Chapter 4 Signal Detection Theory (SDT) • Measure sensitivity to a target’s presence Signal Decision Present Present Hit Absent Miss Absent False Alarm Correct Rejection Cognitive Psychology‚ Sixth Edition‚ Robert J. Sternberg Chapter 4 cogLab: Signal Detection Cognitive Psychology‚ Sixth Edition‚ Robert J. Sternberg Chapter 4 Vigilance and SDT • Vigilance is attending to stimuli over time to detect a target • Vigilance decreases rapidly over time (fatigue) – misses and false alarms
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pair either the pictures appeared instantly after each other or they flickered. The participants in this study consist of a psychology class in the College of Staten Island. In order to start this experiment‚ students were asked to sign in to their CogLab accounts. To start the first trial of the change detection experiment‚ participants were required to press the space bar. One picture will appear after the other. The task in this experiment is to detect whether or not there is a change in the two
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The relative importance of speech to the irrelevant speech effect. Journal of Experimental Psychology: Learning‚ Memory‚ and Cognition‚ 23(2)‚ 472-483. doi:10.1037/0278-7393.23.2.472 Neath‚ Ian‚ Greg Francis‚ and Daniel R. VanHorn. "Visual Search." CogLab on a CD‚ 2.0. Australia: Thomson Wadsworth‚ 2008. Tremblay‚ S.‚ Nicholls‚ A. P.‚ Alford‚ D.‚ & Jones‚ D. M. (2000). The irrelevant sound effect: Does speech play a special role? Journal of Experimental Psychology: Learning‚ Memory‚ and Cognition
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probability of discriminating and reporting the second target with respect to the first. In addition‚ the experiment was conducted inside the ergonomics laboratory at the Science and Technology research building on February 5‚ 2013 using the Wadsworth Coglab program application. It was done at only one site to ensure the consistency of the environment. Also‚ each test consisted of 100 trials. I. PROBLEM STATEMENT Attentional blink is present between targets of short separation. II. OBJECTIVES
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References: Francis‚ G.‚ Neath‚ I.‚ & VanHorn‚ D. (2008). CogLab 2.0 on a CD. Belmont‚ CA: Thomson. Cooper‚ L. A. (1975). Mental rotation of random two-dimensional shapes. Cognitive Psychology‚ 7‚ 20-43. Shepard‚ S.‚ & Metzler‚ D. (1988). Mental rotation: effect of dimensionality of objects and type of task. Journal
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Memory Test Outcomes: Differences? Naïve and Non-Naive participants using Levels of Processing Test Abstract 90words Introductions 450 Many researchers have tried to unravel the mystery of memory in the brain. Early popular theorist Atkinson and Shiffrin (1968) proposed that memories are kept in the brain in “stores” or rather locations where the information is held. They suggest that new information detected from the environment enters to the sensory memory. If attention is paid
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Distinctiveness between the right and left hemisphere of the brain Word Count: 995 Abstract The brain assymetry experiment is to investigate on the distinctiveness of the right and left hemisphere in the brain as each hemisphere has certain specializations. The experiment were carried out by initially asking the 25 participant on whether they were left or right handed and they had to choose the chimeric image which appeared younger to them. Laterality quotients were calculated in order to
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The Stroop effect is a phenomenon wherein individuals take longer to name the color of words printed in a non-matching color‚ such as the word blue printed in red ink‚ than when the words are printed in the same color as the word designates‚ such as the word blue printed in blue ink.; J. R. Stroop first described this in 1935 (Goldstein‚ 2011). Stroop found that this effect occurs when the names of the words cause a competing response‚ which then leads to a slower response to the target (Goldstein
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The Forgotten Middle Child of Memory: The Serial Position Effect In our lives‚ there are many situations in which we are required to remember lists of items. We are presented with situations as simple as remembering what we were supposed to buy at the grocery store to more complicated situations of having to memorize lists of vocabulary words in school in our everyday lives. Thus it is important to know and understand how we remember such things so we can effectively recall them when
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Introduction The cognitive difference between people who regularly abuse alcohol and those who drink socially has been explored using a range of investigatory paradigms. One of the approaches used was the emotional Stroop paradigm (Williams et al.‚ 1996). When the word meaning and ink color are different the color naming is found to be slower than when the semantic content of a word is neutral. This slowing is known as the Stroop effect‚ from which it is concluded that an attentional bias has developed
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