Simple visual reaction time, personality and strength of the nervous system: A signal-detection theory approach

1985 ◽  
Vol 6 (4) ◽  
pp. 461-469 ◽  
Author(s):  
Sunjai Gupta ◽  
John Nicholson
Keyword(s):  
Nervous System ◽  
Reaction Time ◽  
Signal Detection ◽  
Signal Detection Theory ◽  
Detection Theory ◽  
Theory Approach ◽  
Visual Reaction Time ◽  
System A ◽  
Visual Reaction

scholarly journals Sonority projection effect in French: A signal detection theory approach

2021 ◽  
pp. 1-12
Author(s):  
Anahita Basirat ◽  
Cédric Patin ◽  
Jérémie Jozefowiez
Keyword(s):  
Signal Detection ◽  
Signal Detection Theory ◽  
Computational Models ◽  
Native Speakers ◽  
Detection Theory ◽  
Future Research ◽  
Theory Approach ◽  
Point Scale ◽  
Projection Effect ◽  
Measure Sensitivity

Abstract Focusing on the Sonority Sequencing Principle (SSP), we investigated the extent to which adult native speakers of French are sensitive to sonority-related constraints compared to lexical attestedness. In a non-word acceptability task, participants were asked to rate the acceptability of three types of non-words using a 6-point scale: non-words with attested sonority rising onset, non-words with unattested sonority rising onset, and non-words with unattested sonority falling onset. Data analysis was done using the signal detection theory approach to measure sensitivity of participants to lexical attestedness and to phonological well-formedness (i.e., respecting or violating the SSP). The results showed that speakers distinguished well-formed and ill-formed forms even when lexical attestedness was controlled for. This is consistent with previous findings on sonority projection effects. Participants were more sensitive to lexical attestedness than phonological well-formedness. Future research using computational models should investigate mechanisms that could account for these findings, namely whether a similar result would be obtained without including any assumption about the SSP in these models.

scholarly journals Analysis of perceived stress, cardiovascular and central nervous system changes before and after menstruation in the age group 18-22 years

2017 ◽  
Vol 5 (8) ◽  
pp. 3644
Author(s):  
Amita M. Pardeshi
Keyword(s):  
Blood Pressure ◽  
Central Nervous System ◽  
Nervous System ◽  
Reaction Time ◽  
Perceived Stress ◽  
Pulse Rate ◽  
Premenstrual Syndrome ◽  
Age Group ◽  
Visual Reaction Time ◽  
Visual Reaction

Background: Premenstrual syndrome is a set of physical, behavioural or emotional symptoms that some women experience on regular basis in relation to menstruation. Premenstrual symptoms have been associated with perceived stress, and perceived stress is the strongest predictor of premenstrual syndrome. The purpose of this study was to investigate the premenstrual stress and its effect on cardiovascular system and sensorimotor association and processing capability of central nervous system.Methods: The present study was done in 60 healthy female volunteers in age group of 18-22 years. We measured following parameters during premenstrual and postmenstrual phases- pulse rate, blood pressure, weight, auditory and visual reaction time and perceived stress with the help of Cohen’s perceived stress scale.Results: The study revealed that significant increase was observed in perceived stress, pulse rate, blood pressure, weight, auditory reaction time (ART), and visual reaction time (VRT) during premenstrual period as compared to postmenstrual period.Conclusions: These changes could be attributed to fluid and salt retention due to ovarian steroids and to exaggerated response to hormonal changes leading to decrease in the processing capability of central nervous system. It is not clear how stress may contribute to increased pre-menstrual symptom severity, although stress-induced changes in ovarian hormone levels and neurotransmitters may be involved.

Divided attention and visual search: A signal detection theory approach

2001 ◽  
Author(s):  
E. T. Davis ◽  
T. Shikano ◽  
S. Peterson ◽  
R. Keyes ◽  
C. E. Shook
Keyword(s):  
Visual Search ◽  
Signal Detection ◽  
Divided Attention ◽  
Signal Detection Theory ◽  
Detection Theory ◽  
Theory Approach

scholarly journals Sonority projection effect in French: A signal detection theory approach

2020 ◽  
Author(s):  
Anahita Basirat ◽  
Cédric Patin ◽  
Jérémie Jozefowiez
Keyword(s):  
Signal Detection ◽  
Signal Detection Theory ◽  
Computational Models ◽  
Native Speakers ◽  
Detection Theory ◽  
Future Research ◽  
Theory Approach ◽  
Point Scale ◽  
Projection Effect ◽  
Measure Sensitivity

Focusing on the Sonority Sequencing Principle, we investigated to what extent adult native speakers of French are sensitive to sonority-related constraints compared to lexical attestedness. In a non-word acceptability task, participants were asked to rate the acceptability of three types of non-words using a 6-point scale: non-words with attested sonority rising onset, non-words with unattested sonority rising onset and non-words with unattested sonority falling onset. Data analysis was done using the signal detection theory approach to measure sensitivity of participants to lexical attestedness and to phonological well-formedness (i.e. respecting or violating the Sonority Sequencing Principle). The results showed that speakers distinguished well-formed and ill-formed forms even when lexical attestedness was controlled for. This is consistent with previous findings on sonority projection effects. Participants were more sensitive to lexical attestedness than phonological well-formedness. Future research using computational models should investigate the mechanisms which could account for these findings, namely whether a similar result would be obtained without including any assumption about the Sonority Sequencing Principle in these models.

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