unknown. In the present study, the differential relevance of both subsets of facial features is addressed analyzin...
Article
Full-text available
Evoked potentials are real-time electrophysiological markers of cognitive operations and especially mnemonic processes. The N400 wave has traditionally been studied to characterise the processes involved in memorising verbal material. To investigate the existence of specific memory processes for each information domain, functional analogues of this...
Article
In this ERP study we analyzed how different orders of presentation of external and internal features influence the integration of facial components into face gestalts. Participants carried out a face-feature matching task in which, in each trial, external (E) and internal (I) facial features were presented separately and in sequence, followed by a...
Article
Event-related potentials (ERPs) were used to investigate the role of attention on the processing of facial expressions of fear and disgust. Stimuli consisted of overlapping pictures of a face and a house. Participants had to monitor repetitions of faces or houses, in separate blocks of trials, so that object-based attention was manipulated while sp...
Article
Full-text available
N400 brain event-related potential (ERP) is a mismatch negativity originally found in response to semantic incongruences of a linguistic nature and is used paradigmatically to investigate memory organization in various domains of information, including that of faces. In the present study, we analyzed different mismatch negativities evoked in N400-l...
Article
Event-related potentials (ERPs) and behavioral data were recorded while subjects performed two tasks on the same set of faces (presented in pairs). One task was identity matching and the other expression matching. Two groups of subjects participated, one familiar and the other unfamiliar with the faces. Subjects were less accurate in matching expre...
Article
To analyze the neural bases of perception and the recognition of faces. First of all we consider the concept of functional hemisphere specialization; then we look at the results obtained with regard to the neuroanatomy of processing faces and finally refer to the disorders of recognition of faces in humans. For this we review the clinical evidence...
Article
We present a procedure designed for the learning of faces (represented by realistic drawings) and a task for the subsequent recording of Event-Related Potentials (ERPs), with the aim of investigating the psychobiological mechanisms involved in the recognition of familiar (or known) faces. The learning procedure consisted in a series of six sessions...
Article
Full-text available
Agradecimientos. Este trabajo forma parte del proyecto de investigación DGES PB95-0246.  2000, REVISTA DE NEUROLOGÍA INTRODUCCIÓN El procesamiento neural de la información facial tiene una especial relevancia durante las relaciones interindividuales. La cara como estímulo visual caracteriza la identidad de una persona y refleja la comunicación de...
Article
Thirty scalp sites were used to investigate the specific topography of the event-related potentials (ERPs) related to face associative priming when masked eyes of familiar faces were completed with either the proper features or incongruent ones. The enhanced negativity of N210 and N350, due to structural incongruity of faces, have a "category speci...
Article
In a previous study [E. Olivares, M.A. Bobes, E. Aubert, M. Valdés-Sosa, Associative ERPs effects with memories of artificial faces, Cogn. Brain Res. 2 (1994) 39-48] we reported the presence of a negativity associated with mismatching features when subjects carried out a face-feature matching task whilst their evoked potentials were recorded. Since...
Article
In our face-feature matching task a face without the eye/eyebrow region is first presented as context and then completed with either the original features or with those from another face. Face-feature mismatches are associated with an enhanced ERP component (N374). Here we explore the influence of stimulus repetition on N374. Faces were repeated ei...
Article
Expectancies about face-structure can be induced by viewing parts of faces, which generates constraints due to two types of knowledge: feature-content and configuration. In a first experiment ERPs were recorded when parts of familiar faces were completed with incongruent features (from another face), as opposed to congruent features (from the same...
Article
A previous study (Valdes-Sosa and Bobes, 1990) described a negative ERP component evoked by mis-matches in a face-feature matching task, using photographs of real faces. This component could be N400 (or an analogue), elicited by associative priming within a non-linguistic domain: that of face structure. To confirm this it is necessary to demonstrat...
Article
Face identity processing was studied through event-related potentials (ERPs) elicited by famous and unknown faces, that showed happy and neutral facial expressions, in elderly individuals with cognitive impairment (mild cognitive impairment and Alzheimer’s disease) and elderly individuals without cognitive impairment, in order to explore the useful...
Article
Full-text available
As inferências sobre confiabilidade são uma das atribuições sociais baseadas na aparência facial mais comuns. O presente estudo utilizou potenciais evocados para investigar as respostas eléctricas cerebrais associadas à percepção de caras de pessoas consideradas confiáveis ou não. Os resultados sugeriram que o processamento da informação facial que...

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Project (1)
Project
I'm working on ERPs related to face processing, I'm also studying now brain damage people and MCI/Alzheimer. We are searching ERP markers of these pathologies and we are thinking on plan some rehabilitation tasks for them