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Symmetric Bihemispheric Postmortem Brain Cutting to Study Healthy and Pathological Brain Conditions in Humans

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Comorbidity: cognition and biology count!

Orly Rubinsten¹, Avishai Henik

¹Edmond J. Safra Brain Research Center for the Study of Learning Disabilities, Department of Learning Disabilities, University of Haifa, Mount Carmel, Haifa 31905, Israel. orly.rubinsten@gmail.com

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Summary

Pure behavioral disorder cases are rare, but distinct disorders do exist beyond symptom networks. Core deficits often lie in cognitive or brain functions, challenging purely network-based explanations for mental health conditions.

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Area of Science:

Psychiatry
Neuroscience
Cognitive Science

Background:

Behavioral disorder classifications often show symptom overlap.
Network models propose disorders arise from interconnected symptoms.
Pure cases without symptom overlap are considered rare.

Purpose of the Study:

To argue for the existence of distinct behavioral disorders despite symptom overlap.
To critique the limitations of purely network-based models of disorders.
To highlight the importance of underlying cognitive and brain deficits.

Main Methods:

Review and critique of existing literature on behavioral disorder classification.
Analysis of the limitations of symptom network models.
Comparison of behavioral level observations with underlying cognitive and neural mechanisms.

Main Results:

While pure cases are rare, distinct behavioral disorders are argued to exist.
Symptom networks primarily describe behavioral manifestations, not core deficits.
Cognitive and brain-level deficits present a different, more fundamental picture of disorder.

Conclusions:

Network models are limited in explaining the full spectrum of behavioral disorders.
Core deficits at cognitive or brain levels are crucial for understanding distinct disorders.
A broader perspective integrating cognitive and neural factors is needed beyond behavioral symptom networks.