94
Table 1. The mean hit and false alarm rates, along with the d' and c values, for Experiments 1 and 2. Only
hit rates were measured in the two-alternative forced-choice task of Experiment 3. Standard deviations
are in parentheses.________________________________________`______________'__________________________
|
Experiment 1 |
Hits |
False Alarms |
£ |
Ç |
|
SoundPresent |
.62(.24) |
.03 (.09) |
2.81 (1.13) |
.99 (.56) |
|
Sound Absent |
.57(.24) |
.03 (.06) |
2.40(.90) |
.97(.53) |
|
Experiment 2 | ||||
|
Touch Left-Sound Left |
.51(.21) |
.02 (.04)a |
2.38(.95) |
1.18 (.30) |
|
Touch Left-Sound Right |
.47 (.18) |
.04(.07)b |
2.04 (.94) |
1.11(.40) |
|
TouchLeft-NoSound |
.46 (.19) |
.02 (.05)c |
2.29(.92) |
1.26(.32) |
|
Touch Right-Sound Left |
.38 (.18) |
.03(.06)a |
1.93 (.78) |
1.28 (.42) |
|
Touch Right-Sound Right |
.42(.15) |
.03(.04)b |
1.99 (.68) |
1.20 (.34) |
|
TouchRight-NoSound |
.37 (.17) |
.03(.05)c |
1.87(.90) |
1.33 (.35) |
|
NoTouch-SoundLeft |
' - |
.05(.06) .04 (.05)d |
' - . |
- ∙ l ■ ∙ |
|
NoTouch-Sound Right |
- |
.03 (.03) .07 (.10)d |
. - |
- . ∙ |
|
NoTouch-NoSound |
- |
.03 (.04) .03 (.05)d |
■ - . | |
|
Experiment 3 | ||||
|
IOO Hz Touch-IOO Hz Sound |
.78 (.21) |
- |
■ - . | |
|
100 Hz Touch-200 Hz Sound |
.49(.30) |
- |
' - . ∙ |
■ - |
|
IOO Hz Touch-No Sound |
.57(.31) |
- |
- | |
|
200 Hz Touch-IOO HzSound |
.37(.17) |
. ■ - . |
. - . ' |
■■ - |
|
200 Hz Touch-200 Hz Sound |
.71(19) |
- |
- . |
- ■ |
|
200 HzTouch-NoSound |
.67(.33) |
- |
-∙ |
∙. - . , |
a This false alarm rate reflects the mean proportion of trials that participants incorrectly
reported feeling a sensation on the hand opposite the sound and touch
bThis false alarm rate reflects the mean proportion of trials that participants incorrectly
reported feeling a sensation on the hand opposite the touch, but on the same side as the
sound
c This false alarm rate reflects the mean proportion of trials that participants incorrectly
reported feeling a sensation on the hand opposite the touch
d The left false alarm rate reflect the mean proportion of trials that participants incorrectly
reported feeling a sensation on the left hand whereas the right false alarm rate reflects the
mean proportion of trials that participants incorrectly reported feeling a sensation on the
righthand