A review of the article, Caffeine Improves Left Hemisphere Processing of Positive Words written by Lars Kuchinke and Vanessa Lux (2012) hypothesized the “link between the left hemisphere (LH) will have a positive advantage in emotional word recognition” (p. 2). The increased dopamine in the brain and caffeine administered is anticipated to increase word recognition by enhancing the process of positive words by the effects of caffeine. This study help others’ understand how the left hemisphere processes and recognizes things. “For more than 95% of right-handed people, the left hemisphere is strongly dominant for speech” (McKeever et al., 1995; as cited in Kalat, 2013, p. 430). “People that are left-handed have left-hemisphere dominance for
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2). “Caffeine in small doses blocks the inhibitory adenosine receptors in the brain which increases behavior in the nervous system by multiplying interactions with dopamine receptors in dopamine-rich brain regions” (Fredholm, Battig, Nehlig, & Zvartau, 1999; Garrett & Griffiths, 1997; Childs, Hohoff, Deckert, Xu K, Badner, et al., 2008; as cited in Kuchinke & Lux, …show more content…
The researchers used the Berlin Affective Word List (BAWL, Kuchinke, Urton, & Hofmann, et al., 2009 as cited in Kuchinke & Lux, 2012)) “to select emotional words for the 3 emotions by 2 lexicality design which was used in analogy to the signal-detection approach” (Windmann, Daum, & Gunturkun, 2002; as cited by Kuchinke & Lux, 2012) in which researchers “built pseudowords by interchanging vowels in the emotional words to create pseudohomophes for the current experiment” (Kuchinke & Lux, 2012, p. 2). Windmann, Daum, & Gunturkun (2002) “used a lexical decision task (LDT) to measure how quickly participants classify stimuli as words or nonwords (Abstract). In the current experiment, Kuchinke & Lux (2012) used “six stimulus list of 50 stimuli (words) each were used, three list contained emotional words (positive, neutral, or negative) and three list consisted of emotional pseudowords known as non-words in current experiment (positive, neutral, or negative,” p.
2). “Caffeine in small doses blocks the inhibitory adenosine receptors in the brain which increases behavior in the nervous system by multiplying interactions with dopamine receptors in dopamine-rich brain regions” (Fredholm, Battig, Nehlig, & Zvartau, 1999; Garrett & Griffiths, 1997; Childs, Hohoff, Deckert, Xu K, Badner, et al., 2008; as cited in Kuchinke & Lux, …show more content…
The researchers used the Berlin Affective Word List (BAWL, Kuchinke, Urton, & Hofmann, et al., 2009 as cited in Kuchinke & Lux, 2012)) “to select emotional words for the 3 emotions by 2 lexicality design which was used in analogy to the signal-detection approach” (Windmann, Daum, & Gunturkun, 2002; as cited by Kuchinke & Lux, 2012) in which researchers “built pseudowords by interchanging vowels in the emotional words to create pseudohomophes for the current experiment” (Kuchinke & Lux, 2012, p. 2). Windmann, Daum, & Gunturkun (2002) “used a lexical decision task (LDT) to measure how quickly participants classify stimuli as words or nonwords (Abstract). In the current experiment, Kuchinke & Lux (2012) used “six stimulus list of 50 stimuli (words) each were used, three list contained emotional words (positive, neutral, or negative) and three list consisted of emotional pseudowords known as non-words in current experiment (positive, neutral, or negative,” p.