Lexical Decision Lab
Taylor Burkholder, Tiffany Burton, Nabeela Rahman
University of Kentucky
Abstract
Numerous research studies have been conducted in the past investigating the idea of how different stimuli are associated with each other in the brain. In specific, research has been conducted showing a relationship between priming techniques and their association on response times. Today, one question being asked is how is the idea of the mental lexicon involved with recognition of stimuli. The mental lexicon is used as a way of storing information that is associated with each other. The study we conducted aimed to further investigate the idea of a mental lexicon or the organization of words based on how they relate
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The distribution of the participants by gender included 26 females and 6 males. The age of the participants ranged from 19 to 41 years old (M= 20.725, SD=5.15). All subjects are students who attend the University of Kentucky and are enrolled in PSY 427 Cognitive Psychology class instructed by Dr. Gottlob.
Apparatus and Materials Subjects participated in this experiment via an online Cognition Lab website, CogLab powered by Cengage Learning. Each student created a CogLab account at the start of the semester and participated in the lexical decision task on the Coglab website. Independently, the participants accessed and completed the experiment using a laptop, tablet or desktop computer. Each participant was given instructions on how to complete the experiment as well as a debriefing form following the completion of the study.
Procedure
Participants were given background information on lexical decision tasks and the mental lexicon then given instructions on how to complete the tasks. The study involved 96 trials. Each participant was given the same instructions. The participant was first shown a black rectangle, which served as the visual field for decision making. Then each participant was shown a white cross in the middle of the black rectangle, which served as a fixation point for one second then disappeared. Following the fixation point, either a valid English word or a non-word would
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A one way between subjects ANOVA statistic test in SPSS was done to determine if there was a between subject effects. The main effect of the type of association between words was significant (F(2,56) = 24.37, p= < .0001). Then, a Tukey HSD test was used to determine which groups in the sample differ and where the significance exists. The post hoc comparisons using the Tukey HSD Test indicated that the mean score for associated words (M=730.078, SD= 184.6699) was significantly different than non words (M= 878.267, SD= 233.7971) with p=<.01. The mean scores for associated words (M= 730.078, SD= 184.6699) were not significantly different than unassociated words (M=702.4224, SD= 176.0441). However, the mean scores for non-words (M= 878.267, SD= 233.7971) were significantly different than unassociated words (M=702.4224, SD= 176.0441). This study failed to reject the null hypothesis of association having no effect on response
Study examined the Stroop effect in words which are not colours, but represent related object connected to certain colours and whether that would yield similar or the same effect as the classic Stroop study. Previous studies such as Stroop's (1935) found out a clash between controlled and automatic processing, which resulted in delayed answering. This experiment was conducted for 20 participants of both sexes and various age categories. They were given two lists consisting each of 30 coloured words. One half of these words were colour-neutral and other colour-relevant. As was expected, the colour-neutral were processed much faster. It is therefore
The Stroop effect is demonstrated by the reaction time to determine a color when the color is printed in a different color’s name. Participants respond slower or make more errors when the meaning of the word is incongruent with the color of the word. Despite knowing the meaning of the word, participants showed incapability of ignoring the stimulus attribute. This reflects a clear instance of semantic interference and an unfathomed failure of selective attention (Stroop, 1935).
A recognition test was used by researchers interested in the matter, Roediger and McDermott (1995). The purpose of their research was to examine false recognition of non presented words and the confidence with which the participants accept or reject the non presented words as having been in the study lists. The participants were instructed that they will hear lists of words, and their task after hearing each list is to write the last few items first and to recall the rest of the words in order. Also, they are told to write all the words they can remember, but without
Using paired wordlists of nouns, Bower and Gordon demonstrated this in their 1970 experiment. In their study, they had undergraduate students learn paired wordlists by one of four methods – rehearsal of the two words; reading a sentence in which one of the words acted upon the other (i.e. “The boy hit the ball.”); creating a sentence which linked the two words (i.e. “Nancy threw her bag on the table.”) or creating a mental image of the two words together (i.e. imagining a basket of flowers) (Bower & Gordon, 1970). Results found that students who employed imagery did better on recalling the word pairs in comparison to other methods and those who utilized rehearsal had the lowest recall rate out of the four groups (Bower & Gordon, 1970).
Wittenbrink, Judd, and Park (1997) studied eighty-eight people from the University of Colorado, who were in a psychology course, in order to receive points for their class. African Americans were not included. Caucasian American participants had to do three irrelevant assignments. One involved classifying to which race people belonged to according to first names. In this way, a connection with race categories was reinforced and was used as group primes. Following this, they had them do a response time assignment (out of awareness procedure), where they were asked if different strings of letters on the computer were a word or were not a word this was part of the Lexical Decision Task (LDT) (Wittenbrink, Judd, and Park, 1997). Before presenting the words
15. The purpose of this study is to assess the effects of speed on the recall of abstract and concrete words. The hypothesis of this research is that words heard at normal speed will be easier recalled then those heard at a fast speed.
The aim of this experiment was to test how the automatic processing of reading interferes with the controlled processing of naming a colour. The findings support the original previous research (Stroop, 1935) as a significant difference was found which indicates that when the controlled process of naming a colour is not interfered with then it can be recognized faster whereas when the automatic processes of reading words is involved then the time taken to name the colour is slower due to the interference.
This study is a conceptualized replication of the Howes and Solomon (1951) experiment investigating word accuracy and word frequency in short duration trials. It is hypothesized that words that appear more often in printed text (easier to access in the lexicon) will be more accurately identified rather than words that appear less commonly. A total of 83 participants in the study were presented with words taken from the Throndike-Lorge database. The words were presented for one second with a six second rest in the middle. This was done sixty times and the results suggest a moderate strong relationship between word accuracy and frequency. Though there are multiple factors that may have influenced these results.
In each trial, the participants were presented with a sequence of words on the left side of the window. Each word was presented for one and a half seconds. After all the words were presented, the response buttons were presented on the right side of window. These response buttons were labeled with words from the sequence along with new distractor words that were not part of the sequence. The goal of the participants was to click on the response buttons and identify all the words that were part of the sequence. The independent variable for this study was the types of words that were presented on the test (response buttons). The dependent variable was the percentage of each types of items reported.
We are replicating J.R. Stroop’s original experiment The Stroop Effect (Stroop, 1935). The aim of the study was to understand how automatic processing interferes with attempts to attend to sensory information. The independent variable of our experiment was the three conditions, the congruent words, the incongruent words, and the colored squares, and the dependent variable was the time that it took participants to state the ink color of the list of words in each condition. We used repeated measures for the experiment in order to avoid influence of extraneous variables. The participants were 16-17 years of age from Garland High School. The participants will be timed on how long it takes them to say the color of the squares and the color of the words. The research was conducted in the Math Studies class. The participants were aged 16-17 and were students at Garland High School. The results showed that participants took the most time with the incongruent words.
Everyday we read, talk, breathe and blink. These actions we engage in are automatic because they happen without us thinking about them. Understanding the underlying mechanisms behind our thinking, we can conclude how these processes are affected and manipulated. In the classic Stroop Paradigm (Stroop, 1935), participants were asked to respond to the Color ink and ignore the spelling of the word being displayed. The results conveyed that those in the group that had the same word and color responded faster and then those who had a different color and word. Stroop findings demonstrate the main component of the interference came from reading automatically.
The aim of this study was to demonstrate that with Semantic Association training, participants would rank more word pairs correctly than participants who did not receive any training. There were five hypotheses in this study. Firstly, it was predicted that the group who received Semantic Association training (experimental group), would receive a higher, total score in the Ranking Pairs task, than the control group who did not receive any training. This result was significant and did demonstrate that training did improve the way people associated word pairs.
Klein’s (1964) implicated that the interfering effect became increasingly larger when words were more meaningful and closely colour-related, showing a highly significant difference among conditions (p<0.001). Result of the time increment between the six experimental conditions and the Colour-naming task followed the same pattern as Klein’s (1964): interference was the least for letter strings (nonsense syllables), and increased progressively to low-frequency (rare) neutral words, high-frequency neutral words, high-frequency (common) colour-related words, and other-colour (distant colour-names) words, and greatest interference was found in the classic Stroop (close colour-names) condition. The pattern supported the second hypothesis, that the Stroop effect would be small or lessened for colour-unrelated words such as letter strings (nonsense syllables). Klein (1964) demonstrated that the trend of the time increment among the experimental conditions could be interpreted by our semantic networks. As the processing time was longer for meanings (semantics) of the words than nonsense and phonemics, a reading delay was subsequently created by the effort to restrain one of the conflicting responses. Although the results of the experiment replicated with Klein’s (1964), the time increment among the six experimental conditions were generally smaller than his, which could be possibly explained by the different sample sizes. Compared to the 90 participants in Klein’s experiment, the small sample size of 32 participants in this experiment might generate less varied results due to fewer individual
The participants were told to pay close attention to words because they would be asked to recall the words. Apart from this in order to make sure that the participants were paying attention to the words they were told to rate each words as either “concrete” or “abstract". The dependent variable in the study was the amount of words that were recalled as-well as the reaction time of how long they took to rate the words.
Mentally he knew the names that were on each of the pictures but could not actually get the word out. He was then asked to try and indicate a phonological feature of the word, or another word that was similar to the target word, but he was unable to provide any information phonologically that was associated to the target word. The experiment preformed on” Dante in this article supports the two-stage model of lexical production regarding the lexical retrieval failure of words (Badecker at. El).