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. 2021 May 18;11(5):429. doi: 10.3390/jpm11050429

Table 1.

Summary of cognitive rehabilitation studies for PD.

Authors Sample Characteristics of the Sample H&Y Stages Intervention Format Duration Domains Trained Outcomes
Sammer et al., 2006 [36] 26 PD
12 PD-CR
14 PD-ACG
Age:
70.8 PD-CR
68.5 PD-ACG
Years of
education:
-
2–3 CR: Executive
Function Training (Paper)
ACG: Standard Treatment
(Occupational
Therapy, Physical Therapy and
Treatment)
(Paper)
Group 10 sessions
30 min/session
-Working memory
-Executive functions
Improvements in
PD-CR:
-Executive functions
París et al., 2011 [37] 28 PD
12 PD-CR
16 PD-CG
Age:
64.7 PD-CR
65.4 PD-CG
Years of education:
9.8 PD-CR
9.5 PD-CG
1–3 “SmartBrain Tool”
(Paper + Computer)
Group + home 12 sessions
3 times/week
4 weeks
45 min/session
-Attention
-Memory
-Psychomotor speed
-Executive functions
-Visuospatial abilities
-Language
-Calculation abilities
Improvements in
PD-CR:
-Attention
-Processing speed
-Visual memory
-Visuospatial and visuoconstructive abilities
-Semantic fluency
-Executive functions
Edwards et al., 2013 [38] 74 PD
32 PD-CR
42 PD-CG
Age:
69.4 PD-CR
68.2 PD-CG
Years of education:
14.8 PD-CR
15.4 PD-CG
1–3 “Insight Software”
(Computer)
Home 36 sessions
3 times/week
3 months
60 min/session
-Processing speed Improvements in
PD-CR:
-Processing speed
Naismith et al., 2013 [39] 50 PD
35 PD-CR
15 PD-CG
Age:
68.5 PD-CR
64.9 PD-CG
Years of education:
14.9 PD-CR
14.0 PD-CG
1–3 Cognitive training (Neuropsychological Educational Approach to Remediation (NEAR)) + Psychoeducation
(Computer)
Group 14 sessions
7 weeks
2 times/week
60 min of CR
60 min psycho-education
-Memory
-Psychomotor speed
-Mental flexibility
-Verbal fluency
Improvements in
PD-CR:
-Verbal memory
Cerasa et al., 2014 [40] 15 PD
8 PD-CR
7 PD-CG
Age:
61.1 PD-CR
58.3 PD-CG
Years of education:
8 PD-CR
8 PD-CG
1–3 CR: “Rehacom”
CG: Simple visuomotor coordination tapping task
(Computer)
Group (CR) + Individual (CG) 6 weeks
2 times/week
60 min/session
-Attention
-Information processing task
Improvements in
PD-CR:
-Attention/ Processing speed
-Working memory
Increased functional brain activity:
-Left dorsolateral prefrontal cortex
-Superior left parietal cortex
Costa et al., 2014 [41] 17 PD-MCI
9 PD-CR
8 PD-CG
Age:
66.1 PD-CR
70.9 PD-CG
Years of education:
11.2 PD-CR
10.6 PD-CG
1–3 CR: Cognitive change training
CG: Breathing training
(Paper)
- 4 weeks
3 times/week
45 min/session
-Shifting abilities (Verbal fluency and Trail Making Test) Improvements in
PD-CR:
-Verbal fluency
-Trail Making Test
-Prospective memory procedures
Peña et al., 2014 [42] 42 PD
20 PD-CR
22 PD-ACG
Age:
67.7 PD-CR
68.1 PD-ACG
Years of education:
10.5 PD-CR
10.2 PD-ACG
1–3 CR: “REHACOP”
ACG: Occupational activities
(Paper)
Group 39 sessions
13 weeks
2 times/week
60 min/session
-Attention
-Memory
-Language
-Executive functions
-Social cognition
-Processing speed
Improvements in
PD-CR:
-Processing speed
-Visual memory
-Social cognition
-Functional disability
Petrelli et al., 2014 [43] 65 PD
22 PD-NV
22 PD-MF
21 PD-CG
Age:
69.2 PD-NV
68.8 PD-MF
69.1 PD-CG
Years of education:
13.1 PD-NV
13.6 PD-MF
12.8 PD-CG
1–3 NV: “NEUROvitalis” (Computer)
MF: “Mentally fit”
(Paper)
Group + Individual 12 sessions
6 weeks
2 times/week
90 min/session
NV
-Attention
-Verbal memory
-Visual memory
-Executive functions
MF
-Attention
-Memory
-Creativity
Improvements in
PD-NV versus
PD-CG:
-Working memory
-Verbal memory
Improvements in
PD-MF versus
PD-CG:
-Depressive symptoms
Improvements in
PD-NV versus
PD-MF:
-Working memory
Angelucci et al., 2015 [44] 15 PD-MCI
7 PD-CR
8 PD-CG
Age:
67.6 PD-CR
71.9 PD-CG
Years of education:
11.7 PD-CR
10.6 PD-CG
- CR: Cognitive change training
CG: Simple cognitive tests
(Paper)
- 12 sessions
4 weeks
3 times/week
45 min/session
-Executive functions Improvements in
PD-CR:
-Executive functions
Fellman et al., 2018 [45] 52 PD
26 PD-CR
26 PD-ACG
Age:
64.8 PD-CR
65.5 PD-ACG
Years of education:
5.3 PD-CR
5.5 PD-ACG
- CR: Working memory
ACG: Online quiz task “Älypää”
(Computer)
Home 3 weeks
3 times/week
30 min/session
-Working memory Improvements in
PD-CR:
-Working memory
-Depressive symptoms
Bernini et al., 2020 [46] 53 PD
18 PD-CCT
12 PD-PCT
18 PD-CG
Age:
74.6 PD-CCT
69.8 PD-PCT
69.3 PD-CG
Years of education:
9.5 PD-CCT
8.0 PD-PCT
7.6 PD-CG
≤3 CCT: “CoRe” (Computer)
PCT: “CoRe” (Paper)
CG: Unstructured activities
Group 3 weeks
4 times/week
45 min/session
-Logical executive functions
-Attention/processing speed
-Working memory
-Episodic long-term memory
Improvements in
PD-CCT versus
PD-PCT:
-Global cognition
Improvements in
PD-CCT versus CG:
-Global cognition
-Attention/processing speed
Ophey et al., 2020 [47] 75 PD
37 PD-CR
38 PD-CG
Age:
64.0 PD-CR
63.8 PD-CG
Years of education:
15.0 PD-CR
15.5 PD-CG
2–3 CR: “NeuroNation”
(Computer)
Individual + home 5 weeks
5 times/week
30 min/session
-Working memory Improvements in
PD-CR:
-No improvements
Assesment after 3 months:
-Verbal working memory
-Visuoconstructive abilities

PD = Parkinson’s disease; CR = cognitive rehabilitation; ACG = active control group; CCT = computer cognitive training; PCT = paper-pencil cognitive training; CG = control group; H&Y = Hoehn and Yahr scale; MCI = Mild cognitive impairment