Lecture 1 Methods Flashcards
Name 2 synonyms for dorsal
Superior and Rostral
Ventral is…
the bottom of the brain or chest in humans
opposite of lateral
medial
opposite of superior
inferior
caudal mean
toward the tail
Unilateral means
occurring on one side
contralateral
opposite side
ipsilateral
same side
proximal means
close to the body mass
Distal means
far from the main body mass
Synonyms: Inferior
Meaning?
Sub
Hypo
Infra
Meaning: Below
Synonyms: Tract
Fasciculus
Funiculus
Lemniscus
Meaning: Fibre bundles and neural pathways in the CNS
Describe: Sagittal Plane
Vertical plane dissecting the brain from front to back giving a lateral view
Describe: Coronal Plane
Vertical plane dissecting the brain from ear to ear separating anterior and posterior
Describe: Horizontal Plane
Dissects brain separation superior from inferior
Describe: Cross Section
Dissected view of the spine
Describe: Oblique Plane
Any odd directional plane
Structure tells us…
about the morphology or form of things
Function tells us…
about activity
Define invasive
Puncture or incision of the skin and denoting
procedures or tests that require an insertion of an
instrument or material that is foreign into the body
What is the difference between Spatial and Temporal Resolution?
Spatial resolution refers to how clear in space the data is taken (where something is located) where as Temporal refers to how clear in time the image is taken (when something happened)
Correlation
a reliable relationship between two things
Correlation denotes cause.
True or False?
False
Reaction times, detection thresholds and stimulus discrimination are examples of what?
Behavioural Response research methods
Startle response and Electrodermal activity (EDA) are examples of what?
Physiological response research methods
Why is the startle response reliable?
Its a brainstem reflex for protection
What is an EDA and what does it measure?
Electrodermal Activity and is a measure of emotional arousal
Name some causal research methods
Acquired Brain Injury
Lesion Studies
Acquired brain damage is …
any brain damage acquired after birth
Lesions studies are…
Removing or disabling a portion of the brain and observing the resulting
behaviour.
Negative of lesion studies?
rarely administered with 100% accuracy
Transcranial direct current stimulation, drug blocks, cryogenic blocks and transcranial magnetic stimulation are examples of….
Stimulation and disrupting brain activity
What is MEG and describe?
Magneto-encephalography
Electric currents generate small magnetic fields which can be measured at the scalp. It provides high temporal resolution but only provides correlation data.
What is EEG and describe?
Electroencephalography
Electrical activity generates electric fields which can be measured at the scalp level with many nodes attached to the scalp. Correlational data only
PET is…
Positron Emission Tomography
Radioactive isotope is used to trace activity
MRI is…
Magnetic Resonance Imaging
DTI is ….
Diffusion Tension Imaging
variant of MRI measures motion of water molecules and shows mostly the axon fibres
fMRI is …
Functional Magnetic Resonance Imaging
Indirect measure of neuronal
activity, measures the flow of blood in the brain. Provides structural and functional in the same image.
