Zusammenfassung der Ressource
Cognitive Models
- Executive
Function
- Supervisory Attentional System
- Arousal
- Selective Attention
- Switching
- Norman & Shallice, 1986
- Frontal Lobes but wider networks implicated.
- Prefrontal cortex - especially for sustained attention
- Neuroimagiing has shown common netwrok of activity
across all tasks - Neuropsychological tests with
multi-component structure (e.g. EF) are unlikely to
identify unique patterns of brain activity that correlate
perfectly with specific 'domains'. (Poor construct validity)
- EF Cognitive
Models
- Switching/ Inhibition/ Updating
Model
- Miyake et al, 2000
- Executive System Hypothesis (Hierarchy/ central
executive)
- Baddeley,
1990
- Regulation
(Behaviour/Emotion)
- Switching
- Impulse control
- Inhibition
- Difficult to measure
as a construct
- Updating
- Goal Directed Behaviour
- Establish NEW behaviour
- Deficits better understood
by observing behaviour?
Functional assessments.
- Introspection
- Cognitive
flexibility
- Planning
- Organising
- Problem Solving
- Creative thinking
- Phineas
Gage
- Working
Memory
- Baddeley & Hitch, 1974
- Cowan, 1995; McElree, 2006
- Visual and
Auditory
- Attention
- Sustained
Attention
- Each construct of
attention is defined by
its operation but not
related to any specific
neural substrate
- NO known overall neural
construct of attention - not
associated with functional
neuroanatomical substrate
- SensoriMotor Network (SMN) only identified area at
present. All others based on lesion data:
- Parietal Lobe indicated in disengaging attention
- Inattention resulting from right posterior hemisphere lesions
- Measures testing the same
construct do not correlate
highly with each other.
- Attention
Cognitive
Models
- Three Component Model; Alerting,
Orientating Executive Control
- Fan & Posner, 2004
- Independent system vs integrated
with "information processing"
- Two-factor attention (Reflex and
voluntary)
- James, 1890
- Wasserman &
Wasserman, 2013
- Visual and
auditoryl Attention
- Shifting
Attention
- Top down and
Bottom up
- Vigilence
- Working
Memory
- Memory
- H.M.
case
- Declarative / Explicit
- Semantic
- Episodic
- Recall
- Recognition
- Nondeclarative / Implicit
- Item-specific (e.g. priming)
- Procedural
- Memory
Cognitive
Models
- Three stage model of declarative memory
- McCaugh, 1966
- Registration
- Short Term
- Long Term
- Multicomponent Model
- State-based models
- Working
Memory
- Acts as the link between attention
and short term memory in the
pursuit of specific goals
- Short term memory indicated in inferior
parietal lobe
- Normal learning and retention disrupted in temporal lesions
- Hippocampal complex
- General Models
- Dynamic view of brain
organisation (Novelty vs Heuristic
processing)
- Cortical Systems are
multifunctional - don't
support only one
specific cognitive
process.
- Static view of brain organisation (e.g.
hemispheric; left = language, right = visual
perception and seven network model)
- Cattell- Horn- Carroll (CHC)
model
- Carroll, 1993
- Four major classes of cognitive functions;
Receptive, memory, thinking, expression.
- General Intelligence
(g)
- Terman, 1916
- No longer seen as 'one
intelligence' - implication of
other independent factors
(e.g. processing speed and
attention).
- Combination of domain scores risks losing information
- unreliable indices of injury severity or deteriation.