Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

sensation and Perception exam 1 > sensation and perception exam 1 > Flashcards

sensation and perception exam 1 Flashcards

1
Q

what is the resting potential of a neuron in millivolts?

A

-70 mv

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what 3 cranial nerves innervate tongue?

A

7 (facial nerve), 9 (glossopharyngeal nerve), 10 (vagus nerve)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the across fiber pattern of taste?

A

each taste fiber responds best to one stimulus, but also responds to a lesser extent other stimuli

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what is the labeled line model of taste?

A

if the labeled line model was correct each taste bud would be devoted to one aspect of taste quality ( example: only sweet)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

how is mild sourness detected on presynaptic cells?

A

sour channels open, allowing for hydrogen ions from acids to flow in

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

how is aversive saltiness detected on presynaptic cells?

A

Aversive saltiness channels open, allowing for the sodium ions to flow in

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

how is mild saltiness detected on presynaptic cells?

A

ENaC channels open, allowing sodium ions to flow in

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what receptor type pairings on receptor taste cells are used to detect bitter?

A

T2R1, T2R2, T2R3 ( any T2 type of receptor)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
45
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
46
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
47
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
48
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
49
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
50
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
51
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
51
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
52
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
53
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
54
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
55
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
56
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
57
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
58
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
59
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
60
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
61
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
62
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
63
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
64
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
65
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
66
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
67
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
68
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
69
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
70
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
71
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
72
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
73
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
74
Q
A
75
Q
A
76
Q
A
77
Q
A
78
Q
A
79
Q
A
80
Q
A
81
Q
A
82
Q
A
83
Q
A
84
Q
A
85
Q
A
86
Q
A
87
Q
A
88
Q
A
89
Q
A
90
Q
A
91
Q
A
92
Q
A
93
Q
A
94
Q
A
95
Q
A
96
Q
A
97
Q
A
98
Q
A
99
Q
A
100
Q
A
101
Q
A
102
Q
A
103
Q
A
104
Q
A
105
Q
A
106
Q
A
107
Q
A
108
Q
A
108
Q
A
109
Q
A
110
Q
A
111
Q
A
112
Q
A
113
Q
A
114
Q
A
115
Q
A
116
Q
A
117
Q
A
118
Q
A
119
Q
A
119
Q
A
120
Q
A
120
Q
A
121
Q
A
121
Q
A
122
Q
A
122
Q
A
123
Q
A
124
Q
A
125
Q
A
126
Q
A
127
Q
A
128
Q
A
129
Q
A
129
Q
A
130
Q
A
130
Q
A
131
Q
A
132
Q
A
133
Q
A
133
Q
A
134
Q
A
135
Q
A
136
Q
A
137
Q
A
138
Q
A
139
Q
A
140
Q
A
141
Q
A
142
Q
A
143
Q
A
144
Q
A
145
Q
A
146
Q
A
147
Q
A
148
Q
A
149
Q
A
150
Q
A
151
Q
A
152
Q
A
153
Q
A
154
Q
A
155
Q
A
156
Q
A
156
Q
A
157
Q
A
158
Q
A
159
Q
A
160
Q
A
161
Q
A
162
Q
A
163
Q
A
164
Q
A
165
Q

what are the 4 steps of a signal being sent from a gustatory receptor to the amygdala, hypothalamus or the orbitofrontal cortex?

A
  1. the signal leaves the tongue via the cranial nerves
  2. the signal then is passed on to the nucleus of the solitary tract
  3. the signal then enters the primary taste cortex ( anterior insular cortex and the frontal operculum
    4.the signal then passes onto either the amygdala, hypothalamus or the orbitofrontal cortex
166
Q

why does food taste weird on planes? how is taste affected?

A
  • facial cranial nerve 7 passes by the eardrum and can be stimulated by sound .it is thought that the simulation of the auditory branch of this nerve interferes with taste.
  • saltiness, bitterness, and sourness are all unaffected by plane noise. sweetness is diminished and umami is enhanced by the noise.
167
Q

how do odor stimuli from food in the mouth reach the olfactory mucosa?

A

the odorants reach the olfactory mucosa via the retronasal route

168
Q

why do people feel calmer when vibrations are sent through headphones?

A

the vibrations stimulate the vagus nerve which is part of the parasympathetic nervous system which is associated with “rest and digest”

169
Q

what happens to your ability to taste when you hold your nose closed? what taste quality is unaffected by this?

A

orange colored cherry soda tastes less like cherry than red colored cherry soda

170
Q

where are the response from taste, vision, touch and smell first combined in the brain? what kind of neurons that are specific to this region and why are they special? how is the firing of these neurons affected by hunger?

A
  • orbitofrontal cortex,
  • bimodal neurons: they respond to two senses ( taste and smell or taste and vision)
  • firing rate of bimodal neurons increases with hunger and decreases with satiation
171
Q

what gene is associated with normal bitterness tasters?

A

AVI

172
Q

what 3 factors are responsible for individual differences in taste?

A
  • genetics
  • experience
  • cultural practices
173
Q

at what stage in utero can a fetus detect tastants?

A

14 weeks

174
Q

at what stage in utero can a fetus’s olfactory receptor neurons detect odorants?

A

24 weeks

175
Q

what is the absolute threshold?

A

the minimum stimulation needed to detect a particular stimulus 50% of the time

176
Q

what is the difference threshold?

A

the minimum difference between two stimuli required for detection 50% of the time

177
Q

what is psychophysical scaling?

A

the process of measuring how changes in stimulus intensity relate to changes in the perceived intensity

sensation and Perception exam 1 (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions