Specific Useful Notes for Research
Content used for my Research and Patent:
The below information includes the notes taken during sessions that helped me understand the various intricacies of neuroscience.
Electrophysiological Signals & Frequency Analysis:
- Spectrum: Set of frequencies laid out.
- Needed for electrophysiological signals: Statistical analysis of brain signals.
- Application: Frequency analysis.
- Studying signals: Analysis of brain waves and their patterns.
- Music: An audio spectrum; waveforms that can be analyzed similarly to brain waves.
- Brain waves: Electrophysiological signals generated by the brain, such as those measured by EEG.
- Potential generated: Understanding and interpreting brain wave data.
Neurological Signals & Functional Imaging:
- Functional Imaging:
- Techniques: EEG, CT, MRI.
- Contextual recording: Capturing brain activity in response to specific tasks or stimuli.
- EEG: Measures electrical activity of the brain.
- CT and MRI: Imaging techniques to visualize brain structure and function.
- Functional Imaging: Combines real-time recordings with contextual data.
Cultural Neuroscience:
- Studying brain waves in response to cultural stimuli:
- Examples: Brain waves responding to advertisements, movies, music, and theater.
- Music vs. musical theater: Comparison of brain responses to different forms of auditory and visual stimuli.
Scientific Methods:
- School of thought: Supporting team, multiple explanations unless a law or theorem is established.
- Steps in Scientific Method:
- A literature review.
- Hypothesis formation.
- Validation: Law (if validated), Conjecture (if not validated).
- Research design.
- Intellectual property rights: Publish, patent application.
- Structured observations.
- Correlation analysis:
- Equation: y=mx+b.
- m: Correlation coefficient, indicating the strength and direction of a relationship between variables.
- Significant correlation: Greater than 0.5.
- Non-significant correlation: Less than 0.5.
Top-Down vs. Bottom-Up Approaches:
- Top-Down:
- Defining requirements: Based on existing knowledge and convictions.
- Music causes meditation: Example of a top-down hypothesis.
- Bottom-Up:
- Academic research: Data-driven approach, findings are published as they emerge.
- Gathering ideas: Correlation-based analysis, finding significant relationships.
- Example: Correlation - 0.5; significant if greater than 0.5.
Patanjali’s Ashtanga Yoga:
- Eight organs (stages) of yoga:
- Steps: Jagrat (awake), Shushupti (sleep-like), Suturia (meditative state), controlled breathing.
Neural Correlates:
- Studying the neural correlations of various activities:
- Meditation.
- Effects of music.
- Brain waves in response to advertisements, movies, and music theater.
Work Breakdown Structure (WBS):
- Structured approach to project management and research:
- Breaking down tasks and observations into manageable components.
Peripheral Nervous System:
- Paralysis of Spine:
- Impact: Loss of function in parts of the body controlled by affected spinal nerves.
- Related to extremities: Paralysis can extend to the furthest points of the body (arms, legs).
- Neuroscience:
- Nerve Mapping: Identifying which nerves connect to specific body parts.
- Neural Circulation: The movement of neural signals throughout the nervous system.
Neural Processes and Components:
- Transfer Protein: Involved in the transport of molecules across cell membranes.
- Pupillary Dilation: The widening of pupils, controlled by the autonomic nervous system.
- Synapses:
- Chemical Synapse: Communication between neurons through neurotransmitters.
- Electrical Synapse: Direct electrical communication between neurons via gap junctions.
Scientific Research Methods:
- Anecdotal Blog Post: Informal, personal observations shared online.
- Literature Review: Comprehensive analysis of existing scientific research on a topic.
- Sources: Scientific papers, often accessed through platforms like Google Scholar.
- Review Process: Summarizing and synthesizing findings from multiple studies.
- Survey: Collecting data from participants to gather empirical evidence.
- Google Scholar: A tool for finding and accessing scientific research papers.
Brain and Circulatory System:
- Blood-Brain Barrier (BBB): A selective barrier that protects the brain from harmful substances in the bloodstream.
- Cerebrospinal Fluid (CSF): Fluid surrounding the brain and spinal cord, providing protection and nutrients.
- Thrombosis: Formation of a blood clot within a blood vessel.
- Embolism: A blood clot that travels through the bloodstream and can block blood flow in smaller vessels.
- Consequence: Fresh blood may not reach certain areas, leading to tissue damage.
Mathematical and Analytical Tools:
- Logarithmic Scale: A way of displaying data that spans a large range of values in a compact form.
- Indices: Numerical values representing the logarithmic scale, facilitating easier comparison of data.
- Move Frequency: Frequency adjustments based on a logarithmic scale to analyze data efficiently.
Additional Concepts:
- Neural Correlates: Studying relationships between neural activity and behaviors or experiences.
- Examples: Brain responses to stimuli like advertisements, music, or movies.
- Intellectual Property:
- Patent Application: Protecting new inventions or discoveries.
- Publishing Research: Sharing findings with the scientific community through journals or conferences.
- Work Breakdown Structure (WBS): Breaking down complex projects into manageable tasks and components.
Academic and Ethical Concepts:
- Honor System: More strict than penalties; relies on individual integrity.
- Copyright: Legal protection for original works.
- Plagiarism: Using someone else’s information without credit.
- Fair Use Principle: Part of copyright law allowing limited use of copyrighted material without permission under specific conditions.
Field Work:
- Zoology: Involves going out into natural environments to study animals.
Neuroscience and Brain Function:
- Brain:
- Not inherently “broken” or “queer”; examining misconceptions about brain function.
- Illusions: Understanding why they work and what they reveal about perception.
- Lipid Layer: Structural component of cell membranes, crucial for neuron function.
- Neuron Potential: Electrical charge difference across the neuron membrane.
- Synapses:
- Chemical Synapses: Pass neurotransmitters from one neuron to another.
- Electrical Synapse: Regulated by the proton pump; allow direct electrical communication between neurons.
Neuron Structure and Function:
- Threshold Gated Units:
- Neuron: A neuron fires an action potential when a threshold voltage is reached.
- Bilipid Layer: The threshold for cytoplasm entry.
- Soma: The cell body of the neuron, which integrates inputs.
- Dendrons: Branches of neurons that receive signals.
- Axons: Transmit signals from the neuron.
- Resting Potential: The baseline electrical charge of a neuron.
- Voltage, Potential, EMF: Related concepts describing electrical characteristics of neurons.
Neural Networks:
- Artificial Neural Networks (ANNs): Computer systems modeled on the human brain’s neural networks.
- Biological Neural Networks: Networks of neurons in the brain.
Perception and Neural Decoding:
- Perception: The process of making sense of sensory information.
- Neural Decoding: Interpreting brain wave patterns to understand mental states and processes.
- Brain-Computer Interface (BCI): Technology that enables direct communication between the brain and an external device.
Music and Meditation:
- Music: Can induce a meditative state of mind.
Research Methodology:
- Sample Recruitment: Selecting subjects to participate in an experiment.
- Phase 0: Preliminary trials.
- Phase 1: Initial testing phase.
- Consent: Obtaining permission from participants to use their data.
- Event-Related Potentials (ERPs): Brain responses that are the direct result of a specific sensory, cognitive, or motor event.
- Registration After Perceptions: Recording brain activity after perceptual events.
Miscellaneous Concepts:
- Transfer Protein: Proteins that help transport molecules across cell membranes.
- Nano Protein: Possibly referring to proteins involved in nanoscale biological processes or technologies.
- Keystone/Capstone: Essential elements or projects that form the basis or culmination of a larger system or course of study.
Neuroscience Terms and Concepts:
- Encephalography:
- Refers to the study and recording of the brain’s electrical activity, often linked to methods like EEG (electroencephalography).
- EMG (Electromyography):
- Technique for measuring the electrical activity of muscles.
Brain Anatomy and Imaging:
- Sagittal:
- Refers to a side view or section of the body/brain.
- Coronal:
- Refers to a crown-like or frontal section of the body/brain.
- Gyri (plural of Gyrus):
- Ridges on the cerebral cortex.
- Sulci (plural of Sulcus):
- Grooves or depressions on the cerebral cortex.
- Parietal Protuberance:
- The most prominent point on the parietal bone of the skull.
- Homunculus:
- A visual representation of the body’s sensory and motor regions in the brain, often depicted as a distorted human figure on the somatosensory and motor cortices.
Brain Imaging:
- Brain MRI (Magnetic Resonance Imaging):
- A technique used to create detailed images of the brain’s structure and any abnormalities.
Vision and the Visual System:
- Visual Cortex:
- Located at the back of the brain in the occipital lobe, responsible for processing visual information.
- Optic Chiasm:
- The point at which the optic nerves from each eye cross to the opposite side of the brain.
Key Questions and Concepts:
- Why are Vision Centers at the Back of the Brain?
- Evolutionary and anatomical efficiency: The occipital lobe’s location allows extensive neural processing space for complex visual information.
- Pathways: The visual information from the eyes travels via the optic nerves to the optic chiasm and then to the visual cortex in the occipital lobe for detailed processing.
Additional Concepts:
- Redundancy:
- The brain’s ability to compensate for damage or loss of function in one area through other pathways or regions.
Scientific Concepts:
- Hypotheses and Conjectures:
- Conjecture: A conjunction of thoughts; not a proven law or theorem but behaves as such through consensus.
- Neuroscience: Many topics are conjectural, relying on consensus rather than absolute proof.
- Pure Science vs. Applied Science:
- Pure Science: Abstract or absolute science, focusing on fundamental principles without immediate practical application.
- Applied Science: Practical application of scientific knowledge to solve real-world problems.
Scientific Processes:
- Definition and Characterization:
- Definition: Specification of properties to create a specific, unambiguous term.
- Characterization: Figuring out the properties of something to understand it better.
- Doppler Shift:
- A change in frequency or wavelength of a wave in relation to an observer moving relative to the wave source.
Evidence-Based Practices:
- EBP (Evidence-Based Practice): Decision-making based on the best available evidence.
- EBM (Evidence-Based Medicine): The practice of medicine based on evidence from well-conducted research.
- Prescribing Medicine: Some medicines are prescribed based on evidence. This practice is questioned and evaluated by skeptics.
Skepticism:
- Skepticism: Questioning and critically examining accepted ideas.
- Skepticist: Re-evaluates existing ideas.
- Experimental Skepticism: Reconsidering data and experimental results.
Technology and Meditation:
- Apps and Devices: Can measure attention and meditation levels, although these levels are often conjectural.
- Trace: A heightened state of consciousness.
- Meditation Apps: Questioning the accuracy and validity of apps that claim to measure meditation levels.
Philosophical Schools:
- Vedantic School of Philosophy:
- Swami Vivekananda’s teachings.
- Meditation: Explored through various philosophical perspectives.
- Seven Whys: A method to explore deeper reasons behind meditation.
Access to Information:
- Open Access: Journals and articles available for free to the public.
- Closed Access: Journals and articles available only to subscribers or through purchase.
Terminology and Definitions:
- Magazine: A term for a publication as well as an ammunition storage device.
- Journal: A more appropriate term for scientific publications compared to “magazine”.
- Occidental vs. Oriental: Western vs. Eastern perspectives.
- Dharma or Karma: Key concepts in Indian philosophy related to duty and action.
- Rebirth Beliefs: Distinctions between those who believe in rebirth (Aastik) and those who do not (Nastik).
Scientific Writing:
- Structure of a Paper:
- Title: Summarizes the main topic.
- Highlights or Results: Key findings or outcomes.
- Discussion: Interpretation and implications of the results.
Miscellaneous Concepts:
- Black Box: A system or model whose internal workings are not well understood but whose behavior is agreed upon by consensus.
Nervous System Pathways:
- Efferent Pathways:
- Definition: Nerves that carry signals away from the central nervous system to cause an effect in the body.
- Function: Primarily involved in motor functions, causing muscles to contract or glands to secrete.
- Input: They are considered input pathways from the perspective of the muscle or gland being stimulated.
- Afferent Pathways:
- Definition: Nerves that carry sensory signals towards the central nervous system.
- Function: Involved in transmitting sensory information from the body to the brain for processing.
- Output: They are considered output pathways from the perspective of the sensory organs providing data.
Nervous System Functions:
- Sensory Functions:
- Role: Involves the detection and transmission of sensory information (e.g., touch, pain, temperature) to the central nervous system.
- Pathways: Utilizes afferent neurons to bring sensory data from peripheral receptors to the brain and spinal cord.
- Association Functions:
- Frontal Cortex: Critical region for processing and thinking.
- Role: Involves higher-order functions such as decision-making, problem-solving, planning, and reasoning.
- Location: Part of the frontal lobe, associated with complex cognitive tasks and executive functions.
- Frontal Cortex: Critical region for processing and thinking.
- Motor Functions:
- Role: Involves initiating and controlling voluntary and involuntary movements.
- Pathways: Utilizes efferent neurons to transmit signals from the central nervous system to muscles and glands to produce a response.