Cognitive mapping deficits in schizophrenia: Evidence from clinical correlates of visuospatial transformations
The ‘cognitive mapping’ component of spatial cognition, namely – the allocentric/egocentric function and its relation to symptoms in schizophrenia is relatively unexplored. In this study, we compared schizophrenia patients (N=44) to demographically-matched healthy controls (N=43) using computer-admi...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Agarwal, Sri Mahavir [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2015transfer abstract |
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| Schlagwörter: |
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| Umfang: |
8 |
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| Übergeordnetes Werk: |
Enthalten in: Magnetic solid phase extraction with CoFe2O4/oleic acid nanoparticles coupled to gas chromatography-mass spectrometry for the determination of alkylphenols in baby foods - Pastor-Belda, Marta ELSEVIER, 2017, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:228 ; year:2015 ; number:3 ; day:30 ; month:08 ; pages:304-311 ; extent:8 |
| Links: |
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| DOI / URN: |
10.1016/j.psychres.2015.05.096 |
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ELV023303050 |
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| 520 | |a The ‘cognitive mapping’ component of spatial cognition, namely – the allocentric/egocentric function and its relation to symptoms in schizophrenia is relatively unexplored. In this study, we compared schizophrenia patients (N=44) to demographically-matched healthy controls (N=43) using computer-administered visuospatial transformation tasks with egocentric and allocentric components and analyzed their correlation with symptoms. Significant diagnosis X task-type interaction effect was seen on task accuracy. Patients performed significantly worse than controls in the allocentric letter rotation task (LRT) but not in the egocentric people rotation task (PRT). Accuracy in the LRT was significantly lesser than in PRT among patients but not among controls. Patients were significantly slower as compared to controls in both tasks. Both groups took longer to perform PRT as compared to LRT. LRT accuracy showed significant negative correlation with total positive symptoms as well as negative symptoms scores. Angle of rotation, perspective (front-facing/back-facing), orientation (mirrored/normal), and stimulus type (letter/number) were found to significantly influence performance in both groups of subjects. The present data support the finding that there is a differential impairment of allocentric abilities in schizophrenia patients. Further systematic research in this area may facilitate better understanding of schizophrenia pathogenesis. | ||
| 520 | |a The ‘cognitive mapping’ component of spatial cognition, namely – the allocentric/egocentric function and its relation to symptoms in schizophrenia is relatively unexplored. In this study, we compared schizophrenia patients (N=44) to demographically-matched healthy controls (N=43) using computer-administered visuospatial transformation tasks with egocentric and allocentric components and analyzed their correlation with symptoms. Significant diagnosis X task-type interaction effect was seen on task accuracy. Patients performed significantly worse than controls in the allocentric letter rotation task (LRT) but not in the egocentric people rotation task (PRT). Accuracy in the LRT was significantly lesser than in PRT among patients but not among controls. Patients were significantly slower as compared to controls in both tasks. Both groups took longer to perform PRT as compared to LRT. LRT accuracy showed significant negative correlation with total positive symptoms as well as negative symptoms scores. Angle of rotation, perspective (front-facing/back-facing), orientation (mirrored/normal), and stimulus type (letter/number) were found to significantly influence performance in both groups of subjects. The present data support the finding that there is a differential impairment of allocentric abilities in schizophrenia patients. Further systematic research in this area may facilitate better understanding of schizophrenia pathogenesis. | ||
| 650 | 7 | |a Mental rotation |2 Elsevier | |
| 650 | 7 | |a Allocentric |2 Elsevier | |
| 650 | 7 | |a Cognitive mapping |2 Elsevier | |
| 650 | 7 | |a Schizophrenia |2 Elsevier | |
| 650 | 7 | |a Egocentric |2 Elsevier | |
| 650 | 7 | |a Perspective taking |2 Elsevier | |
| 700 | 1 | |a Danivas, Vijay |4 oth | |
| 700 | 1 | |a Amaresha, Anekal C. |4 oth | |
| 700 | 1 | |a Shivakumar, Venkataram |4 oth | |
| 700 | 1 | |a Kalmady, Sunil V. |4 oth | |
| 700 | 1 | |a Bose, Anushree |4 oth | |
| 700 | 1 | |a Narayanaswamy, Janardhanan C. |4 oth | |
| 700 | 1 | |a Venkatasubramanian, Ganesan |4 oth | |
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10.1016/j.psychres.2015.05.096 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001374.pica (DE-627)ELV023303050 (ELSEVIER)S0165-1781(15)00411-4 DE-627 ger DE-627 rakwb eng 540 VZ 660 VZ 540 VZ 35.00 bkl Agarwal, Sri Mahavir verfasserin aut Cognitive mapping deficits in schizophrenia: Evidence from clinical correlates of visuospatial transformations 2015transfer abstract 8 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The ‘cognitive mapping’ component of spatial cognition, namely – the allocentric/egocentric function and its relation to symptoms in schizophrenia is relatively unexplored. In this study, we compared schizophrenia patients (N=44) to demographically-matched healthy controls (N=43) using computer-administered visuospatial transformation tasks with egocentric and allocentric components and analyzed their correlation with symptoms. Significant diagnosis X task-type interaction effect was seen on task accuracy. Patients performed significantly worse than controls in the allocentric letter rotation task (LRT) but not in the egocentric people rotation task (PRT). Accuracy in the LRT was significantly lesser than in PRT among patients but not among controls. Patients were significantly slower as compared to controls in both tasks. Both groups took longer to perform PRT as compared to LRT. LRT accuracy showed significant negative correlation with total positive symptoms as well as negative symptoms scores. Angle of rotation, perspective (front-facing/back-facing), orientation (mirrored/normal), and stimulus type (letter/number) were found to significantly influence performance in both groups of subjects. The present data support the finding that there is a differential impairment of allocentric abilities in schizophrenia patients. Further systematic research in this area may facilitate better understanding of schizophrenia pathogenesis. The ‘cognitive mapping’ component of spatial cognition, namely – the allocentric/egocentric function and its relation to symptoms in schizophrenia is relatively unexplored. In this study, we compared schizophrenia patients (N=44) to demographically-matched healthy controls (N=43) using computer-administered visuospatial transformation tasks with egocentric and allocentric components and analyzed their correlation with symptoms. Significant diagnosis X task-type interaction effect was seen on task accuracy. Patients performed significantly worse than controls in the allocentric letter rotation task (LRT) but not in the egocentric people rotation task (PRT). Accuracy in the LRT was significantly lesser than in PRT among patients but not among controls. Patients were significantly slower as compared to controls in both tasks. Both groups took longer to perform PRT as compared to LRT. LRT accuracy showed significant negative correlation with total positive symptoms as well as negative symptoms scores. Angle of rotation, perspective (front-facing/back-facing), orientation (mirrored/normal), and stimulus type (letter/number) were found to significantly influence performance in both groups of subjects. The present data support the finding that there is a differential impairment of allocentric abilities in schizophrenia patients. Further systematic research in this area may facilitate better understanding of schizophrenia pathogenesis. Mental rotation Elsevier Allocentric Elsevier Cognitive mapping Elsevier Schizophrenia Elsevier Egocentric Elsevier Perspective taking Elsevier Danivas, Vijay oth Amaresha, Anekal C. oth Shivakumar, Venkataram oth Kalmady, Sunil V. oth Bose, Anushree oth Narayanaswamy, Janardhanan C. oth Venkatasubramanian, Ganesan oth Enthalten in Elsevier Science Pastor-Belda, Marta ELSEVIER Magnetic solid phase extraction with CoFe2O4/oleic acid nanoparticles coupled to gas chromatography-mass spectrometry for the determination of alkylphenols in baby foods 2017 Amsterdam [u.a.] (DE-627)ELV015015122 volume:228 year:2015 number:3 day:30 month:08 pages:304-311 extent:8 https://doi.org/10.1016/j.psychres.2015.05.096 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 35.00 Chemie: Allgemeines VZ AR 228 2015 3 30 0830 304-311 8 |
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10.1016/j.psychres.2015.05.096 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001374.pica (DE-627)ELV023303050 (ELSEVIER)S0165-1781(15)00411-4 DE-627 ger DE-627 rakwb eng 540 VZ 660 VZ 540 VZ 35.00 bkl Agarwal, Sri Mahavir verfasserin aut Cognitive mapping deficits in schizophrenia: Evidence from clinical correlates of visuospatial transformations 2015transfer abstract 8 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The ‘cognitive mapping’ component of spatial cognition, namely – the allocentric/egocentric function and its relation to symptoms in schizophrenia is relatively unexplored. In this study, we compared schizophrenia patients (N=44) to demographically-matched healthy controls (N=43) using computer-administered visuospatial transformation tasks with egocentric and allocentric components and analyzed their correlation with symptoms. Significant diagnosis X task-type interaction effect was seen on task accuracy. Patients performed significantly worse than controls in the allocentric letter rotation task (LRT) but not in the egocentric people rotation task (PRT). Accuracy in the LRT was significantly lesser than in PRT among patients but not among controls. Patients were significantly slower as compared to controls in both tasks. Both groups took longer to perform PRT as compared to LRT. LRT accuracy showed significant negative correlation with total positive symptoms as well as negative symptoms scores. Angle of rotation, perspective (front-facing/back-facing), orientation (mirrored/normal), and stimulus type (letter/number) were found to significantly influence performance in both groups of subjects. The present data support the finding that there is a differential impairment of allocentric abilities in schizophrenia patients. Further systematic research in this area may facilitate better understanding of schizophrenia pathogenesis. The ‘cognitive mapping’ component of spatial cognition, namely – the allocentric/egocentric function and its relation to symptoms in schizophrenia is relatively unexplored. In this study, we compared schizophrenia patients (N=44) to demographically-matched healthy controls (N=43) using computer-administered visuospatial transformation tasks with egocentric and allocentric components and analyzed their correlation with symptoms. Significant diagnosis X task-type interaction effect was seen on task accuracy. Patients performed significantly worse than controls in the allocentric letter rotation task (LRT) but not in the egocentric people rotation task (PRT). Accuracy in the LRT was significantly lesser than in PRT among patients but not among controls. Patients were significantly slower as compared to controls in both tasks. Both groups took longer to perform PRT as compared to LRT. LRT accuracy showed significant negative correlation with total positive symptoms as well as negative symptoms scores. Angle of rotation, perspective (front-facing/back-facing), orientation (mirrored/normal), and stimulus type (letter/number) were found to significantly influence performance in both groups of subjects. The present data support the finding that there is a differential impairment of allocentric abilities in schizophrenia patients. Further systematic research in this area may facilitate better understanding of schizophrenia pathogenesis. Mental rotation Elsevier Allocentric Elsevier Cognitive mapping Elsevier Schizophrenia Elsevier Egocentric Elsevier Perspective taking Elsevier Danivas, Vijay oth Amaresha, Anekal C. oth Shivakumar, Venkataram oth Kalmady, Sunil V. oth Bose, Anushree oth Narayanaswamy, Janardhanan C. oth Venkatasubramanian, Ganesan oth Enthalten in Elsevier Science Pastor-Belda, Marta ELSEVIER Magnetic solid phase extraction with CoFe2O4/oleic acid nanoparticles coupled to gas chromatography-mass spectrometry for the determination of alkylphenols in baby foods 2017 Amsterdam [u.a.] (DE-627)ELV015015122 volume:228 year:2015 number:3 day:30 month:08 pages:304-311 extent:8 https://doi.org/10.1016/j.psychres.2015.05.096 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 35.00 Chemie: Allgemeines VZ AR 228 2015 3 30 0830 304-311 8 |
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10.1016/j.psychres.2015.05.096 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001374.pica (DE-627)ELV023303050 (ELSEVIER)S0165-1781(15)00411-4 DE-627 ger DE-627 rakwb eng 540 VZ 660 VZ 540 VZ 35.00 bkl Agarwal, Sri Mahavir verfasserin aut Cognitive mapping deficits in schizophrenia: Evidence from clinical correlates of visuospatial transformations 2015transfer abstract 8 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The ‘cognitive mapping’ component of spatial cognition, namely – the allocentric/egocentric function and its relation to symptoms in schizophrenia is relatively unexplored. In this study, we compared schizophrenia patients (N=44) to demographically-matched healthy controls (N=43) using computer-administered visuospatial transformation tasks with egocentric and allocentric components and analyzed their correlation with symptoms. Significant diagnosis X task-type interaction effect was seen on task accuracy. Patients performed significantly worse than controls in the allocentric letter rotation task (LRT) but not in the egocentric people rotation task (PRT). Accuracy in the LRT was significantly lesser than in PRT among patients but not among controls. Patients were significantly slower as compared to controls in both tasks. Both groups took longer to perform PRT as compared to LRT. LRT accuracy showed significant negative correlation with total positive symptoms as well as negative symptoms scores. Angle of rotation, perspective (front-facing/back-facing), orientation (mirrored/normal), and stimulus type (letter/number) were found to significantly influence performance in both groups of subjects. The present data support the finding that there is a differential impairment of allocentric abilities in schizophrenia patients. Further systematic research in this area may facilitate better understanding of schizophrenia pathogenesis. The ‘cognitive mapping’ component of spatial cognition, namely – the allocentric/egocentric function and its relation to symptoms in schizophrenia is relatively unexplored. In this study, we compared schizophrenia patients (N=44) to demographically-matched healthy controls (N=43) using computer-administered visuospatial transformation tasks with egocentric and allocentric components and analyzed their correlation with symptoms. Significant diagnosis X task-type interaction effect was seen on task accuracy. Patients performed significantly worse than controls in the allocentric letter rotation task (LRT) but not in the egocentric people rotation task (PRT). Accuracy in the LRT was significantly lesser than in PRT among patients but not among controls. Patients were significantly slower as compared to controls in both tasks. Both groups took longer to perform PRT as compared to LRT. LRT accuracy showed significant negative correlation with total positive symptoms as well as negative symptoms scores. Angle of rotation, perspective (front-facing/back-facing), orientation (mirrored/normal), and stimulus type (letter/number) were found to significantly influence performance in both groups of subjects. The present data support the finding that there is a differential impairment of allocentric abilities in schizophrenia patients. Further systematic research in this area may facilitate better understanding of schizophrenia pathogenesis. Mental rotation Elsevier Allocentric Elsevier Cognitive mapping Elsevier Schizophrenia Elsevier Egocentric Elsevier Perspective taking Elsevier Danivas, Vijay oth Amaresha, Anekal C. oth Shivakumar, Venkataram oth Kalmady, Sunil V. oth Bose, Anushree oth Narayanaswamy, Janardhanan C. oth Venkatasubramanian, Ganesan oth Enthalten in Elsevier Science Pastor-Belda, Marta ELSEVIER Magnetic solid phase extraction with CoFe2O4/oleic acid nanoparticles coupled to gas chromatography-mass spectrometry for the determination of alkylphenols in baby foods 2017 Amsterdam [u.a.] (DE-627)ELV015015122 volume:228 year:2015 number:3 day:30 month:08 pages:304-311 extent:8 https://doi.org/10.1016/j.psychres.2015.05.096 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 35.00 Chemie: Allgemeines VZ AR 228 2015 3 30 0830 304-311 8 |
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10.1016/j.psychres.2015.05.096 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001374.pica (DE-627)ELV023303050 (ELSEVIER)S0165-1781(15)00411-4 DE-627 ger DE-627 rakwb eng 540 VZ 660 VZ 540 VZ 35.00 bkl Agarwal, Sri Mahavir verfasserin aut Cognitive mapping deficits in schizophrenia: Evidence from clinical correlates of visuospatial transformations 2015transfer abstract 8 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The ‘cognitive mapping’ component of spatial cognition, namely – the allocentric/egocentric function and its relation to symptoms in schizophrenia is relatively unexplored. In this study, we compared schizophrenia patients (N=44) to demographically-matched healthy controls (N=43) using computer-administered visuospatial transformation tasks with egocentric and allocentric components and analyzed their correlation with symptoms. Significant diagnosis X task-type interaction effect was seen on task accuracy. Patients performed significantly worse than controls in the allocentric letter rotation task (LRT) but not in the egocentric people rotation task (PRT). Accuracy in the LRT was significantly lesser than in PRT among patients but not among controls. Patients were significantly slower as compared to controls in both tasks. Both groups took longer to perform PRT as compared to LRT. LRT accuracy showed significant negative correlation with total positive symptoms as well as negative symptoms scores. Angle of rotation, perspective (front-facing/back-facing), orientation (mirrored/normal), and stimulus type (letter/number) were found to significantly influence performance in both groups of subjects. The present data support the finding that there is a differential impairment of allocentric abilities in schizophrenia patients. Further systematic research in this area may facilitate better understanding of schizophrenia pathogenesis. The ‘cognitive mapping’ component of spatial cognition, namely – the allocentric/egocentric function and its relation to symptoms in schizophrenia is relatively unexplored. In this study, we compared schizophrenia patients (N=44) to demographically-matched healthy controls (N=43) using computer-administered visuospatial transformation tasks with egocentric and allocentric components and analyzed their correlation with symptoms. Significant diagnosis X task-type interaction effect was seen on task accuracy. Patients performed significantly worse than controls in the allocentric letter rotation task (LRT) but not in the egocentric people rotation task (PRT). Accuracy in the LRT was significantly lesser than in PRT among patients but not among controls. Patients were significantly slower as compared to controls in both tasks. Both groups took longer to perform PRT as compared to LRT. LRT accuracy showed significant negative correlation with total positive symptoms as well as negative symptoms scores. Angle of rotation, perspective (front-facing/back-facing), orientation (mirrored/normal), and stimulus type (letter/number) were found to significantly influence performance in both groups of subjects. The present data support the finding that there is a differential impairment of allocentric abilities in schizophrenia patients. Further systematic research in this area may facilitate better understanding of schizophrenia pathogenesis. Mental rotation Elsevier Allocentric Elsevier Cognitive mapping Elsevier Schizophrenia Elsevier Egocentric Elsevier Perspective taking Elsevier Danivas, Vijay oth Amaresha, Anekal C. oth Shivakumar, Venkataram oth Kalmady, Sunil V. oth Bose, Anushree oth Narayanaswamy, Janardhanan C. oth Venkatasubramanian, Ganesan oth Enthalten in Elsevier Science Pastor-Belda, Marta ELSEVIER Magnetic solid phase extraction with CoFe2O4/oleic acid nanoparticles coupled to gas chromatography-mass spectrometry for the determination of alkylphenols in baby foods 2017 Amsterdam [u.a.] (DE-627)ELV015015122 volume:228 year:2015 number:3 day:30 month:08 pages:304-311 extent:8 https://doi.org/10.1016/j.psychres.2015.05.096 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 35.00 Chemie: Allgemeines VZ AR 228 2015 3 30 0830 304-311 8 |
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10.1016/j.psychres.2015.05.096 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001374.pica (DE-627)ELV023303050 (ELSEVIER)S0165-1781(15)00411-4 DE-627 ger DE-627 rakwb eng 540 VZ 660 VZ 540 VZ 35.00 bkl Agarwal, Sri Mahavir verfasserin aut Cognitive mapping deficits in schizophrenia: Evidence from clinical correlates of visuospatial transformations 2015transfer abstract 8 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The ‘cognitive mapping’ component of spatial cognition, namely – the allocentric/egocentric function and its relation to symptoms in schizophrenia is relatively unexplored. In this study, we compared schizophrenia patients (N=44) to demographically-matched healthy controls (N=43) using computer-administered visuospatial transformation tasks with egocentric and allocentric components and analyzed their correlation with symptoms. Significant diagnosis X task-type interaction effect was seen on task accuracy. Patients performed significantly worse than controls in the allocentric letter rotation task (LRT) but not in the egocentric people rotation task (PRT). Accuracy in the LRT was significantly lesser than in PRT among patients but not among controls. Patients were significantly slower as compared to controls in both tasks. Both groups took longer to perform PRT as compared to LRT. LRT accuracy showed significant negative correlation with total positive symptoms as well as negative symptoms scores. Angle of rotation, perspective (front-facing/back-facing), orientation (mirrored/normal), and stimulus type (letter/number) were found to significantly influence performance in both groups of subjects. The present data support the finding that there is a differential impairment of allocentric abilities in schizophrenia patients. Further systematic research in this area may facilitate better understanding of schizophrenia pathogenesis. The ‘cognitive mapping’ component of spatial cognition, namely – the allocentric/egocentric function and its relation to symptoms in schizophrenia is relatively unexplored. In this study, we compared schizophrenia patients (N=44) to demographically-matched healthy controls (N=43) using computer-administered visuospatial transformation tasks with egocentric and allocentric components and analyzed their correlation with symptoms. Significant diagnosis X task-type interaction effect was seen on task accuracy. Patients performed significantly worse than controls in the allocentric letter rotation task (LRT) but not in the egocentric people rotation task (PRT). Accuracy in the LRT was significantly lesser than in PRT among patients but not among controls. Patients were significantly slower as compared to controls in both tasks. Both groups took longer to perform PRT as compared to LRT. LRT accuracy showed significant negative correlation with total positive symptoms as well as negative symptoms scores. Angle of rotation, perspective (front-facing/back-facing), orientation (mirrored/normal), and stimulus type (letter/number) were found to significantly influence performance in both groups of subjects. The present data support the finding that there is a differential impairment of allocentric abilities in schizophrenia patients. Further systematic research in this area may facilitate better understanding of schizophrenia pathogenesis. Mental rotation Elsevier Allocentric Elsevier Cognitive mapping Elsevier Schizophrenia Elsevier Egocentric Elsevier Perspective taking Elsevier Danivas, Vijay oth Amaresha, Anekal C. oth Shivakumar, Venkataram oth Kalmady, Sunil V. oth Bose, Anushree oth Narayanaswamy, Janardhanan C. oth Venkatasubramanian, Ganesan oth Enthalten in Elsevier Science Pastor-Belda, Marta ELSEVIER Magnetic solid phase extraction with CoFe2O4/oleic acid nanoparticles coupled to gas chromatography-mass spectrometry for the determination of alkylphenols in baby foods 2017 Amsterdam [u.a.] (DE-627)ELV015015122 volume:228 year:2015 number:3 day:30 month:08 pages:304-311 extent:8 https://doi.org/10.1016/j.psychres.2015.05.096 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 35.00 Chemie: Allgemeines VZ AR 228 2015 3 30 0830 304-311 8 |
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Enthalten in Magnetic solid phase extraction with CoFe2O4/oleic acid nanoparticles coupled to gas chromatography-mass spectrometry for the determination of alkylphenols in baby foods Amsterdam [u.a.] volume:228 year:2015 number:3 day:30 month:08 pages:304-311 extent:8 |
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Enthalten in Magnetic solid phase extraction with CoFe2O4/oleic acid nanoparticles coupled to gas chromatography-mass spectrometry for the determination of alkylphenols in baby foods Amsterdam [u.a.] volume:228 year:2015 number:3 day:30 month:08 pages:304-311 extent:8 |
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Magnetic solid phase extraction with CoFe2O4/oleic acid nanoparticles coupled to gas chromatography-mass spectrometry for the determination of alkylphenols in baby foods |
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Agarwal, Sri Mahavir @@aut@@ Danivas, Vijay @@oth@@ Amaresha, Anekal C. @@oth@@ Shivakumar, Venkataram @@oth@@ Kalmady, Sunil V. @@oth@@ Bose, Anushree @@oth@@ Narayanaswamy, Janardhanan C. @@oth@@ Venkatasubramanian, Ganesan @@oth@@ |
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cognitive mapping deficits in schizophrenia: evidence from clinical correlates of visuospatial transformations |
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Cognitive mapping deficits in schizophrenia: Evidence from clinical correlates of visuospatial transformations |
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The ‘cognitive mapping’ component of spatial cognition, namely – the allocentric/egocentric function and its relation to symptoms in schizophrenia is relatively unexplored. In this study, we compared schizophrenia patients (N=44) to demographically-matched healthy controls (N=43) using computer-administered visuospatial transformation tasks with egocentric and allocentric components and analyzed their correlation with symptoms. Significant diagnosis X task-type interaction effect was seen on task accuracy. Patients performed significantly worse than controls in the allocentric letter rotation task (LRT) but not in the egocentric people rotation task (PRT). Accuracy in the LRT was significantly lesser than in PRT among patients but not among controls. Patients were significantly slower as compared to controls in both tasks. Both groups took longer to perform PRT as compared to LRT. LRT accuracy showed significant negative correlation with total positive symptoms as well as negative symptoms scores. Angle of rotation, perspective (front-facing/back-facing), orientation (mirrored/normal), and stimulus type (letter/number) were found to significantly influence performance in both groups of subjects. The present data support the finding that there is a differential impairment of allocentric abilities in schizophrenia patients. Further systematic research in this area may facilitate better understanding of schizophrenia pathogenesis. |
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The ‘cognitive mapping’ component of spatial cognition, namely – the allocentric/egocentric function and its relation to symptoms in schizophrenia is relatively unexplored. In this study, we compared schizophrenia patients (N=44) to demographically-matched healthy controls (N=43) using computer-administered visuospatial transformation tasks with egocentric and allocentric components and analyzed their correlation with symptoms. Significant diagnosis X task-type interaction effect was seen on task accuracy. Patients performed significantly worse than controls in the allocentric letter rotation task (LRT) but not in the egocentric people rotation task (PRT). Accuracy in the LRT was significantly lesser than in PRT among patients but not among controls. Patients were significantly slower as compared to controls in both tasks. Both groups took longer to perform PRT as compared to LRT. LRT accuracy showed significant negative correlation with total positive symptoms as well as negative symptoms scores. Angle of rotation, perspective (front-facing/back-facing), orientation (mirrored/normal), and stimulus type (letter/number) were found to significantly influence performance in both groups of subjects. The present data support the finding that there is a differential impairment of allocentric abilities in schizophrenia patients. Further systematic research in this area may facilitate better understanding of schizophrenia pathogenesis. |
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The ‘cognitive mapping’ component of spatial cognition, namely – the allocentric/egocentric function and its relation to symptoms in schizophrenia is relatively unexplored. In this study, we compared schizophrenia patients (N=44) to demographically-matched healthy controls (N=43) using computer-administered visuospatial transformation tasks with egocentric and allocentric components and analyzed their correlation with symptoms. Significant diagnosis X task-type interaction effect was seen on task accuracy. Patients performed significantly worse than controls in the allocentric letter rotation task (LRT) but not in the egocentric people rotation task (PRT). Accuracy in the LRT was significantly lesser than in PRT among patients but not among controls. Patients were significantly slower as compared to controls in both tasks. Both groups took longer to perform PRT as compared to LRT. LRT accuracy showed significant negative correlation with total positive symptoms as well as negative symptoms scores. Angle of rotation, perspective (front-facing/back-facing), orientation (mirrored/normal), and stimulus type (letter/number) were found to significantly influence performance in both groups of subjects. The present data support the finding that there is a differential impairment of allocentric abilities in schizophrenia patients. Further systematic research in this area may facilitate better understanding of schizophrenia pathogenesis. |
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