Introduction to cognitive neuroscience Flashcards Preview

Physiology and Neuroscience > Introduction to cognitive neuroscience > Flashcards

Flashcards in Introduction to cognitive neuroscience Deck (15):
1

What is cognition?

Language
Memory
Attention
Executive Function
Perception

2

What is executive function?

Complex behavioural cognitive functions
Control of emotion and behaviour
Inhibition, planning, problem solving, reasoning, mental flexibility, task switching

3

What do frontal lobe lesion patients show an impairment for?

Stroop effect condition

4

What is Agnosia?

Failure of recognition

5

What is visual agnosia?

agnosia for visual stimuli

6

What is prosopagnosia?

Agnosia for faces

7

For patient DF what was impaired?

Object perception, recognising letter or line drawings

8

For patient DF what was intact?

Colour, tactile and auditory recognition help her to recognise real objects, is able to draw from memory

9

Where in the brain seems to be the issue in patients with visual agnosia?

Ventral stream lesion
Dorsal stream intact

10

Where in the brain seems to be the issue in patients with optic ataxia?

Dorsal stream lesion
Ventral stream intact

11

What are the limitations of lesion studies?

Brain functions might be carried out in a disturbed manner, rather than each region having a fixed function
Actual area might not be affected but lesion affects the pathway toward a particular area
Patients have usually a bigger lesion than the region of interest
Other impairment (e.g. other lesions might interefe with performance)

12

What is Transcranial Magnetic Stimulation (TMS)?

Non-invasive pain free method to stimulate the human cortex

13

What does TMS create?

A rapidly changing magnetic field that temporarily interferes with brain functions

14

What are the advantages of TMS?

More precise than a lesion
More participants can be tested with the same area No interference from other lesions

15

What are the disadvantages of TMS?

Networks and Pathways
Impossibility to stimulate deep brain structures directly
Coil position needs to be guided by prior evidences and needs to be monitiored