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116 - Can the time needed to process visual information following a saccade be used to predict variations in neural measures of working memory and well-being?

2021-04

2024-07

BIAL Foundation Archive
- BIAL Grants
  - 2020 Grants
    - 116 - Can the time needed to process visual information following a saccade be used to predict variations in neural measures of working memory and well-being?

Reference code:	PT/FB
Entity holding:	BIAL Foundation
Location:	S. Mamede do Coronado
Title:	BIAL Foundation Archive
Start date:	1994
History:	The BIAL Foundation was created in 1994 by Laboratórios BIAL in conjunction with the Council of Rectors of Portuguese Universities. BIAL’s Foundation mission is to foster the scientific study of Man from both the physical and spiritual perspectives. Along the years the BIAL Foundation has developed an important relationship with the scientific community, first in Portugal and after worldwide. Today it is an institution of reference which aims to stimulate new researches that may help people, promote more health and contribute to new milestones to gain access to knowledge. Among its activities the BIAL Foundation manages the BIAL Award, created in 1984, one of the most important awards in the Health field in Europe. The BIAL Award rewards both the basic and the clinical research distinguishing works of major impact in medical research. The BIAL Foundation also assigns Scientific Research Scholarships for the study of neurophysiological and mental health in people, arousing the interest of researchers in the areas of Psychophysiology and Parapsychology. To date the BIAL Foundation has supported 461 projects, more than 1000 researchers, with research groups in twenty-seven countries, resulting, until April 2013, in about 600 full papers, out of which 172 published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665). Since 1996 the BIAL Foundation organizes the Symposia entitled "Behind and Beyond the Brain", a Forum that gathers well renowned neurosciences speakers and the BIAL Foundation Fellows which are spread around the world. Classified as an institution of public utility, the BIAL Foundation includes among its patrons the Portuguese President, the Portuguese Universities Rectors' Council and the Portuguese Medical Association.
URL:	http://www.bial.com/pt/
Accessibility:	By permission

Reference code:	PT/FB/BL
Entity holding:	BIAL Foundation
Title:	BIAL Grants
Start date:	1994
History:	In 1994 the BIAL Foundation launched a programme of science research grants with the aim of encouraging the research into Man’s physical and mental processes, namely in fields still largely unexplored but which warrant further scientific analysis, as Psychophysiology and Parapsychology. Since its launch, applications to the BIAL grants have been increasing. Up to now 461 projects have been supported, involving more than 1000 researchers from 27 countries. The approved applications have benefited from grants in amounts comprised between €5,000 and €50, 000. The amount to be granted is fixed by the Scientific board according to the needs of each project. The supported projects have originated, until April 2013, in about 600 full papers, 172 out of which were published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665). Among the BIAL Foundation fellows is worth highlighting the presence of scientists from prestigious universities from the United States, United Kingdom, Australia, Russia, Germany, Japan, France, Canada, and many others. The BIAL grants are promoted biannually.

Reference code:	PT/FB/BL-2020
Location:	BF-GMS
Title:	2020 Grants
Start date:	2021-01

Reference code:	PT/FB/BL-2020-116
Location:	BF-GMS
Title:	116 - Can the time needed to process visual information following a saccade be used to predict variations in neural measures of working memory and well-being?
Duration:	2021-04 - 2024-07
Researcher(s):	Corinna Haenschel, John Barbur, Emsal Llapashtica
Institution(s):	Department of Psychology, City, University of London (UK)
Contents:	Contents: Application form Correspondence Research Funding Agreement Progress report Final report Articles
Language:	eng
Author:	Haenschel, C.
Secondary author(s):	Barbur, J., Llapashtica, E.
Number of reproductions:	1
Keywords:	visual information / Memory / Psychophysiology

Document

Reduced visual function in schizotypal traits: An exploratory study

2025

BIAL Foundation Archive
- BIAL Grants
  - 2020 Grants
    - 116 - Can the time needed to process visual information following a saccade be used to predict variations in neural measures of working memory and well-being?
      - Reduced visual function in schizotypal traits: An exploratory study

Reference code:	PT/FB
Entity holding:	BIAL Foundation
Location:	S. Mamede do Coronado
Title:	BIAL Foundation Archive
Start date:	1994
History:	The BIAL Foundation was created in 1994 by Laboratórios BIAL in conjunction with the Council of Rectors of Portuguese Universities. BIAL’s Foundation mission is to foster the scientific study of Man from both the physical and spiritual perspectives. Along the years the BIAL Foundation has developed an important relationship with the scientific community, first in Portugal and after worldwide. Today it is an institution of reference which aims to stimulate new researches that may help people, promote more health and contribute to new milestones to gain access to knowledge. Among its activities the BIAL Foundation manages the BIAL Award, created in 1984, one of the most important awards in the Health field in Europe. The BIAL Award rewards both the basic and the clinical research distinguishing works of major impact in medical research. The BIAL Foundation also assigns Scientific Research Scholarships for the study of neurophysiological and mental health in people, arousing the interest of researchers in the areas of Psychophysiology and Parapsychology. To date the BIAL Foundation has supported 461 projects, more than 1000 researchers, with research groups in twenty-seven countries, resulting, until April 2013, in about 600 full papers, out of which 172 published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665). Since 1996 the BIAL Foundation organizes the Symposia entitled "Behind and Beyond the Brain", a Forum that gathers well renowned neurosciences speakers and the BIAL Foundation Fellows which are spread around the world. Classified as an institution of public utility, the BIAL Foundation includes among its patrons the Portuguese President, the Portuguese Universities Rectors' Council and the Portuguese Medical Association.
URL:	http://www.bial.com/pt/
Accessibility:	By permission

Reference code:	PT/FB/BL
Entity holding:	BIAL Foundation
Title:	BIAL Grants
Start date:	1994
History:	In 1994 the BIAL Foundation launched a programme of science research grants with the aim of encouraging the research into Man’s physical and mental processes, namely in fields still largely unexplored but which warrant further scientific analysis, as Psychophysiology and Parapsychology. Since its launch, applications to the BIAL grants have been increasing. Up to now 461 projects have been supported, involving more than 1000 researchers from 27 countries. The approved applications have benefited from grants in amounts comprised between €5,000 and €50, 000. The amount to be granted is fixed by the Scientific board according to the needs of each project. The supported projects have originated, until April 2013, in about 600 full papers, 172 out of which were published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665). Among the BIAL Foundation fellows is worth highlighting the presence of scientists from prestigious universities from the United States, United Kingdom, Australia, Russia, Germany, Japan, France, Canada, and many others. The BIAL grants are promoted biannually.

Reference code:	PT/FB/BL-2020
Location:	BF-GMS
Title:	2020 Grants
Start date:	2021-01

Reference code:	PT/FB/BL-2020-116
Location:	BF-GMS
Title:	116 - Can the time needed to process visual information following a saccade be used to predict variations in neural measures of working memory and well-being?
Duration:	2021-04 - 2024-07
Researcher(s):	Corinna Haenschel, John Barbur, Emsal Llapashtica
Institution(s):	Department of Psychology, City, University of London (UK)
Contents:	Contents: Application form Correspondence Research Funding Agreement Progress report Final report Articles
Language:	eng
Author:	Haenschel, C.
Secondary author(s):	Barbur, J., Llapashtica, E.
Number of reproductions:	1
Keywords:	visual information / Memory / Psychophysiology

Reference code:	PT/FB/BL-2020-116.02
Location:	BF-GMS
Title:	Reduced visual function in schizotypal traits: An exploratory study
Publication year:	2025
URL:	https://doi.org/10.1093/schbul/sbae049
Abstract/Results:	Abstract Background and Hypothesis: Visual impairments have been proposed as risk factors for psychotic symptoms and illnesses. Visual impairments can considerably impact peoples’ daily lives, but little is known about the impact and diagnostic sensitivity of such abnormalities for schizotypal personality traits. This study aims to explore possible relationships between schizotypy and visual acuity, contrast sensitivity and parameters that describe eye movements and visual processing times. Study Design: Schizotypy was assessed in thirty-seven participants with the Multidimensional Schizotypy ScaleBrief (MSS-B). For the visual function measures we used the Acuity-Plus test and the new Eye Movement and Integrated Saccade Latency (EMAIL) test. The latter measures oculomotor performance during an eye movement task, including the visual processing time at the end of each saccade. Study Results: The disorganised dimension of the schizotypy scores predicted visual acuity when measured with black optotypes. Additionally, we found that participants who had higher disorganised scores showed an increased response variability, as assessed through the goodness of fit measure from the EMAIL test. Conclusions: These results from this exploratory study extend upon earlier findings from both general and patient samples, highlighting the clinical and subclinical importance of understanding how spatial vision can be affected in people with schizotypal disorganised behaviour.
Accessibility:	Document does not exists in file
Language:	eng
Author:	Llapashtica, E.
Secondary author(s):	Barbur, J. , Haenschel, C.
Document type:	Article
Number of reproductions:	1
Reference:	Llapashtica, E., Barbur, J. & Haenschel, C. (2025). Reduced visual function in schizotypal traits: An exploratory study. Schizophrenia Bulletin, 51(2), S205-S213. https://doi.org/10.1093/schbul/sbae049
2-year Impact Factor:	5.3\|2023
Impact factor notes:	Impact factor not available yet for 2025
Times cited:	0\|2025-03-28
Indexed document:	Yes
Quartile:	Q1
Keywords:	Schizotypy / Visual acuity / Anomalous perceptions / Anomalous perceptions

Document

Final report - Can the time needed to process visual information following a saccade be used to predict variations in neural measures of working memory and well-being?

2024

BIAL Foundation Archive
- BIAL Grants
  - 2020 Grants
    - 116 - Can the time needed to process visual information following a saccade be used to predict variations in neural measures of working memory and well-being?
      - Final report - Can the time needed to process visual information following a saccade be used to predict variations in neural measures of working memory and well-being?

Reference code:	PT/FB
Entity holding:	BIAL Foundation
Location:	S. Mamede do Coronado
Title:	BIAL Foundation Archive
Start date:	1994
History:	The BIAL Foundation was created in 1994 by Laboratórios BIAL in conjunction with the Council of Rectors of Portuguese Universities. BIAL’s Foundation mission is to foster the scientific study of Man from both the physical and spiritual perspectives. Along the years the BIAL Foundation has developed an important relationship with the scientific community, first in Portugal and after worldwide. Today it is an institution of reference which aims to stimulate new researches that may help people, promote more health and contribute to new milestones to gain access to knowledge. Among its activities the BIAL Foundation manages the BIAL Award, created in 1984, one of the most important awards in the Health field in Europe. The BIAL Award rewards both the basic and the clinical research distinguishing works of major impact in medical research. The BIAL Foundation also assigns Scientific Research Scholarships for the study of neurophysiological and mental health in people, arousing the interest of researchers in the areas of Psychophysiology and Parapsychology. To date the BIAL Foundation has supported 461 projects, more than 1000 researchers, with research groups in twenty-seven countries, resulting, until April 2013, in about 600 full papers, out of which 172 published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665). Since 1996 the BIAL Foundation organizes the Symposia entitled "Behind and Beyond the Brain", a Forum that gathers well renowned neurosciences speakers and the BIAL Foundation Fellows which are spread around the world. Classified as an institution of public utility, the BIAL Foundation includes among its patrons the Portuguese President, the Portuguese Universities Rectors' Council and the Portuguese Medical Association.
URL:	http://www.bial.com/pt/
Accessibility:	By permission

Reference code:	PT/FB/BL
Entity holding:	BIAL Foundation
Title:	BIAL Grants
Start date:	1994
History:	In 1994 the BIAL Foundation launched a programme of science research grants with the aim of encouraging the research into Man’s physical and mental processes, namely in fields still largely unexplored but which warrant further scientific analysis, as Psychophysiology and Parapsychology. Since its launch, applications to the BIAL grants have been increasing. Up to now 461 projects have been supported, involving more than 1000 researchers from 27 countries. The approved applications have benefited from grants in amounts comprised between €5,000 and €50, 000. The amount to be granted is fixed by the Scientific board according to the needs of each project. The supported projects have originated, until April 2013, in about 600 full papers, 172 out of which were published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665). Among the BIAL Foundation fellows is worth highlighting the presence of scientists from prestigious universities from the United States, United Kingdom, Australia, Russia, Germany, Japan, France, Canada, and many others. The BIAL grants are promoted biannually.

Reference code:	PT/FB/BL-2020
Location:	BF-GMS
Title:	2020 Grants
Start date:	2021-01

Reference code:	PT/FB/BL-2020-116
Location:	BF-GMS
Title:	116 - Can the time needed to process visual information following a saccade be used to predict variations in neural measures of working memory and well-being?
Duration:	2021-04 - 2024-07
Researcher(s):	Corinna Haenschel, John Barbur, Emsal Llapashtica
Institution(s):	Department of Psychology, City, University of London (UK)
Contents:	Contents: Application form Correspondence Research Funding Agreement Progress report Final report Articles
Language:	eng
Author:	Haenschel, C.
Secondary author(s):	Barbur, J., Llapashtica, E.
Number of reproductions:	1
Keywords:	visual information / Memory / Psychophysiology

Reference code:	PT/FB/BL-2020-116.01
Location:	BF-GMS
Title:	Final report - Can the time needed to process visual information following a saccade be used to predict variations in neural measures of working memory and well-being?
Publication year:	2024
Abstract/Results:	ABSTRACT: Background Distorted perceptual experience have been proposed as a risk factor for psychotic symptoms and illnesses, but little is known about its relationship with schizotypal personality traits in the general population. In addition, it has been suggested that early visual processes are important for higher cognitive functioning (like working memory) known to be impaired in the schizophrenia spectrum. Aims Here we investigated a) the relationship between fundamental visual processing (visual acuity, contrast sensitivity and eye-movement related visual processing) and schizotypy and b) the degree to which visual acuity and contrast sensitivity predict working memory performance. Method We first measured (in 37 participants) visual acuity and contrast sensitivity using the Acuity-Plus test, visual processing time and eye-movements with the Eye Movement and Integrated Saccade Latency test and schizotypy with the Multidimensional Schizotypy Scale-Brief. In a second experiment using EEG (in 26 participants), we also measured ERPs during a working memory task. Results The first experiment found that the disorganised dimension of schizotypy predicted visual acuity. The second experiment showed a relationship between visual acuity and neural measures of working memory. Conclusions These results of the two experiments suggest that first diminished visual acuity may serve as a relevant biomarker in schizophrenia and schizotypy. It highlights the clinical and subclinical importance of understanding how vision can be affected in people with schizotypal behaviour. Second, the results also showed the importance of basic visual processes for being able to maintain information in working memory and may underlie their impairment.
Accessibility:	Document exists in file
Language:	eng
Author:	Haenschel, C.
Document type:	Final report
Number of reproductions:	1
Reference:	Haenschel, C. (2024). Final report - Can the time needed to process visual information following a saccade be used to predict variations in neural measures of working memory and well-being?
Indexed document:	No
Keywords:	EEG / Visual acuity / Eye-movements / Working memory / Schizotypy
Final report - Can the time needed to process visual information following a saccade be used to predict variations in neural measures of working memory and well-being?

Document

Effects of post-saccadic oscillations on visual processing times

2024

BIAL Foundation Archive
- BIAL Grants
  - 2020 Grants
    - 116 - Can the time needed to process visual information following a saccade be used to predict variations in neural measures of working memory and well-being?
      - Effects of post-saccadic oscillations on visual processing times

Reference code:	PT/FB
Entity holding:	BIAL Foundation
Location:	S. Mamede do Coronado
Title:	BIAL Foundation Archive
Start date:	1994
History:	The BIAL Foundation was created in 1994 by Laboratórios BIAL in conjunction with the Council of Rectors of Portuguese Universities. BIAL’s Foundation mission is to foster the scientific study of Man from both the physical and spiritual perspectives. Along the years the BIAL Foundation has developed an important relationship with the scientific community, first in Portugal and after worldwide. Today it is an institution of reference which aims to stimulate new researches that may help people, promote more health and contribute to new milestones to gain access to knowledge. Among its activities the BIAL Foundation manages the BIAL Award, created in 1984, one of the most important awards in the Health field in Europe. The BIAL Award rewards both the basic and the clinical research distinguishing works of major impact in medical research. The BIAL Foundation also assigns Scientific Research Scholarships for the study of neurophysiological and mental health in people, arousing the interest of researchers in the areas of Psychophysiology and Parapsychology. To date the BIAL Foundation has supported 461 projects, more than 1000 researchers, with research groups in twenty-seven countries, resulting, until April 2013, in about 600 full papers, out of which 172 published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665). Since 1996 the BIAL Foundation organizes the Symposia entitled "Behind and Beyond the Brain", a Forum that gathers well renowned neurosciences speakers and the BIAL Foundation Fellows which are spread around the world. Classified as an institution of public utility, the BIAL Foundation includes among its patrons the Portuguese President, the Portuguese Universities Rectors' Council and the Portuguese Medical Association.
URL:	http://www.bial.com/pt/
Accessibility:	By permission

Reference code:	PT/FB/BL
Entity holding:	BIAL Foundation
Title:	BIAL Grants
Start date:	1994
History:	In 1994 the BIAL Foundation launched a programme of science research grants with the aim of encouraging the research into Man’s physical and mental processes, namely in fields still largely unexplored but which warrant further scientific analysis, as Psychophysiology and Parapsychology. Since its launch, applications to the BIAL grants have been increasing. Up to now 461 projects have been supported, involving more than 1000 researchers from 27 countries. The approved applications have benefited from grants in amounts comprised between €5,000 and €50, 000. The amount to be granted is fixed by the Scientific board according to the needs of each project. The supported projects have originated, until April 2013, in about 600 full papers, 172 out of which were published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665). Among the BIAL Foundation fellows is worth highlighting the presence of scientists from prestigious universities from the United States, United Kingdom, Australia, Russia, Germany, Japan, France, Canada, and many others. The BIAL grants are promoted biannually.

Reference code:	PT/FB/BL-2020
Location:	BF-GMS
Title:	2020 Grants
Start date:	2021-01

Reference code:	PT/FB/BL-2020-116
Location:	BF-GMS
Title:	116 - Can the time needed to process visual information following a saccade be used to predict variations in neural measures of working memory and well-being?
Duration:	2021-04 - 2024-07
Researcher(s):	Corinna Haenschel, John Barbur, Emsal Llapashtica
Institution(s):	Department of Psychology, City, University of London (UK)
Contents:	Contents: Application form Correspondence Research Funding Agreement Progress report Final report Articles
Language:	eng
Author:	Haenschel, C.
Secondary author(s):	Barbur, J., Llapashtica, E.
Number of reproductions:	1
Keywords:	visual information / Memory / Psychophysiology

Reference code:	PT/FB/BL-2020-116.03
Location:	BF-GMS
Title:	Effects of post-saccadic oscillations on visual processing times
Publication year:	2024
URL:	https://doi.org/10.1371/journal.pone.0302459
Abstract/Results:	Abstract Saccadic eye movements enable us to search for the target of interest in a crowded scene or, in the case of goal-directed saccades, to simply bring the image of the peripheral target to the very centre of the fovea. This mechanism extends the use of the superior image processing performance of the fovea over a large visual field. We know that visual information is processed quickly at the end of each saccade but estimates of the times involved remain controversial. This study aims to investigate the processing of visual information during post fixation oscillations of the eyeball. A new psychophysical test measures the combined eye movement response latencies, including fixation duration and visual processing times. When the test is used in conjunction with an eye tracker, each component that makes up the ‘integrated saccade latency’ time, from the onset of the peripheral stimulus to the correct interpretation of the information carried by the stimulus, can be measured and the discrete components delineated. The results show that the time required to process and encode the stimulus attribute of interest at the end of a saccade is longer than the time needed to carry out the same task in the absence of an eye movement. We propose two principal hypotheses, each of which can account for this finding. 1. The known inhibition of afferent retinal signals during fast eye movements extends beyond the end point of the saccade. 2. The extended visual processing times measured when saccades are involved are caused by the transient loss of spatial resolution due to eyeball instability during post-saccadic oscillations. The latter can best be described as retinal image smear with greater loss of spatial resolution expected for stimuli of low luminance contrast.
Accessibility:	Document exists in file
Language:	eng
Author:	Llapashtica, E.
Secondary author(s):	Sun, T., Grattan, K. T. V., Barbur, J. L.
Document type:	Article
Number of reproductions:	1
Reference:	Llapashtica, E., Sun, T., Grattan, K. T. V., & Barbur, J. L. (2024). Effects of post-saccadic oscillations on visual processing times. PLoS ONE, 19(5), e0302459. https://doi.org/10.1371/journal.pone.0302459
2-year Impact Factor:	2.9\|2023
Impact factor notes:	Impact factor not available yet for 2024
Times cited:	1\|2025-02-19
Indexed document:	Yes
Quartile:	Q1
Keywords:	Eye movements / Vision / Eyes / Time measurement / Luminance / Reaction time / Visual acuity / Attention
Effects of post-saccadic oscillations on visual processing times