Staff View: Effect of Caffeine Intake on Visual and Cognitive Functions

Effect of Caffeine Intake on Visual and Cognitive Functions

Introduction: In this paper, the effect of caffeine intake on the efficiency of the visual and cognitive processing measured through the assessment of the cognitive ERP components (i.e. P100 and P300), is studied and analyzed. This study is conducted through the measurement of amplitudes and latenci...

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Main Authors:	Raja Khairuddin, Raja Nur Hamizah, Malik, Aamir Saeed, Kamil, Nidal, Yusoff, Mohd Zuki, Badruddin , Nasreen
Format:	Conference or Workshop Item
Published:	2011
Subjects:	TK Electrical engineering. Electronics Nuclear engineering
Online Access:	http://www.epsmabec2011.org/abstract/88.asp http://eprints.utp.edu.my/7354/
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spelling	my.utp.eprints.73542014-04-01T14:29:32Z Effect of Caffeine Intake on Visual and Cognitive Functions Raja Khairuddin, Raja Nur Hamizah Malik, Aamir Saeed Kamil, Nidal Yusoff, Mohd Zuki Badruddin , Nasreen TK Electrical engineering. Electronics Nuclear engineering Introduction: In this paper, the effect of caffeine intake on the efficiency of the visual and cognitive processing measured through the assessment of the cognitive ERP components (i.e. P100 and P300), is studied and analyzed. This study is conducted through the measurement of amplitudes and latencies of P100 at Oz and P300 at Pz and Cz, respectively before and after caffeine intake. Method: Data is collected using 128 channel EEG machine from 8 subjects (4 males and 4 females) aged between 21 and 24 with normal vision and no known neurophysiological impairments. Subjects are assessed using oddball paradigm experiment. The subjects are asked not to take any caffeine related drink during day time from morning till 6 PM. The ERP signals are measured early morning and late afternoon at 5:30 PM before caffeine intake, using aforementioned arrangement. At 6 PM the subjects are stimulated with 60 mg of caffeine. The ERP signals are measured after 15 minutes of stimulation. Results: The results show a decrease in amplitude and increase in latency for P300 due to mental and physical fatigue over the day. Results for the amplitude variation over morning and afternoon measurements (before caffeine intake) for different subjects are shown in Figure 1. After caffeine stimulation, results show increase in amplitude and decrease in latency in general. Figure 2 shows the increase in amplitude of P300 at Cz for the different subjects. Conclusion: The experimental results show that caffeine improves cognitive performance by increasing alertness and attention and reducing fatigue. 2011-08 Conference or Workshop Item PeerReviewed http://www.epsmabec2011.org/abstract/88.asp Raja Khairuddin, Raja Nur Hamizah and Malik, Aamir Saeed and Kamil, Nidal and Yusoff, Mohd Zuki and Badruddin , Nasreen (2011) Effect of Caffeine Intake on Visual and Cognitive Functions. In: EPSM-ABEC Conference, August 14-18, 2011, Darwin, Northern Territory, Australia. (Submitted) http://eprints.utp.edu.my/7354/
institution	Universiti Teknologi Petronas
building	UTP Resource Centre
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Petronas
content_source	UTP Institutional Repository
url_provider	http://eprints.utp.edu.my/
topic	TK Electrical engineering. Electronics Nuclear engineering
spellingShingle	TK Electrical engineering. Electronics Nuclear engineering Raja Khairuddin, Raja Nur Hamizah Malik, Aamir Saeed Kamil, Nidal Yusoff, Mohd Zuki Badruddin , Nasreen Effect of Caffeine Intake on Visual and Cognitive Functions
description	Introduction: In this paper, the effect of caffeine intake on the efficiency of the visual and cognitive processing measured through the assessment of the cognitive ERP components (i.e. P100 and P300), is studied and analyzed. This study is conducted through the measurement of amplitudes and latencies of P100 at Oz and P300 at Pz and Cz, respectively before and after caffeine intake. Method: Data is collected using 128 channel EEG machine from 8 subjects (4 males and 4 females) aged between 21 and 24 with normal vision and no known neurophysiological impairments. Subjects are assessed using oddball paradigm experiment. The subjects are asked not to take any caffeine related drink during day time from morning till 6 PM. The ERP signals are measured early morning and late afternoon at 5:30 PM before caffeine intake, using aforementioned arrangement. At 6 PM the subjects are stimulated with 60 mg of caffeine. The ERP signals are measured after 15 minutes of stimulation. Results: The results show a decrease in amplitude and increase in latency for P300 due to mental and physical fatigue over the day. Results for the amplitude variation over morning and afternoon measurements (before caffeine intake) for different subjects are shown in Figure 1. After caffeine stimulation, results show increase in amplitude and decrease in latency in general. Figure 2 shows the increase in amplitude of P300 at Cz for the different subjects. Conclusion: The experimental results show that caffeine improves cognitive performance by increasing alertness and attention and reducing fatigue.
format	Conference or Workshop Item
author	Raja Khairuddin, Raja Nur Hamizah Malik, Aamir Saeed Kamil, Nidal Yusoff, Mohd Zuki Badruddin , Nasreen
author_facet	Raja Khairuddin, Raja Nur Hamizah Malik, Aamir Saeed Kamil, Nidal Yusoff, Mohd Zuki Badruddin , Nasreen
author_sort	Raja Khairuddin, Raja Nur Hamizah
title	Effect of Caffeine Intake on Visual and Cognitive Functions
title_short	Effect of Caffeine Intake on Visual and Cognitive Functions
title_full	Effect of Caffeine Intake on Visual and Cognitive Functions
title_fullStr	Effect of Caffeine Intake on Visual and Cognitive Functions
title_full_unstemmed	Effect of Caffeine Intake on Visual and Cognitive Functions
title_sort	effect of caffeine intake on visual and cognitive functions
publishDate	2011
url	http://www.epsmabec2011.org/abstract/88.asp http://eprints.utp.edu.my/7354/
_version_	1738655568955965440
score	13.211869

Effect of Caffeine Intake on Visual and Cognitive Functions

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