ADVANCED NEUROFUNCTIONAL TECHNIQUES

[915SV]
a.a. 2025/2026

2° Anno - Primo Semestre

Frequenza Obbligatoria

  • 6 CFU
  • 48 ore
  • INGLESE
  • Sede di Trieste
  • Opzionale
  • Convenzionale
  • Scritto
  • SSD BIO/09
Curricula: NEUROSCIENCE PERCORSO COMUNE
Syllabus

The aim is to provide the students with the basic knowledge necessary to interpret and design electrophysiological and imaging experiments.

D1 - Knowledge and understanding:
-Understanding the physical and physiological basis of the modern techniques used in brain imaging;
-To understand the theoretical foundations of electrophysiology and optogenetics;
-To be familiar with the practical aspects and technical constrains involved.

D2 - Applying knowledge and understanding:
By the end of the course the students will be able to:
-design and perform a functional imaging experiment;
-to read critically a scientific paper that makes use of the neurofunctional techniques presented in the course;
-to choose the most suitable experimental approaches for a given scientific question.

D3 - Making judgments:
The ability to make informed judgments will be developed through the interaction with the lecturers during class time, as well as through the preparation of the final examination, which requires the student to elaborate and comprehend the topics discussed over the course.

D4 - Communication skills:
The lessons will be given using the appropriate scientific language. Students will be encouraged to interact with the lecturers and among themselves to improve their scientific vocabulary, their ability to pose questions and to expose their ideas.
The oral examination will give students further stimuli to improve their communication skills, demonstrate their ability to elaborate the acquired knowledge and communicate the key points in a concise and effective way.

D5 - Learning skills:
The ability to learn will be stimulated by studying and applying the concepts presented during the frontal lessons, and will be assessed through the evaluation procedures described above. The students will acquire the knowledge necessary to understand the neurofunctional techniques used to investigate brain function in health and disease.

Basic knowledge in biophysics and neurophysiology.

The course in Neurofunctional Techniques will cover both theoretical and practical aspects of the major techniques used to investigate brain function, with special emphasis on recent developments.

Prof. Cingolani - 6 cfu:
Functional imaging: We will explore various functional imaging methods, with a focus on calcium imaging, and learn how they can be used to reveal the activity of brain networks in ex vivo an in vivo preparations. This entails gaining knowledge about the underlying principles, practical considerations and recent advancements in the field for in vivo applications.

Electrophysiology: We will learn principles and practical aspects to conduct single cell and multielectrode array recordings. Special emphasis will be on in vivo applications and advanced analysis techniques.

Optogenetics, chemogenetics and mechanogenetics: We will explore how these techniques can be used in combination with functional imaging, electrophysiology and behavioral tests to dissect brain function and memory engram. We will concentrate on the most recent accomplishments recorded in literature.

Behavior: we will explore the major behavioral tests used to assess brain function, including those related to motor skills, social behavior and cognitive abilities. We will particularly highlight the significance of tests that assess behavioral phenotypes relevant to human pathologies such as autism, depression, ataxia and epilepsy.

Prof. Cesca - 1 cfu:
Statistics: we will cover the major statistical tests useful to interpret data sets in neuroscience.

Handbook of Neural Activity Measurements. Romain Brette & Alain Destexhe, Cambridge University Press 2012

Ion Channels of Excitable Membranes, 3rd edition
Bertil Hille
Sinauer Associates 2001

Original papers discussed and provided during lessons

Relevant slides and pdf files will be provided during classes and posted in Moodle.

Prof. Cingolani - 6 cfu:
Calcium Imaging. Types of fluorescent calcium indicators, small molecules indicators, genetically encoded calcium indicators, intracellular calcium dynamics, calcium binding, calcium influx, calcium extrusion, calcium diffusion, calcium-dependent fluorescence properties, fluorescence intensities, relative fluorescence change, fluorescence ratio, fluorescence lifetime, FRET efficiency, calibration of calcium indicators, simplified models of calcium dynamics, calcium microdomain model, buffered calcium diffusion, single-compartment model, how to estimate the endogenous calcium binding ratio, how to reconstruct neural spike trains, in vivo calcium imaging: fiber photometry, 2-photon and miniscope calcium imaging.

Optical imaging of synaptic activity: synaptic vesicle pools and dynamics, types of fluorescent indicators for monitoring vesicle release, the alkaline trapping method: isolating exocytosis from endocytosis, optical mapping of release properties at synapses.

Electrophysiology. Bioelectricity: electrical potentials, electrical currents, resistors and conductors, Ohm’s law, ion in solutions and electrodes, capacitors and their electrical field, currents through capacitors, current clamp and voltage clamp, glass microelectrodes and tight seals.

Optogenetics, chemogenetics and magnetogenetics. Types of microbial opsins, optogenetic tools for neuronal excitation and inhibition, chemogenetic tools for biochemical control, delivering optogenetic tools into neuronal systems, transgenic animals, developmental and layer-specific targeting, light delivery and readout hardware for optogenetics, how to use optogenetics/chemogenetics to dissect the memory engram. Recent advances in magnetogenetics.

Behavioral studies in animal models of neurodevelopmental disorders. What is an animal model. Validity of an animal model: construct, face and predictive validity. Study of the face validity of an animal model: general health, motor functions, anxiety, social behavior, learning and memory. Examples of animal models of brain disorders: episodic ataxia, autism, depression and epilepsy.

Statistics - Prof. Cesca - 1 cfu: how to choose the correct statistical test: parametric and non-parametric statistical tests, paired and unpaired Student’s t-Test, one and two-way ANOVA.

Lectures, discussion of scientific papers and small group tutorials.

The material used during the lessons will be made available through the moodle platform.
Any necessary change in the course modalities due to COVID19 emergency will be published at the Department, Master Programme and Course websites.

Student assessment includes:
a) A written test consisting of 10 multiple-choice questions. Each question has only one correct answer, and each correct answer is awarded 1 point. Maximum score: 10. The test will be conducted on the Moodle platform.
b) A 30 min presentation of a scientific paper assigned at the beginning of the course. Students will be asked to (i) identify the scientific questions addressed in the paper, (ii) evaluate how appropriate the neuro-functional techniques employed to address the questions are and (iii) judge strengths, weaknesses and impact of the paper conclusions. Presentations will be conducted in small groups (6 students). Maximum score: 20.
The written test contributes one-third (maximum 10 points), while the oral presentation contributes two-thirds (maximum 20 points) to the final evaluation.

The exam score is given on a thirty-point scale. To pass the exam, the student must achieve a score of 18/30. To attain the highest score (30/30 with honors), the student must answer all questions correctly in the written test and demonstrate full mastery of the neurofunctional techniques.
The examination procedure is explained at the beginning of the course and is also available in the course introduction presentation.

The contents explore topics related to the objectives of the United Nations 2030 Agenda for Sustainable Development.
Specifically,
N.3 Health and wellbeing
N.4 Education of quality