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The development of FEDUPP: feeding experimentation device users processing package to assess learning and cognitive flexibility.

Code ↔ Paper

2 matches between paragraphs of the paper and lines of its authors' code, computed by the harvester (lexical-v1). Click a colored paragraph or line to see its counterpart.

The 2 matches
  1. [1] § Methods › CNN-based model ↔ scripts/meal_classifiers.py, lines 63–98 · score 0.68 · ReLU, feature map, convolutional, kernel, CNN, classes
  2. [2] § Results › Comparison of FEDUPP metrics with win-stay/lose-shift ↔ scripts/direction_transition.py, lines 1623–1667 · score 0.58 · way ANOVA, Win Stay, Lose shift, interaction, CASK

Paper

Loaded from Europe PMC by your browser, not stored by OSCR: doi.org · Europe PMC

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The authors' code

Python · 250 lines · 9.8 KB · MIT · 1 match

  1. """
  2. This script defines and implements neural network models (RNN and CNN) for classifying
  3. meal-related time-series data. It includes classes for datasets, the classifiers
  4. themselves, and functions for training, evaluation, and prediction.
  5. """
  6. import numpy as np
  7. from sklearn.metrics import f1_score
  8. import torch
  9. import torch.nn as nn
  10. import torch.optim as optim
  11. from torch.utils.data import DataLoader, Dataset
  12. # Detect best available device including MPS for Mac
  13. device = torch.device('cuda' if torch.cuda.is_available() else 'mps' if torch.backends.mps.is_available() else 'cpu')
  14. class TimeSeriesDataset(Dataset):
  15. """A custom PyTorch Dataset for time-series data."""
  16. def __init__(self, X, y):
  17. """
  18. Args:
  19. X (torch.Tensor): The input features, with shape (num_samples, seq_len).
  20. y (torch.Tensor): The corresponding labels, with shape (num_samples,).
  21. """
  22. self.X = X # Tensor of shape (num_samples, seq_len)
  23. self.y = y # Tensor of shape (num_samples,)
  24. def __len__(self):
  25. """Returns the total number of samples."""
  26. return len(self.y)
  27. def __getitem__(self, idx):
  28. """Returns a single sample and its label."""
  29. return self.X[idx], self.y[idx]
  30. class RNNClassifier(nn.Module):
  31. """A Recurrent Neural Network (RNN) classifier using LSTM layers."""
  32. def __init__(self, input_size=1, hidden_size=16, num_layers=1, num_classes=2):
  33. """
  34. Args:
  35. input_size (int): The number of features in the input.
  36. hidden_size (int): The number of features in the hidden state.
  37. num_layers (int): The number of recurrent layers.
  38. num_classes (int): The number of output classes.
  39. """
  40. super(RNNClassifier, self).__init__()
  41. self.hidden_size = hidden_size
  42. self.num_layers = num_layers
  43. self.lstm = nn.LSTM(input_size, hidden_size, num_layers, batch_first=True)
  44. self.fc = nn.Linear(hidden_size, num_classes)
  45. def forward(self, x):
  46. # x: [batch_size, seq_len]
  47. x = x.unsqueeze(-1) # Now x is [batch_size, seq_len, 1]
  48. h0 = torch.zeros(self.num_layers, x.size(0), self.hidden_size, device=x.device)
  49. c0 = torch.zeros(self.num_layers, x.size(0), self.hidden_size, device=x.device)
  50. out, _ = self.lstm(x, (h0, c0))
  51. out = out[:, -1, :]
  52. out = self.fc(out)
  53. return out
  54. class CNNClassifier(nn.Module):
  55. """A 1D Convolutional Neural Network (CNN) for time-series classification."""
  56. def __init__(self, num_classes=2, maxlen=4):
  57. """
  58. Args:
  59. num_classes (int): The number of output classes.
  60. maxlen (int): The maximum length of the input sequences.
  61. """
  62. super(CNNClassifier, self).__init__()
  63. self.conv1 = nn.Conv1d(in_channels=1, out_channels=16, kernel_size=2)
  64. self.relu = nn.ReLU()
  65. self.conv2 = nn.Conv1d(in_channels=16, out_channels=32, kernel_size=2)
  66. self.pool = nn.MaxPool1d(kernel_size=2)
  67. self.maxlen = maxlen
  68. # Calculate the size of the feature map after convolution and pooling
  69. self.feature_size = self._get_feature_size()
  70. self.fc = nn.Linear(self.feature_size, num_classes)
  71. def _get_feature_size(self):
  72. # Replace 'maxlen' with your actual maximum sequence length
  73. dummy_input = torch.zeros(1, 1, self.maxlen) # Shape: [batch_size, channels, seq_len]
  74. x = self.relu(self.conv1(dummy_input))
  75. x = self.relu(self.conv2(x))
  76. x = self.pool(x)
  77. feature_size = x.view(1, -1).size(1)
  78. return feature_size
  79. def forward(self, x):
  80. # x shape: [batch_size, seq_len]
  81. x = x.unsqueeze(1) # Shape: [batch_size, channels=1, seq_len]
  82. x = self.relu(self.conv1(x))
  83. x = self.relu(self.conv2(x))
  84. x = self.pool(x)
  85. x = x.view(x.size(0), -1) # Flatten the tensor
  86. x = self.fc(x)
  87. return x
  88. def train(model:nn.Module, lr:float, num_epochs:int, train_loader:DataLoader,
  89. X_test_tensor:torch.tensor, y_test_tensor:torch.tensor):
  90. """
  91. Trains a given neural network model.
  92. Args:
  93. model (nn.Module): The model to be trained.
  94. lr (float): The learning rate for the optimizer.
  95. num_epochs (int): The number of training epochs.
  96. train_loader (DataLoader): The DataLoader for the training data.
  97. X_test_tensor (torch.Tensor): The test features.
  98. y_test_tensor (torch.Tensor): The test labels.
  99. Returns:
  100. nn.Module: The trained model.
  101. """
  102. criterion = nn.CrossEntropyLoss()
  103. optimizer = optim.Adam(model.parameters(), lr=lr)
  104. print(f"Model Parameters: {sum(p.numel() for p in model.parameters())}")
  105. for epoch in range(num_epochs):
  106. model.train()
  107. total_loss = 0
  108. correct_train = 0
  109. total_train = 0
  110. for X_batch, y_batch in train_loader:
  111. X_batch, y_batch = X_batch.to(device), y_batch.to(device)
  112. optimizer.zero_grad()
  113. outputs = model(X_batch)
  114. loss = criterion(outputs, y_batch)
  115. loss.backward()
  116. optimizer.step()
  117. total_loss += loss.item() * X_batch.size(0)
  118. _, predicted = torch.max(outputs.data, 1)
  119. total_train += y_batch.size(0)
  120. predicted, y_batch = predicted.cpu().numpy(), y_batch.cpu().numpy()
  121. correct_train += (predicted == y_batch).sum().item()
  122. avg_loss = total_loss / total_train
  123. train_accuracy = correct_train / total_train
  124. model.eval()
  125. with torch.no_grad():
  126. outputs_test = model(X_test_tensor)
  127. _, predicted_test = torch.max(outputs_test.data, 1)
  128. correct_test = (predicted_test.cpu() == y_test_tensor).sum().item()
  129. test_accuracy = correct_test / y_test_tensor.size(0)
  130. if (epoch+1) % 10 == 0 or epoch == num_epochs-1:
  131. print(f'Ep {epoch+1}, Loss: {avg_loss:.4f}, Train Acc: {train_accuracy:.4f}, Test Acc: {test_accuracy:.4f}')
  132. return model
  133. def evaluate_meals_by_groups(model:nn.Module, ctrl_input:torch.Tensor, ctrl_y:torch.Tensor,
  134. exp_input:torch.Tensor, exp_y:torch.Tensor):
  135. """
  136. Evaluates the model's performance on control and experimental groups.
  137. Args:
  138. model (nn.Module): The trained model.
  139. ctrl_input (torch.Tensor): Input data for the control group.
  140. ctrl_y (torch.Tensor): Labels for the control group.
  141. exp_input (torch.Tensor): Input data for the experimental group.
  142. exp_y (torch.Tensor): Labels for the experimental group.
  143. """
  144. model.eval()
  145. with torch.no_grad():
  146. outputs_ctrl = model(ctrl_input)
  147. _, predicted_ctrl = torch.max(outputs_ctrl.data, 1)
  148. correct_test = (predicted_ctrl.cpu().numpy() == ctrl_y).sum().item()
  149. ctrl_accuracy = correct_test / len(ctrl_y)
  150. outputs_exp = model(exp_input)
  151. _, predicted_exp = torch.max(outputs_exp.data, 1)
  152. correct_test = (predicted_exp.cpu().numpy() == exp_y).sum().item()
  153. exp_accuracy = correct_test / len(exp_y)
  154. print(f'Control Accuracy: {ctrl_accuracy:.3f}, Exp Accuracy: {exp_accuracy:.3f}')
  155. predicted_ctrl, predicted_exp = predicted_ctrl.cpu().numpy(), predicted_exp.cpu().numpy()
  156. ctrl_good, ctrl_total = np.sum(predicted_ctrl), np.size(predicted_ctrl)
  157. exp_good, exp_total = np.sum(predicted_exp), np.size(predicted_exp)
  158. # calculate F1 score
  159. f1_ctrl = f1_score(ctrl_y, predicted_ctrl)
  160. f1_exp = f1_score(exp_y, predicted_exp)
  161. print(f'Control Group: {ctrl_total-ctrl_good}/{ctrl_total} good meals with proportion of {1-ctrl_good/ctrl_total}; F1 Score: {f1_ctrl:.3f}')
  162. print(f'Experiment Group: {exp_total-exp_good}/{exp_total} good meals with proportion of {1-exp_good/exp_total}; F1 Score: {f1_exp:.3f}')
  163. def evaluate_meals_on_new_data(model:nn.Module, ctrl_input:torch.Tensor, exp_input:torch.Tensor):
  164. """
  165. Evaluates the model on new, unlabeled data from control and experimental groups.
  166. Args:
  167. model (nn.Module): The trained model.
  168. ctrl_input (torch.Tensor): New input data for the control group.
  169. exp_input (torch.Tensor): New input data for the experimental group.
  170. """
  171. ctrl_input, exp_input = ctrl_input.to(device), exp_input.to(device)
  172. model.eval()
  173. with torch.no_grad():
  174. outputs_ctrl = model(ctrl_input)
  175. _, predicted_ctrl = torch.max(outputs_ctrl.data, 1)
  176. outputs_exp = model(exp_input)
  177. _, predicted_exp = torch.max(outputs_exp.data, 1)
  178. predicted_ctrl, predicted_exp = predicted_ctrl.cpu().numpy(), predicted_exp.cpu().numpy()
  179. ctrl_good, ctrl_total = np.sum(predicted_ctrl), np.size(predicted_ctrl)
  180. exp_good, exp_total = np.sum(predicted_exp), np.size(predicted_exp)
  181. print(f'Control Group: {ctrl_total-ctrl_good}/{ctrl_total} good meals with proportion of {1-ctrl_good/ctrl_total}')
  182. print(f'Experiment Group: {exp_total-exp_good}/{exp_total} good meals with proportion of {1-exp_good/exp_total}')
  183. def predict(model:nn.Module, input):
  184. """
  185. Makes predictions on new data using the trained model.
  186. Args:
  187. model (nn.Module): The trained model.
  188. input (array-like or torch.Tensor): The input data for prediction.
  189. Returns:
  190. np.ndarray: The predicted class labels.
  191. """
  192. if not isinstance(input, torch.Tensor):
  193. input = torch.tensor(input, dtype=torch.float32)
  194. else:
  195. input = input.float()
  196. # Ensure input is on the same device as the model
  197. try:
  198. model_device = next(model.parameters()).device
  199. except StopIteration:
  200. model_device = device
  201. input = input.to(model_device)
  202. model.eval()
  203. with torch.no_grad():
  204. outputs_ctrl = model(input)
  205. _, predicted_ctrl = torch.max(outputs_ctrl.data, 1)
  206. return predicted_ctrl.cpu().numpy()

meal_classifiers.py at commit 783c7f7, under MIT · at the source

Overview

Authors: Mingyang Yao1,2, Avraham M. Libster2, Shane Desfor2,3, Freiya Malhotra2, Nathalia Castorena2, Patricia Montilla-Perez2, Francesca Telese2
  1. Department of Mathematics, School of Physical Sciences, University of California,San Diego, CA USA
  2. Department of Psychiatry, School of Medicine, University of California,San Diego, CA USA
  3. School of Biological Sciences, University of California,San Diego, CA USA
Institutions: University of California San Diego (United States)
Journal: Translational psychiatry, volume 16, issue 1, article 348
Dates: received 19 August 2025; accepted 30 April 2026; published online 16 May 2026
Type: Research article · Language: English
License: CC BY
Identifiers: DOI 10.1038/s41398-026-04091-6 · PMID 42140909 · PMCID PMC13346605 · OpenAlex W4413346959
Open access: gold, a free copy (OpenAlex)
Status: code verified
Categories: mouse (organism), cognitive (subfield)
Methods: Statistics, Machine learning, Evoked potentials, Connectivity
Keywords: Neuroscience, Psychology
MeSH: Cognitive Flexibility*, Feeding Behavior*, Learning*, Reversal Learning*, Animals, Hippocampus, Male, Mice, Mice, Inbred C57BL (* major topic)
Topic: Mobile Learning in Education (Information Systems, Computer Science), according to OpenAlex
Citations: not cited yet (Europe PMC); 49 references in the paper

Abstract

Cognitive flexibility, the ability to adapt behavior in response to changing contingencies, is a key component of adaptive decision-making and is impaired in multiple neuropsychiatric disorders. Traditional rodent assays of cognitive flexibility are conducted in experimenter-controlled sessions in restrictive environments, limiting ecological validity and temporal resolution. Here, we developed a fully automated, home-cage paradigm using the Feeding Experimentation Device 3 (FED3) and a companion open-source analysis pipeline, the Feeding Experimentation Device Users Processing Package (FEDUPP), to assess learning and cognitive flexibility with minimal experimenter intervention. The paradigm combines a single-day fixed-ratio 1 (FR1) task with a multi-day, reversal learning task in which active port assignment switches every 25 pellets collected. FEDUPP implements multi-scale learning metrics, including overall accuracy, an 80% accuracy milestone, and a machine learning-based classification of meal accuracy to capture motivated, goal-directed feeding. In wild-type mice, the paradigm detected rapid FR1 acquisition and progressive within-block adaptation during reversal. Application to mice with dorsal hippocampal knockdown of the scaffolding protein CASK revealed faster FR1 acquisition and higher accuracy. In addition, a faster onset of the first accurate meal after reversal suggests an improvement in updating goal-directed feeding behavior. These findings demonstrate that FEDUPP enables high-resolution, continuous assessment of learning and cognitive flexibility in ethologically relevant settings, and that meal-based accuracy provides a sensitive metric for detecting subtle changes in flexibility not captured by traditional measures.

Reproduced under the paper's license (CC BY), from the paper cited above.

Repositories

Its files are read in the Code ↔ Paper reader above, with 2 matches between paragraphs and lines of code.

ftlabucsd/FEDUPP

License: MIT
State: the link answers, verified on 28 September 2026
Evidence: files inventoried
Commit: 783c7f7d665a4a2def670cf69b0c92c2f6d9f041, 19 May 2026
Languages: Python (9), Jupyter (2)
Size: 1,176 files, 11 scripts
Software Heritage: not archived
Found in: the text, “Analysis programming tools”
Holds: README, license file, environment (requirements.txt), documentation, 2 notebooks
Not found: CITATION.cff, tests, continuous integration
Tools: NumPy (10 files), pandas (7 files), Matplotlib (6 files), PyTorch (3 files), scikit-learn (3 files), SciPy (3 files), seaborn (3 files)
Availability: 1 check, the latest on 28 September 2026: the link answers
  • 28 September 2026: the link answers
13 files

Zenodo 20277475

License: MIT
State: the link answers, verified on 28 September 2026
Evidence: files inventoried
Size: 1 file
Software Heritage: not checked
Found in: DataCite
Not found: README, license file, CITATION.cff, environment file, tests, continuous integration, documentation
Tools: NumPy (10 files), pandas (7 files), Matplotlib (6 files), PyTorch (3 files), scikit-learn (3 files), SciPy (3 files), seaborn (3 files)
Availability: 1 check, the latest on 28 September 2026: the link answers (HTTP 200)
  • 28 September 2026: the link answers (HTTP 200)
13 files

ftlabucsd/FED3-data

License: MIT
State: the link answers, verified on 28 September 2026
Evidence: files inventoried
Commit: 783c7f7d665a4a2def670cf69b0c92c2f6d9f041, 19 May 2026
Languages: Python (9), Jupyter (2)
Size: 1,176 files, 11 scripts
Software Heritage: not archived
Found in: DataCite
Holds: README, license file, environment (requirements.txt), documentation, 2 notebooks
Not found: CITATION.cff, tests, continuous integration
Tools: NumPy (10 files), pandas (7 files), Matplotlib (6 files), PyTorch (3 files), scikit-learn (3 files), SciPy (3 files), seaborn (3 files)
Availability: 1 check, the latest on 28 September 2026: the link answers
  • 28 September 2026: the link answers
13 files

Zenodo 20277476

License: MIT
State: the link answers, verified on 28 September 2026
Evidence: files inventoried
Size: 1 file
Software Heritage: not checked
Found in: DataCite
Not found: README, license file, CITATION.cff, environment file, tests, continuous integration, documentation
Tools: NumPy (10 files), pandas (7 files), Matplotlib (6 files), PyTorch (3 files), scikit-learn (3 files), SciPy (3 files), seaborn (3 files)
Availability: 1 check, the latest on 28 September 2026: the link answers (HTTP 200)
  • 28 September 2026: the link answers (HTTP 200)
13 files

The paper's code and data availability statement is in the Data section.

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What the map holds:

  • 4 repositories of the authors' code, each at its verified commit, with its license and how the link was found in the paper;
  • 44 scripts, each with its path and the digest of its content;
  • 2 matches between paragraphs of the paper and lines of the code (method lexical-v1);
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Its JSON (tracing-map.json) is deposited on Zenodo with its DOI once the map is validated.

Data

No dataset and no data link were found in the paper.

Data availability

FED3 behavioral data is available on https://github.com/ftlabucsd/FEDUPP.

Reproduced under the paper's license (CC BY), from the paper cited above.

Versions

The history of this record: each version stored by the harvester or made by a correction of its authors or of the maintainers of its code, and what changed in its facts. The texts of the paper (its abstract, its availability statements) are not part of it; versions that changed only those are not listed.

Version 1, 28 September 2026: the first record

Recorded: type, language, journal, volume, issue, pages, dates, 7 authors, 2 keywords, 9 MeSH terms, 5 funders, 49 references.

Cite

This paper

Yao, M., Libster, A. M., Desfor, S., Malhotra, F., Castorena, N., Montilla-Perez, P., & Telese, F. (2026). The development of FEDUPP: feeding experimentation device users processing package to assess learning and cognitive flexibility. Translational psychiatry, 16(1), 348. https://doi.org/10.1038/s41398-026-04091-6

BibTeX

@article{yao2026development,
author = {Yao, Mingyang and Libster, Avraham M. and Desfor, Shane and Malhotra, Freiya and Castorena, Nathalia and Montilla-Perez, Patricia and Telese, Francesca},
title = {{The development of FEDUPP: feeding experimentation device users processing package to assess learning and cognitive flexibility}},
journal = {Translational psychiatry},
year = {2026},
month = may,
volume = {16},
number = {1},
pages = {348},
publisher = {Nature Publishing Group},
issn = {2158-3188},
doi = {10.1038/s41398-026-04091-6},
url = {https://doi.org/10.1038/s41398-026-04091-6},
pmid = {42140909},
pmcid = {PMC13346605}
}

RIS

TY - JOUR
AU - Yao, Mingyang
AU - Libster, Avraham M.
AU - Desfor, Shane
AU - Malhotra, Freiya
AU - Castorena, Nathalia
AU - Montilla-Perez, Patricia
AU - Telese, Francesca
TI - The development of FEDUPP: feeding experimentation device users processing package to assess learning and cognitive flexibility
T2 - Translational psychiatry
J2 - Transl Psychiatry
PY - 2026
DA - 2026/05/16
VL - 16
IS - 1
SP - 348
SN - 2158-3188
PB - Nature Publishing Group
DO - 10.1038/s41398-026-04091-6
UR - https://doi.org/10.1038/s41398-026-04091-6
LA - en
ER -

CSL-JSON

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"container-title": "Translational psychiatry",
"author": [
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"given": "Mingyang"
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