Determining of the Emotional State of a Person Using Computer Analysis of Sound Wave Parameters

Computer analysis of side-band holography in STEM

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100087732 ◽

1991 ◽

Vol 49 ◽

pp. 684-685

Author(s):

M.A. Gribelyuk ◽

J.M. Cowley

Keyword(s):

Interference Pattern ◽

Computer Analysis ◽

Side Band ◽

Diffraction Plane ◽

Illumination System ◽

Probe Size

Recently the use of a biprism in a STEM instrument has been suggested for recording of a hologram. A biprism is inserted in the illumination system and creates two coherent focussed beams at the specimen level with a probe size d= 5-10Å. If one beam passes through an object and another one passes in vacuum, an interference pattern, i.e. a hologram can be observed in diffraction plane (Fig.1).

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Effect of Emotions in a Lexical Decision Task

Swiss Journal of Psychology ◽

10.1024/1421-0185/a000193 ◽

2017 ◽

Vol 76 (2) ◽

pp. 71-79 ◽

Cited By ~ 1

Author(s):

Hélène Maire ◽

Renaud Brochard ◽

Jean-Luc Kop ◽

Vivien Dioux ◽

Daniel Zagar

Keyword(s):

Lexical Decision ◽

Lexical Decision Task ◽

Emotional State ◽

Control Group ◽

Decision Task ◽

Attentional Orienting ◽

Emotional States ◽

Sequence Effect ◽

Emotion Induction ◽

Before And After

Abstract. This study measured the effect of emotional states on lexical decision task performance and investigated which underlying components (physiological, attentional orienting, executive, lexical, and/or strategic) are affected. We did this by assessing participants’ performance on a lexical decision task, which they completed before and after an emotional state induction task. The sequence effect, usually produced when participants repeat a task, was significantly smaller in participants who had received one of the three emotion inductions (happiness, sadness, embarrassment) than in control group participants (neutral induction). Using the diffusion model ( Ratcliff, 1978 ) to resolve the data into meaningful parameters that correspond to specific psychological components, we found that emotion induction only modulated the parameter reflecting the physiological and/or attentional orienting components, whereas the executive, lexical, and strategic components were not altered. These results suggest that emotional states have an impact on the low-level mechanisms underlying mental chronometric tasks.

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Associations Between Self-Report of Emotional State and the EEG Patterns in Affective Disorders Patients

Journal of Psychophysiology ◽

10.1027/0269-8803/a000004 ◽

2010 ◽

Vol 24 (1) ◽

pp. 33-40 ◽

Cited By ~ 7

Author(s):

Miroslaw Wyczesany ◽

Jan Kaiser ◽

Anton M. L. Coenen

Keyword(s):

State Energy ◽

Emotional State ◽

Spectral Power ◽

Bipolar Affective Disorder ◽

Affective State ◽

Manic Episode ◽

High Energy ◽

Self Report ◽

Major Depressive ◽

High Tension

The study determines the associations between self-report of ongoing emotional state and EEG patterns. A group of 31 hospitalized patients were enrolled with three types of diagnosis: major depressive disorder, manic episode of bipolar affective disorder, and nonaffective patients. The Thayer ADACL checklist, which yields two subjective dimensions, was used for the assessment of affective state: Energy Tiredness (ET) and Tension Calmness (TC). Quantitative analysis of EEG was based on EEG spectral power and laterality coefficient (LC). Only the ET scale showed relationships with the laterality coefficient. The high-energy group showed right shift of activity in frontocentral and posterior areas visible in alpha and beta range, respectively. No effect of ET estimation on prefrontal asymmetry was observed. For the TC scale, an estimation of high tension was related to right prefrontal dominance and right posterior activation in beta1 band. Also, decrease of alpha2 power together with increase of beta2 power was observed over the entire scalp.

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Feel Thine Own Self – Mood Congruency Evaluation of Emotional State Adjectives

Journal of Psychophysiology ◽

10.1027/0269-8803/a000272 ◽

2020 ◽

pp. 1-17

Author(s):

Szczepan J. Grzybowski ◽

Miroslaw Wyczesany ◽

Jan Kaiser

Keyword(s):

Mood Induction ◽

Semantic Analysis ◽

Emotional State ◽

Time Window ◽

Event Related Potential ◽

Negativity Bias ◽

Positive Potential ◽

Semantic Access ◽

Current Mood ◽

Component Time

Abstract. The goal of the study was to explore event-related potential (ERP) differences during the processing of emotional adjectives that were evaluated as congruent or incongruent with the current mood. We hypothesized that the first effects of congruence evaluation would be evidenced during the earliest stages of semantic analysis. Sixty mood adjectives were presented separately for 1,000 ms each during two sessions of mood induction. After each presentation, participants evaluated to what extent the word described their mood. The results pointed to incongruence marking of adjective’s meaning with current mood during early attention orientation and semantic access stages (the P150 component time window). This was followed by enhanced processing of congruent words at later stages. As a secondary goal the study also explored word valence effects and their relation to congruence evaluation. In this regard, no significant effects were observed on the ERPs; however, a negativity bias (enhanced responses to negative adjectives) was noted on the behavioral data (RTs), which could correspond to the small differences traced on the late positive potential.

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