perception and neuroscience 1.5
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- Created by: frankthesassyunicorn
- Created on: 02-05-19 13:07
what is not an input into the anterior cingulate/limbic circuit (motivation)?
rostral medial globus pallidus internus
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what is not an output from the anterior cingulate/limbic circuit (motivation)?
thalamus
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which statement is incorrect about the direct pathway in the parkinson's circuit?
putaminal inhibition of the globus pallidus externa reduces the globus pallidus externa's ability to inhibit STN
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which statement is incorrect about the indirect pathway in the parkinson's circuit?
ventrolateral thalamus is released from inhibition and can excite the cortex
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what is a phoneme?
shortest segment which is changed, would alter the words meaning
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what is coarticulation?
overlap in articulation in neighbouring phonemes
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what is a formant?
peak of pressure at different frequencies when saying vowels
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what is a transition?
rapid shifts in frequancy preceding formants associated with consonants
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what is the McGurk effect?
seeing a different face shape to sound said can alter perception of sound
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what was the finding of Rubin, 1976?
quicker to identify the consonant in a word than a non-word
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what was the finding of calvert, 1997?
lipreading activates the auditory cortex
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what is the phonemic restoration effect?
still hear a full word even if half of it is missing, if a sound blocking the full word sounds similar to missing sound, more people perceive the full word
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what is false about wernicke's area?
located in right lobe
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what is false about scott, 2000?
2 conditions, speech and non-speech
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what is false about hickok, 2007 dual stream model of speech perception?
anterior pathway recognises non-word sounds
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what is not a dimension of pain (melzack and casey, 1968)?
physical-discriptive = details about the physical damage to the patient
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which statement describes Pacinian Corpuscles?
large receptor field, rapid adaption, rough surfaces, vibration
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which statement describes Meissner's Corpuscles?
small receptor field, rapid adaption, light touch,
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which statement describes Merkel's discs?
small receptor field, slow adaption, gentle localized pressure
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which statement describes Ruffini's Corpuscles
large receptor field, slow adaption, skin stretch
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what is false about nociceptors?
respond to motor signals
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which statement is false?
pain fibres release GABA (excitatory) and substance P as neuromodulator in spinal cord. dorsal horn cells send info across midline to thalamus
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what are A-delta fibres?
medium threshold, thinly myelinated, medium velocity, has mechanoreceptors and nociceptors. there is a small receptive field to feel fast, sharp pain.
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what are A-beta fibres?
low threshold, myelinated, fast velocity, mechanoreceptors, small receptive field to feel touch
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what are C-fibres?
high threshold, no myelination, slow velocity, CMR1 and TRPV1 nociceptors, large receptive fields to feel dull/secondary pain
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Which statement is false about higher order pain pathways?
pain signals are provided to brainstem sites that control pain related behaviour (Cingulate cortex)
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which statement is false about Benedetti, 1999, 2003
it was about gate control theory
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which statement is false about Melzack and wall, 1965
it was about placebos
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what is true about muscle fibres (propioception)?
intrafusal sensory endings wrapped around fibres (fast transmission) and gamma motor endings (slow transmission) respond to changes of muscle length
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what is true about Golgi Tendon Organs (propioception)?
at junction of muscles and tendons, linear relationship between firing rate and force imposed by muscle
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what is true about Joint angle receptors (propioception)?
not precise measure of propioception, most active at extreme angles
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what is false about the ascending pathway?
more sensitive when muscles are tense (Proske, 2012)
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what is false about muscle thixotrophy?
stretching muscle for short time , fibres become longer than actual limb when goes slack
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what was the findings of Naito, 1999?
vibration can cause people to experience illusory movements, activation of muscle fibres misinterpreted as stretch of arm in PET scan
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what was the findings of blanchard, 2011?
movement interference is caused by all senses
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what was the findings of schram-christensen, 2010?
stimulating motor cortex leads to illusory movement even with nerve blocks
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which statement is false about synasthesia?
more common in males
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what is false about cross activation theory?
synaethesia can be replicated by brain lesions
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what is false about disinhibited Feedback theory?
synaethesia arises before early procesing of visual form (mattingly, 2001)
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Other cards in this set
Card 2
Front
what is not an output from the anterior cingulate/limbic circuit (motivation)?
Back
thalamus
Card 3
Front
which statement is incorrect about the direct pathway in the parkinson's circuit?
Back
Card 4
Front
which statement is incorrect about the indirect pathway in the parkinson's circuit?
Back
Card 5
Front
what is a phoneme?
Back
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