LEXICAL DECISION TASK

Lexical Decision Task

Abstract

In this study we are going to talk about "lexical decision task” in a holistic context. The main focus of this research is on “lexical decision task” and it's relation with “words and non words”. The research will also analyze different aspects of topic. And try to gauge its overall effect on the “words and non words”. For lexical decisions, the probability that a word target is semantically related to its prime (the relatedness proportion) has been confounded with the probability that a target is a nonword, given that it is unrelated to its prime (the non word ratio). The study discusses that semantic priming for high-dominance exemplars was modulated by the relatedness proportion and, to a lesser degree, by the nonword ratio. These results suggest that lexical decision is affected by word and non word ratio and shows a wide difference in the study.

Lexical Decision Task

Introduction

Semantic memory is the type of memory of meanings, understandings, and other concept-based knowledge unrelated to specific experiences. This structure has undergone many studies to test exactly how it functions using a variety of developed tasks. One particular interesting function is how this structure determines words and non-words. One task developed by David E. Meyer and Roger W. Schvaneveldt has been brought to the forefront in the 1970s called the Lexical Decision Task. This procedure in its simplest form is presented to participants with a mixture of words and non-words; the participants with a click of a button will determine what are 'words' and 'non-words'. The analysis of the task is based on the frequency and errors of the subjects' responses. The Lexical Decision Task (LDT) is one of the simplest and most widely used reaction time procedures in psychology today (Bueno, 2008).

Literature review

Lexical decision tasks and their association with word punctuation represent the representation of the word. Coane, (2010) have reviewed the literature regarding the relationship between related and unrelated words and their association with semantic memory. They reported a number of studies indicating that there are several properties in words which help in word recognition. Thus, (Meyer, 1971) mentions that it is clear here that lexical decision contributes to lexical decision which is clear from the data. It is a fact that memory recognizes certain words which we have used before. We all have intuitive knowledge in our long term memory which helps in recognizing that word. Similarly, the related and unrelated words also help us in recognizing the words and their association.

Hypothesis

If semantic priming is present, reaction time for related words should be less than the reaction time of unrelated words.

Method

Participants

Participants were twenty-nine undergraduate students attending Georgia Southern University. At the time of the experiment, the participants were enrolled in psychological Research Methods courses. They were compensated with course credit for their participation.

Materials

CogLab experimental software (Wadsworth, 2007) was utilized to test and record all of the results. Two keys were designated for dominant hand preference, right-handers were opted letter K indicating a word and letter L ...