The Use of Iambic Pentameter in the

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Figure 25. Experimental and control sequences for Experiment 1 Time A Time C Time B Time D Note. (a) Experimental sequence for Experiment 1. Ambiguous experimental prime is followed by a global (common region) match target. (b) Experimental sequence for Experiment1. Ambiguous experimental prime is followed by a local (connectedness) match target. (c) Control sequence for Experiment 1. Neutral prime is followed by a global (common region) match target (d) Control sequence for Experiment 1. Neutral prime is followed by a local (connectedness) match target. Results and discussion Data from 21 participants were collected for the 50ms condition and from 19 participants for the 4000ms condition. In the 50ms prime duration, I omitted the data 78
from three participants because one participant did not accurately group over 10% of the unambiguous targets, one participant needed glasses in order to see the computer screen but did not bring glasses to the experiment and one participant reported having vision problem that had not been corrected by glasses or contacts. In the 4000ms prime duration, I omitted the data from one participant because she did not accurately group over 10% of the unambiguous targets. In the 50ms condition, participants ranged in age from 18 to 42 with a mean age of 22.4. In this condition, all of the participants were female. In the 4000ms condition, the participants ranged in age from 18 to 28 with a mean age of 21.6. In this condition, there were 15 female participants and 3 male participants. For both the 50ms and 4000ms prime durations, the mean reaction times to common region targets that followed experimental primes were subtracted from mean reaction times to common region targets that followed neutral primes. This score was considered to be the global (common region) facilitation score. Likewise, the mean reaction times to connectedness targets that followed experimental primes were subtracted from mean reaction times to connectedness targets that followed neutral primes. This score was considered to be the local (connectedness) facilitation score. Positive scores signified an advantage whereas negative scores signified a disadvantage. The global (common region) and local (connectedness) facilitation scores were compared. A mixed ANOVA (Size scale X Prime duration) was used to compare facilitation reaction times. Figure 26 depicts the results for Experiment 1. There was a main effect of size scale [global facilitation (M = 6.17 ms, SD = 16.56 ms), local facilitation (M = -4.33 ms, SD = 17.62 ms), F (1, 34) = 7.06, p = .012]. This result 79
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Time Course of Perceptual Grouping
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Experiment 1 76 Method 76 Results a
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List of Figures Figure 1. Illustrat
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will look like and how it will comm
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visibility of important interface e
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displays are reported. Global and l
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Electrical activity generated by th
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would not be. It would be easier to
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could be grouped by the principles
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Figure 4. Gestalt principles of gro
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One of the leaders in grouping and
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defined by similar numbers. For exa
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and Saasrinen (2000) observed that
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proximity (Bailey, 1989; Bonney & W
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find the target ‘Picture’ in th
Page 35 and 36: Humans integrate many types of info
Page 37 and 38: measures. As a result, the pilot wo
Page 39 and 40: Figure 10. Pop-up advertisement wit
Page 41 and 42: soldiers see in these speeded condi
Page 43 and 44: 2001), grouping by proximity and al
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Page 47 and 48: frequency channels at specific rang
Page 49 and 50: Recent support for the Flexible Usa
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Page 55 and 56: Gestalt principle of good continuat
Page 57 and 58: columns of circles on the opposing
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Page 61 and 62: Figure 15. Results for ambiguous pr
Page 63 and 64: As shown in Figure 16B, for the lig
Page 65 and 66: In review these findings, it become
Page 67 and 68: in user interface display layouts.
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Page 75 and 76: no longer perceived. These cases wi
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Page 81 and 82: Figure 23. Targets used in reported
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Page 91 and 92: The distribution of data from each
Page 93 and 94: Figure 28. Targets for Experiment 2
Page 95 and 96: Results and discussion Sixteen fema
Page 97 and 98: global grouping was significantly f
Page 99 and 100: Figure 32A depicts a box plot for g
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Page 105 and 106: Table 4. Characteristics of RT dist
Page 107 and 108: General Discussion Research that ha
Page 109 and 110: Experiments 2A and 2B were designed
Page 111 and 112: the size scale within an existing i
Page 113 and 114: “Hotmail” has been reported to
Page 115 and 116: They are interesting within the con
Page 117 and 118: forms of similarity could also be t
Page 119 and 120: the context of vision science resea
Page 121 and 122: Bennett, K. B., Nagy, A. L., and Fl
Page 123 and 124: De Valois, R. L. & De Valois, K. K.
Page 125 and 126: Johnston, W.A., Schwarting, I.S. &
Page 127 and 128: Nass, C., Isbister, K., & Lee, E.J.
Page 129 and 130: Palmer, S. E. & Rock, I. (1994). Re
Page 131 and 132: Sanocki, T.(2001). Interaction of s
Page 133 and 134: Tullis, T. S. (1981). An evaluation
Page 135: About the Author Melissa F. Schulz
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