Experimenting with a variant of the stroop effect

The goal of the experimental job was to study a variant of the Stroop impact. How cognitive process are influenced when automatic processing happen.

The hypothesis offered was, a big change in information processing times would be needed over the two conditions when the Stroop impact was used. The null hypothesis claims that their will not be any relevance during information control by members when the two conditions are believed with regards to the Stroop effect.

The research was completed using twenty members attracted from two options; sixteen from Open up University colleagues, relatives and buddies group; four from an area relatives and buddies group. They were subjected to the Stroop effect test. Statistical analysis was extracted using SPSS version eighteen software. When individuals browse the ink colorings with natural words they needed less time than when asked to learn the colour of coloring words.


Every instant of life from starting too passing away we obtain information from the surroundings, allowing us respond and adapt appropriately to improve. Darwin C, pg. 71 (1859) most species are destroyed by competitors. Lamarack (1829) life is because time and environmental communication.

The interaction between environment and organism is highly recommended a two way process, we go through the environment responding properly. Heider (1958) presents this as cause and result we struggle to make sense of our own environments. What is it which allows us function in contemporary society, construct and develop knowledge, invent and develop our intellectual functions. Community Psychologist Sternberg (2004) views this learning and knowledge as cognitive processes.

Attention is a cognitive process and affects what is sensed and perceived. Many activities such as walking, chatting, cycling, typing, travelling become automatic. So when you yourself have learned how to operate a vehicle a car you store the event sequence, change products, steer and use brakes. The driving a vehicle process becomes automated without the need for conscious consciousness. Mc Daniel et al (2000) consider automated attention leads to higher efficiency in handling information.

Psychologists discuss experience and perception as part of the learning process. Experience is reported to be the same for everybody, most people see oranges as yellow-red yet their understanding of the flavor will commonly vary. Some may consider the super fruit as damp and sugary; others dried and bitter. So that it is impossible too conclude, that feeling will always lead too similar perceptions.

Our mindful and unconscious view of the world is changed by sociable and environmental fitness. William Adam (1890) considers the mind gives focus on one stimulus and allocates our limited processing resources. This selective process causes other stimuli not being refined. Kahneman (1973) suggests that the mind has a limited-capacity central processor chip leading to mistakes in how earlier knowledge and current encounters are included. Simons and Levin (1998) experiment change blindness provides an example of how we take in limited information in our daily lives. Richard Gregorys theory also shows that we build our perceptions of the world using incomplete information.

When you want to learn something new; we can have problems in processing the information. When two bits of information are present the brain automatically steps. However this becomes difficult separating the associated information; this is consistent with Kahneman (1973) view of limited capacity processor chip. Stroop (1935) the Stroop result is an example of a connection between repeated and managed processes. Individuals look a words, example sky printed in red ink they say aloud the ink color, not the term. Stroop (1935) noticed this caused individuals to stop resulting in hesitation, the colour and expression interfered with each other. Reading is an computerized process taking less processing time, while reading of ink colors cause interference so that it takes longer.

In this research project I will take a look at a variation of the Stroop result: people think it is harder to name what colour ink a expression is written in if the word is the name of the color than if the term is colour neutral. The hypothesis is that there ought to be a significant difference in times taken up to process information during the two conditions. The null hypothesis is the fact there shouldn't be any important difference in enough time taken by individuals when the both conditions are reviewed.



This was a within-participant design both conditions were analyzed using the same twenty individuals. The 3rd party variable was an individual task. The task needed that the participants read out loud the colour of each word; not the words. The dependent variable was the time taken to complete this visual task. Measurements were timed utilizing a stop watch; this was registered to the nearest second. To control for any difficulties with shade blindness the four participants decided on locally were presented with a color test sheet (Appendix 2). They were necessary to identify six colorings correctly. To prevent participants becoming familiar with the list of words; these were given two different lists; the color sequence continued to be the same. To regulate for confounding factors participants received the test at the same day and time. Instructions given to individuals were those provided by the Start University, ensuring no distress or variant in the experiment.


The twenty participants in this experiment came from two options; sixteen members were recruited by the Open University as partners of this experiment. They were co-workers, members of the family or friends. The second source; four individuals were recruited by me from an example of fifteen relatives and buddies. The four who participated were arbitrarily selected. Age participants ranged from 18 to 75 years and there have been 13 women and 7 men.


An electronic stopwatch accurate to one tenth of a second was used to record times considered by each one of the four participant selected by me. The sixteen members chosen by the partnering organization (OU) have been timed to the nearest second. So I standardised timing to the nearest second when members completed the aesthetic task. The visible stimuli for condition one and two were presented on two distinct bed linens of white newspaper. Each sheet of paper contains 30 words; in two columns. There were six words repeated five times; each word printed was in several one of six colors; the print used was Arial 36 items. In condition one the six words used were nouns each thing have colours attributable to the thing, Sky blue, Plum purple, Lemon yellow, Lawn green, Carrot orange and Blood vessels red. In condition two the words had no shades attributable. The word order was randomised, the same in each condition. Types of the condition bed sheets are given in Appendix. Standard instructions were used (Appendix 6) each of the members completed a consent form (Appendix 5)


A duel sampling set up operated in regards to to participants of this research. The first sixteen individuals were selected by the Start University the members were picked from colleagues relatives and buddies. The second band of four individuals were selected randomly from a group of fourteen relatives and buddies. Each participant was asked if indeed they would be a part of a five to 10 minutes cognitive psychology experiment. Those who decided to participate agreed upon the consent form. The four members were tested individually of each other. Backdrop information such as age and gender were recorded. I be sure the band of four were nave with regard to this experiment. That they had no experience with regard to psychology. Instructions for condition one and two were read; they were told they might be offered two bed sheets of A4 newspaper made up of columns with words. They were to say out loud the colour ink each word was paper in; not the word. Individuals were asked to complete column one and then continue too column two.

Then they would be offered a second list of words and necessary to follow the same instructions. Before the test each participant was given a sample term and colour. They were told that they would be timed during the experiment. The list of words were put face down before them. The A4 sheet of paper was then flipped over and the duty began; the stop watch was started out when the participant commenced reading. Enough time used for condition one was noted. The same method was adopted for the second condition. Within the debriefing program the participant was educated regarding the aims of this experiment and was presented with an chance to ask questions.


The research hypothesis in this experiment suggests that the difference will be significant in conditions of time considered when completing duties. The time taken by participants reading word colorings were measured and round to the nearest second.

Table 1 Mean and standard deviation for response amount of time in seconds

Condition Mean response time (in seconds) Std. Deviation

Condition 1 24. 60 4. 581

Condition 2 22. 65 4. 030

Table 1, implies that the mean response time in seconds for the condition one and two are significantly different, with the mean time used condition two being 1. 95 seconds shorter than condition one. An independent sample t-test completed on the info, exposed the difference between your two conditions was statistically significant (t (19) = 2. 890; p =. 009; d =. 0045). Based on these result the null hypothesis should be turned down.


The hypothesis advised the time necessary to complete the duty would show a big change during information control. It could take longer to process information in condition one and less in condition two. Schneider and Shiffrin (1977) two process theory connected controlled and automated information processing, suggesting the ex - requires more processing tool than the latter. In this experiment reading words can be an automatic process; determining word colors is a manipulated process. Response times in condition one was significantly different from condition two. Condition one individuals might have been sidetracked by the underling significance of their characteristic colors. What in condition two could have no word colour association. The neutral coloured words are in another way processed by the brain than the coloured words consistent with interference theory.

Stroop (1935) and Lavie (1995) experienced similar results. Stroop found automatic process (reading) effect on controlled processes (naming ink shades). These computerized process present with drawbacks; they can not be stopped, preventing manipulated processes going on. Lavie (1995) shown how information handling is obstructed when there exists to great a perceptual load. Engel (1971) attentional tunnelling, only allows smaller amounts of information be prepared. The evolutionary point of view implies this is significant; when an urgent attack or event requires an instant response. McLeod (1977) helps a multi-processor model of attention, that we can process aesthetic and auditory inputs through lots of programs. McLeod results mentioned reaction times weren't slowed when following a number of jobs in the experiment. If our processing ability is restricted; because of scarce cognitive capacity; it is realistic to suggest members will not succeed during a dual job test. In this experiment participants started out reading the list slowly but surely; their reaction to the colored stimuli improved. It appears what had been a manipulated response was now becoming automated.

The limited quantity of words and individuals selected may have affected the research outcome. Most likely the task of reading twenty words on two lists was inadequate to demonstrate interference. The task of reading the color inks allowed individuals take as enough time as they required; therefore they may not have been under any pressure with such a restricted sample.

In realization the experiment gives support to the Stroop effect; automatic processes are casually too require significantly less control resources than required by manipulated processes

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