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esponse F(1,17) = 1.95, Similar response New response Same response Similar response New response p = .18 Emo < Neu F(1,17) = 1.26, p = .28 Emo ! Neu F(1,17) = 0.02, p = .90 Emo ! Neu F(1,17) = 0.23, p = .64 Emo ! Neu F(1,17) = 0.14, p = .71 Emo ! Neu F(1,17) = 0.33, p = .57 F(1,17) = 0.08, p = .78 Neg ! Pos F(1,17) < 0.00, p = 1.00 Neg ! Pos F(1,17) = 0.05, p = .83 New items Neg ! Pos F(1,17) = 1.36, p = .26 Neg ! Pos F(1,17) = 3.77, p = .07 Neg ! Pos F(1,17) = 1.05, p = .32 F(1,17) = 1.80, p = .20 Emo > Neu F(1,17) = 8.70, p < .01 Emo < Neu F(1,17) = 11.96, p < .01 Emo ! Neu F(1,17) = 1.80, p = .20 Emo ! Neu F(1,17) = 0.53, p = .48 Emo ! Neu F(1,17) = 2.07, p = .17 F(1,17) = 1.67, p = .21 Neg ! Pos F(1,17) = 0.79, p = .39 Neg ! Pos F(1,17) = 0.03, p = .87 Neg ! Pos F(1,17) = 3.40, p = .08 Neg > Pos F(1,17) = 0.17, p = .68 Neg > Pos F(1,17) = 0.04, p = .85 329
Appendix 5.2. Analysis of Variance in Ratings of Encoding Task for Experiments 9 and 10 The variance in ratings for the encoding task for Experiments 9 and 10 was analysed by calculated the standard deviation in ratings given by each participant for scenes with a negative, neutral or positive object. This revealed a greater degree of variance in the ratings given in Experiment 9 where the scenes were blocked into those of the same emotion, compared to the ratings given in Experiment 10 when the scenes were presented in a pseudorandomised order (See Table 5.1.7). Participants were given a cue as to the emotion of the next scenes in each Experiment, although in Experiment 9 this was only indicated at the start of each block, whereas in Experiment 10 this was indicated before each item. Paired samples t-tests were used to statistically compare these values between Experiments. This revealed no statistically significant difference between the values for Experiment 9 and 10 (Negative: t(34) = 1.07, p = .29; Neutral: t(34) = 1.37, p = .18; Positive t(34) = 1.35, p = .19). Table 5.1.7. Average standard deviations for ratings of approach / avoidance in encoding task for Experiments 9 and 10 Experiment 9 Experiment 10 Negative 1.31 1.16 Neutral 1.12 0.95 Positive 1.23 1.05 330
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THE EMOTIONAL ENHANCEMENT OF MEMORY
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the memory effects. Surprisingly, t
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and motivation was waning. Most imp
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Meta-analysis: Experiments 6-10…
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negative, neutral or positive objec
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Figure 6.2. Summary of findings fro
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Table 3.5. Criteria for giving resp
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avoidance task ………………
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loved one could block their ability
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eport, physiological response and c
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Section 1.2. What effects do emotio
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due to external influences. In cont
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of naturally occurring emotions or
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ecause mood inductions generally re
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(e.g. Conway et al., 1994). Memory
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alternatives (Lockhart, 2000). The
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equired participants to distinguish
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een found when memory is assessed b
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peripheral elements of emotional an
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processing of the specific content
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failure to retrieve episodic memori
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effects on cognitive processes, eve
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ecollection and familiarity within
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emotional influence on memory. In t
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year (Dolcos et al., 2005). There a
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e suitable for investigating memory
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possible that having to distinguish
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of photographs of people, animals a
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Retrieval phase: Participants then
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y the ANOVA’s. These are only rep
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Table 2.1: Experiments 1 and 2: Res
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In these experiments the influence
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We found evidence of recognition me
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For the recognition test, which was
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Section 5. Experiments 2A and 2B: P
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items that had been seen previously
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Section 7. Experiment 2E: Recogniti
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Table 2.2. Experiment 2: Results of
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For the ‘know’ responses the ma
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Section 8. Experiment 2 - General D
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Presentation of stimuli in blocked
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It is possible that the act of maki
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enhancement can be influenced by re
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levels of memory between the positi
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the performance of any subsequent t
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experiment to provide a set of targ
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Experimental stimuli were presented
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Recognition performance in all thre
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Analysis of RKG responses We analys
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Further signal detection analysis o
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stimuli, which corresponded with mo
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could be generalised to the real-wo
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paradigm was first introduced by Tu
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The nature of recognition memory an
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The relation between Remember/Know/
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We proposed that a Remember respons
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to either the RKN or SSN memory tas
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change in a dimension (e.g., a ligh
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were prompted to indicate by key pr
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When you think the picture was not
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conducted to further analyse the ma
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interactions in the ANOVAs were fou
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Table 3.9. Same/Similar/New task: N
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Orthogonal contrasts revealed that
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Table 3.11. Remember/Know/New task:
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suitable responses were not equable
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We found that more ‘remember’ r
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say that context is easier to remem
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Levine & Bluck, 2004; Storbeck & Cl
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Figure 4.1. Examples of pairs of ne
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Familiarity i) Word frequency and w
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were not sure if there was going to
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Table 4.1. Experiment 5: Proportion
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memory for positive stimuli. These
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whether visual specificity for posi
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Figure 4.3. Examples of stimuli. St
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0.59 (-1.65 to 2.55; 0.98) respecti
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Section 3.3. Results The data for t
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Figure 4.4. Mean average specific a
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The possibility of a response bias
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Section 4. Experiment 7: Biases in
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of an attentional encoding explanat
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esults will be found as for Experim
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of one second was displayed before
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Table 4.3. Mean responses (SE) for
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greater recognition for the objects
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Table 4.4. Mean average (SE) number
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eveal a significantly longer total
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difference between scenes with a ne
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of memory for positive objects was
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independent of attention, which is
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lack of a central-peripheral trade-
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to a detriment in memory for periph
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Alternative measures of memory: Ass
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associative binding (Touryan et al,
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greatly diminish or disappear with
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Factors unrelated to intrinsic emot
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faces or places (Puri & Wojciulik,
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We predict that the pattern of memo
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ackground they had seen in the stud
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component (F(2,34) = 5.45, MSe = 0.
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Associative Memory In the associati
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The number of fixations made were a
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longer total gaze duration on the e
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.54], nor on backgrounds of scenes
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the background when presented later
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Section 3.1. Introduction Section 3
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were then shown, preceded by a 20 s
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2.56, p < .001, partial eta 2 = .71
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(negative, neutral, positive) and s
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object in a scene. There was no sig
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eradication of any emotional enhanc
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possible that the emotional stimuli
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central-peripheral trade off in the
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Section 3.3. Results Results of the
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Planned contrasts revealed the impa
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component (object, background) inte
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ackground of the scene. There was n
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Section 3.4. Discussion There was e
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identify with eye movement recordin
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Table 5.7. Average ratings (standar
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emotional influence on the results
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Figure 5.7. Specific and general re
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ecognition of positive and negative
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Figure 5.9. Specific and General Re
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Section 5.3. Eye movement results T
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.01). Post-hoc Tukey’s HSD were u
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The number of fixations made on dif
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(F(1.79,5.37) = 7.12, MSe = 232535.
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emotional and neutral object [F(1,6
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Figure 5.16. Experiments 7 - 10: Av
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may be that the scenes were easier
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Chapter 6. Discussion In the final
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In chapter 4 I extended the experim
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Figure 6.3 Summary of findings from
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alternative measures of attention h
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distribution of visual attention re
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designing and conducting experiment
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contributed to the difficulty in cr
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whether these perceptual difference
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Richardson-Klavehn, 2005) with the
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Page 286 and 287: participant and the artificial prod
Page 288 and 289: References Adolphs, R. (2002). Reco
Page 290 and 291: Buchanan, T. W. (2007). Retrieval o
Page 292 and 293: Davidson, R. J. (1994). On emotion,
Page 294 and 295: Gardiner, J. M., Ramponi, C., & Ric
Page 296 and 297: James, W. (1884). What is an emotio
Page 298 and 299: Levine, L. J., & Bluck, S. (2004).
Page 300 and 301: components. Journal of Experimental
Page 302 and 303: Rowe, G., Hirsh, J. B., & Anderson,
Page 304 and 305: Talmi, D., Schimmack, U., Paterson,
Page 306 and 307: Zajonc, R. B. (1968). Attitudinal e
Page 308 and 309: Appendix 2.2. ANOVA Analyses for Ex
Page 310 and 311: Table 2.2.4. Experiment 1: Separate
Page 312 and 313: Appendix 3.2. Contamination of Retr
Page 314 and 315: Appendix 4.1 Analysis of Same, Simi
Page 316 and 317: Scene component* emotion* response
Page 318 and 319: Section 4.1.2 Analysis for Experime
Page 320 and 321: Emotion* Response type F(4,68) = 0.
Page 322 and 323: esponse F(1,17) = 0.25, New respons
Page 324 and 325: Scene component* Response type Tuke
Page 326 and 327: Same response Similar response New
Page 328 and 329: Effect ANOVA result Response type F
Page 330 and 331: Similar response New response Same
Page 332 and 333: Tukey’s post hocs: For objects Sa
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