VR slides 22

Question 1

audio motion is similar to what

Answer 1

visual motion paralax - additional info provided through multiple views of sound source

Question 2

auditory motion parallax simulated with what two movements

Answer 2

passive and active

Question 3

better detecting auditory motion during what type of movement

Answer 3

active

Question 4

3 necessary items to auditory renderr

Answer 4

signal processing, auditory modeling, auralization

Question 5

signal processing (domain)

Answer 5

time versus frequency domain- depend on fourier transform

Question 6

what does the smapling rate need to be

Answer 6

twice the highest frequency trying to achieve

Question 7

auditory modeling is similar to vision but less what is requried

Answer 7

spatial resolution

Question 8

auditory rendering (3 steps)

Answer 8

head movement - auditory virtual world generator - auralization (must all be fast)

Question 9

why are experiments on human subjecs necessary

Answer 9

to prove a novel method, technology or practice is benefeicial

Question 10

what types of research fall under testing human subjects

Answer 10

experimental psych, human factors research, human computer interaction

Question 11

scientific method

Answer 11

observation, ask a question, hypothesis, develop testable prediction, gather data, refine or alter or reject hypothesis, dvelop theory, make observation

Question 12

experiemntal process from start to finish (7 steps)

Answer 12

motivation, hypothesis, dsign, collection, analysis, interpretation, presentation

Question 13

human vr loop

Answer 13

vr (replaces environment) > displays > sensed by sensory signals from environment and hit senses in organism > perception in organism> actions by organism > create change in enviornment through interaction and then sensed by sensors from vr

Question 14

hypothesis formation (2 questions to ask)

Answer 14

what are likely cause and effect relationships (common sense) and what do we know already (literature search)

Question 15

eelkes motivation

Answer 15

develop better vr locomotion

Question 16

eelkes hypothesis

Answer 16

if you devleop more natural ways of locomotion it will lead to greater immersion and less simulator sickness

Question 17

pogens motivation

Answer 17

to understand visual and vestibular conflict detection and relation to simulator sickness

Question 18

pogens hypothesis

Answer 18

conflict detection should depend on variability

Question 19

experimental design questions

Answer 19

what can we manipulate to get an effect (independent variables) and what can we measure to show an effect (dependent variables)

Question 20

eelkes experimental disgn

Answer 20

assees user preference fro vr step or autowalk

Question 21

pogens experimental design

Answer 21

vestibular only, visula only (these two are single cue), visual and vestibular (ml integration)- response whihc movement was faster
check sequential and then simultaneous (cross modal)

Question 22

data collection question

Answer 22

practical (lmitations of time, cost, availability)

is it ethical (privacy, injury)

Question 23

vr research methods of collectng data

Answer 23

surveys (subjective ratings) or psychophyical methods (measure stimulus perception)

Question 24

what are the two questionairres people ask with vr

Answer 24

simulator sickenss questionairre (16 symptoms, rate 0 - 3 severe) and presence questionnaire (rate responsiveness of enviornemnt to your actions)

Question 25

what are the psychophical methods measured in vr

Answer 25

method of constant stimuli, method o adjustment, adaptive methods, magnitude estimation

Question 26

questions of data analysis and interpretation

Answer 26

how to runa staistical test, how to judge significance, what does result actually prove