Plausibility assessment of a subject independent mental task-based BCI using electroencephalogram signals

2014 ◽  
Author(s):  
S. Hatamikia ◽  
A.M Nasrabadi ◽  
N. Shourie
Keyword(s):  
Mental Task

The Influence of Emotionally Relevant Context on the Evoked Cardiac Response Triggered by an Irrelevant Stimulus

2003 ◽  
Vol 17 (2) ◽  
pp. 61-68 ◽  
Author(s):  
Michal Kuniecki ◽  
Robert Barry ◽  
Jan Kaiser
Keyword(s):  
Task Performance ◽  
Auditory Stimulus ◽  
Irrelevant Stimulus ◽  
Cardiac Response ◽  
Mental Task ◽  
Negative Valence ◽  
Cardiac Deceleration ◽  
Relevant Context ◽  
Stimulus Valence ◽  
Affective Stimulus

Abstract The effect of stimulus valence was examined in the evoked cardiac response (ECR) elicited by the exposition of neutral and negative slides as well as by an innocuous auditory stimulus presented on the affective foregrounds generated by the slides. The exposition of the aversive slide produced prolonged cardiac deceleration in comparison with the neutral slide. Similar prolonged deceleration accompanied exposition of the neutral auditory stimulus on the negative visual foreground in comparison with the neutral foreground. We interpret these results as an autonomic correlate of extended stimulus processing associated with the affective stimulus. The initial deceleration response, covering two or three slower heart beats, may be prolonged for several seconds before HR reaches the baseline level again. In such a case the evoked cardiac deceleration can be functionally divided into two parts: the reflexive bradycardia (ECR1) elicited by neutral stimuli and a late decelerative component (LDC). We can speculate that the latter is associated with an additional voluntary continuation of processing of the stimulus. This must involve some cognitive aspect different from the mental task performance which leads to the accelerative ECR2, and we suggest that processing of a stimulus with negative valence is involved in generating the LDC.

J. Brodsky vs G. Sapgir: the Ways to Fill the Emptiness

2020 ◽  
pp. 23-37
Author(s):  
Irina Plekhanova
Keyword(s):  
Sensory Perception ◽  
Discrete Dynamics ◽  
Mental Task ◽  
Creative Life

The goal of comparison of J. Brodsky’s and G. Sapgir’s ideas is to show the variety of the creative life search in the poetry of the late third of the XX century. The contribution of poetry to the XX century paradigm of uncertainty –from the relativistic physics to axiology – is to fill the emptiness. The existential and mental task is to poetically feel the transcendent deeper and bring it closer via «blending ethics with metaphysics». The contrast of the artistic systems is described as a controversy between the apolloniс and dionysian, mediumistic and voluntarist principles of creation. Brodsky’s neoclassicism is comparable to Sapgir’s discrete dynamics – both poets perceived the otherness via sharp perception of life in its dialogue with the emptiness. Poetry was seen as an adequate way to achieve transcendent knowledge; creative life was looking for the images convincing that one recognized the otherness in the form of the emptiness and for the means to transmit one’s perceptions about it. The dialogue with the emptiness is presented as a visionary intrusion into otherness and a search for resonance with it. Brodsky’s contemplation sees the transition as immersion into the multidimensionality; chrono-sensory perception unfolds metaphorically. Sapgir’s mystical propensity is sensual, it engages readers in the reflection through performances, spontaneous associations open the emptiness as the fullness. The authenticity of the cognition is felt by the poets in flesh, viscerally (anxiety, vertigo, exertion, pain).

scholarly journals 2D1-3　Effects of different instructions on performance, subjective and physiological responses induced by the same mental task

2016 ◽  
Vol 52 (Supplement) ◽  
pp. S324-S325
Author(s):  
Hiroyuki KURAOKA ◽  
Chikamune WADA ◽  
Kazuki TSURUHARA ◽  
Shinji MIYAKE
Keyword(s):  
Physiological Responses ◽  
Mental Task

scholarly journals STRESS RESPONSE DURING MENTAL TASK

1971 ◽  
Vol 9 (3) ◽  
pp. 99-104
Author(s):  
Toshio KAKIZAKI
Keyword(s):  
Stress Response ◽  
Mental Task
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